Developing device

Abstract

The application provides a developing device, which comprises a box body having a first end and a second end arranged oppositely; a developing assembly comprising a developing roller arranged in the box body; a transmission assembly arranged at the first end, the transmission assembly being configured to drive the developing assembly to move after receiving power output by an image forming device; a transmission unit, the transmission unit comprising a first rotating member and a transmission member, the first rotating member being rotatably arranged at the first end of the box body, the first rotating member being in transmission connection with the transmission assembly and the transmission member respectively, and a detected member being in transmission connection with the transmission member; the detected member being at least partially located at the second end, the detected member being in transmission connection with the transmission assembly through the transmission member, and the detected member being capable of moving between a detection position and a non-detection position. The transmission assembly is arranged at the first end of the box body, and the detected member is at least partially located at the second end of the box body, so that the space occupied by the transmission structure at the second end of the box body is reduced, and the miniaturization of the developing device is facilitated.

Description

[0001] This application claims the following Chinese patent applications filed with the Chinese Patent Office on July 11, 2022, with application number 202221791169.X and title "A developing apparatus"; filed with the Chinese Patent Office on August 4, 2022, with application number 202222050794.5 and title "A developing cartridge"; filed with the Chinese Patent Office on August 15, 2022, with application number 202222146027.4 and title "A developing cartridge"; and filed with the Chinese Patent Office on August 22, 2022, with application number 202222217669.9 and title "A developing apparatus". The following are Chinese patent applications filed on August 31, 2022, with application number 202222316708.0 and title "A developing apparatus"; filed on September 22, 2022, with application number 202222522985.7 and title "A developing apparatus"; filed on September 26, 2022, with application number 202222564932.1 and title "A developing apparatus"; and filed on September 28, 2022, with application number 202222587340.1. Chinese patent applications entitled "A developing apparatus" have been filed with the Chinese Patent Office on October 14, 2022 (application number 202222730289.5); on November 17, 2022 (application number 202223105178.1); and on January 6, 2023 (application number 202320064347.7); and on January 18, 2023 (application number 2023201553). 53.3. Priority to Chinese patent applications entitled "Developing Apparatus"; Chinese patent applications filed with the Chinese Patent Office on February 9, 2023, application number 202320200658.1, entitled "A Developing Apparatus"; Chinese patent applications filed with the Chinese Patent Office on February 24, 2023, application number 202320334037.2, entitled "A Developing Box and Drum Assembly Thereof"; and Chinese patent applications filed with the Chinese Patent Office on December 8, 2022, application number 202223298061.X, entitled "A Developing Apparatus", the entire contents of which are incorporated herein by cross-reference. Technical Field

[0002] This application relates to the field of electronic imaging technology, and more particularly to a developing apparatus. Background Technology

[0003] The developing unit is a detachable component widely used in image forming apparatuses. After the printing consumables are depleted, the developing unit needs to be replaced. To enable the image forming apparatus to detect whether the developing unit is installed correctly and to ascertain its age, a detection component is installed on the developing unit. This component can touch other detection components within the image forming apparatus, allowing the apparatus to detect whether the developing unit is installed correctly. The detection component can be preset with different numbers of touches, touch speeds, and touch durations to allow the image forming apparatus to detect various information (such as age, model, and capacity).

[0004] Currently, developing devices incorporate numerous transmission mechanisms, enabling the inspected parts to perform complex contact actions. However, this large number of transmission mechanisms makes miniaturization of developing devices difficult. Summary of the Invention

[0005] Based on this, this application provides a developing apparatus to solve the problem that the large number of transmission structures in the prior art makes it difficult to miniaturize the developing apparatus.

[0006] The developing apparatus provided in this application includes:

[0007] The box body has a first end and a second end that are arranged opposite to each other in a first direction, a third end and a fourth end that are arranged opposite to each other in a second direction, and a fifth end and a sixth end that are arranged opposite to each other in a third direction. The first direction, the second direction and the third direction are arranged to intersect each other.

[0008] A developing assembly includes a developing roller rotatably disposed within a cartridge body, the developing roller being located at a third end of the cartridge body, the developing roller extending axially along a first direction, and the developing roller being located at the third end of the cartridge body in a second direction;

[0009] A transmission component is disposed at the first end, and the transmission component is configured to drive the developing component to move after receiving power output from the image forming apparatus;

[0010] The transmission unit includes a first rotating component and a transmission component. The first rotating component is rotatably disposed at the first end of the housing. The first rotating component is connected to the transmission assembly and the transmission component respectively. The detected component is connected to the transmission component.

[0011] The tested component is located at least partially at the second end, and the tested component is connected to the transmission assembly via the transmission assembly. The tested component is capable of moving between a testing position and a non-testing position.

[0012] The developing apparatus provided in this application includes a cartridge, a developing assembly, a transmission assembly, a transmission unit, and a sample to be tested. When the transmission assembly receives power output from the image forming apparatus and drives the developing assembly to move, the transmission assembly can drive the sample to move between a detection position and a non-detection position via the transmission unit, enabling the image forming apparatus to detect information from the developing apparatus. The transmission assembly is located at the first end of the cartridge, and the sample to be tested is at least partially located at the second end of the cartridge, reducing the space occupied by the transmission structure at the second end of the cartridge and facilitating the miniaturization of the developing apparatus. Attached Figure Description

[0013] Figure 1.1 This is a three-dimensional structural schematic diagram of another developing apparatus provided in Embodiment 1 of this application;

[0014] Figure 1.2 A cross-sectional view of the developing apparatus provided in Embodiment 1 of this application;

[0015] Figure 1.3 This is an exploded structural diagram of the second end of the box provided in Embodiment 1 of this application;

[0016] Figure 1.4 This is a schematic diagram of the developing apparatus installed on the drum assembly according to Embodiment 1 of this application;

[0017] Figure 1.5 Another viewpoint structural diagram of the developing apparatus provided in Embodiment 1 of this application installed on the drum assembly;

[0018] Figure 1.6 This is a schematic diagram of the drum assembly provided in Embodiment 1 of this application;

[0019] Figure 1.7 This is a three-dimensional structural schematic diagram of another developing apparatus provided in Embodiment 1 of this application;

[0020] Figure 1.8 for Figure 1.7 A schematic diagram of the developing apparatus shown from another perspective;

[0021] Figure 1.9 This is a cross-sectional view of the developing apparatus provided in Embodiment 1 of this application;

[0022] Figure 1.10 This is an exploded view of the developing apparatus provided in Embodiment 1 of this application;

[0023] Figure 1.11A side view of the first end of the developing apparatus provided in Embodiment 1 of this application after the first protective cover is hidden;

[0024] Figure 1.12 This is a schematic diagram of the structure of the first end provided in Embodiment 1 of this application;

[0025] Figure 1.13 and Figure 1.14 This is a three-dimensional structural schematic diagram of another developing apparatus provided in Embodiment 1 of this application;

[0026] Figure 1.15 This is a right view of the developing apparatus provided in Embodiment 1 of this application;

[0027] Figure 1.16 This is a three-dimensional structural diagram of the second end of the second cover and the box body in a disassembled state, as provided in Embodiment 1 of this application.

[0028] Figure 1.17 This is a left view of the second end of the box provided in Embodiment 1 of this application;

[0029] Figure 1.18 This is a three-dimensional structural diagram of the second cover provided in Embodiment 1 of this application;

[0030] Figure 1.19 A three-dimensional structural diagram of the second end of the box provided in Embodiment 1 of this application;

[0031] Figure 1.20 This is an exploded structural diagram of the first end of the box body provided in Embodiment 1 of this application;

[0032] Figure 1.21 This is a right view of the first end of the box body after the first protective cover is hidden, as provided in Embodiment 1 of this application.

[0033] Figure 1.22 Right view of the first end of the rear housing of the first cover and power receiving device provided in Embodiment 1 of this application;

[0034] Figure 1.23 This is a three-dimensional structural diagram of the first end of the rear housing of the concealed first cover and power receiving device provided in Embodiment 1 of this application;

[0035] Figure 1.24 This is an exploded structural diagram of the first end of the rear housing of the concealed first cover and power receiving device provided in Embodiment 1 of this application;

[0036] Figure 1.25 A three-dimensional structural schematic diagram of the first mounting bracket provided in Embodiment 1 of this application;

[0037] Figure 1.26 This is a schematic diagram of the developing apparatus provided in Embodiment 1 of this application;

[0038] Figure 1.27 This is a schematic diagram of the drum assembly provided in Embodiment 1 of this application;

[0039] Figure 2 This is a three-dimensional structural diagram of a developing apparatus provided in Embodiment 2 of this application;

[0040] Figure 3 This is a three-dimensional structural diagram of the first cover and the first end of the box body after disassembly provided in Embodiment 2 of this application;

[0041] Figure 4 This is a three-dimensional structural diagram of the first end of the housing of the developing apparatus provided in Embodiment 2 of this application after the first protective cover is removed.

[0042] Figure 5 This is a three-dimensional structural diagram of the first protective cover provided in Embodiment 2 of this application;

[0043] Figure 6 This is a three-dimensional structural diagram of the first rotating component provided in Embodiment 2 of this application;

[0044] Figure 7 This is a three-dimensional structural diagram of the first rotating component, the translational component, and the stirring rack provided in Embodiment 2 of this application;

[0045] Figure 8 A three-dimensional structural diagram of the first rotating member and the translational member provided in Embodiment 2 of this application;

[0046] Figure 9 This is a partially enlarged schematic diagram of the translational component provided in Embodiment 2 of this application;

[0047] Figure 10 This is a three-dimensional structural diagram of the translational component, stirring gear, and stirring shaft in an exploded state, as provided in Embodiment 2 of this application.

[0048] Figure 11 This is a three-dimensional structural diagram of the second end of the box in an exploded state, as provided in Embodiment 2 of this application.

[0049] Figure 12 This is a three-dimensional structural diagram of the first rotating member and the translational member when the tested member is in a non-testing position, as provided in Embodiment 2 of this application.

[0050] Figure 13 This is a three-dimensional structural diagram of the first rotating member and the translational member when the tested member is in a non-testing position, as provided in Embodiment 2 of this application.

[0051] Figure 14 This is a schematic diagram of the structure of the first rotating member and the translational member when the tested member is in a non-testing position, as shown in Embodiment 2 of this application;

[0052] Figure 15 This is a three-dimensional structural diagram of the first rotating member and the translational member when the tested part is in the testing position, as provided in Embodiment 2 of this application.

[0053] Figure 16 This is a three-dimensional structural diagram of the first rotating member and the translational member when the tested part is in the testing position, as provided in Embodiment 2 of this application.

[0054] Figure 17 This is a schematic diagram of the structure of the first rotating member and the translational member when the tested member is in the testing position, as shown in Embodiment 2 of this application;

[0055] Figure 18 This is a three-dimensional structural diagram of the first rotating component provided in Embodiment 2 of this application;

[0056] Figure 19 This is a three-dimensional structural diagram of the developing apparatus provided in Embodiment 3 of this application;

[0057] Figures 20-22 This is an exploded view of the right end of the developing apparatus provided in Embodiment 3 of this application;

[0058] Figure 23 This is a three-dimensional structural diagram of the developing apparatus provided in Embodiment 3 of this application;

[0059] Figure 24 This is an exploded view of the left end of the developing apparatus provided in Embodiment 3 of this application;

[0060] Figure 25 This is a three-dimensional structural diagram of the translational component, the component being tested, the slider, and the stirring gear provided in Embodiment 3 of this application;

[0061] Figure 26 This is a schematic diagram of the structure of the translational member when it is closest to the first cover, as provided in Embodiment 3 of this application;

[0062] Figure 27 This is a schematic diagram of the structure of the translational member when it is closest to the second cover, as provided in Embodiment 3 of this application;

[0063] Figure 28 This is an exploded view of the left end of the developing device when the tested item is in a non-testing position, as provided in Embodiment 3 of this application.

[0064] Figure 29 This is an exploded view of the left end of the developing device when the object to be tested is in the testing position, as provided in Embodiment 3 of this application.

[0065] Figure 30 This is a three-dimensional structural diagram of the second cover, the tested component, and the slider when the tested component is in a non-testing position, as provided in Embodiment 3 of this application.

[0066] Figure 31 This is a three-dimensional structural diagram of the second cover, the tested component, and the slider when the tested component is in the testing position, as provided in Embodiment 3 of this application.

[0067] Figure 32 and Figure 33 This is a schematic diagram of the developing apparatus provided in Embodiment 4 of this application;

[0068] Figure 34 This is a schematic diagram of the developing apparatus provided in Embodiment 4 of this application after the first protective cover is removed and the swinging component is separated from the cartridge body;

[0069] Figure 35 This is an exploded view of the transmission assembly after the first cover is separated from the box body, as provided in Embodiment 4 of this application;

[0070] Figure 36 This is a side view of the stirring gear and the first rotating member in the connected state according to Embodiment 4 of this application;

[0071] Figure 37 For the developing apparatus in Figure 117 A top view of the state after removing the first cover;

[0072] Figure 38 This is a side view of the stirring gear driving the first rotating component to push the oscillating component to move, as provided in Embodiment 4 of this application;

[0073] Figure 39 For the developing apparatus in Figure 38 A top view of the state after removing the first cover;

[0074] Figure 40 This is a side view of the first rotating member after the transmission protrusion on it leaves the swinging member, as provided in Embodiment 4 of this application;

[0075] Figure 41 For the developing apparatus in Figure 133 A top view of the state after removing the first cover;

[0076] Figure 42 This is a schematic diagram of the developing apparatus provided in Embodiment 5 of this application;

[0077] Figure 43 This is a structural diagram of the developing apparatus provided in Embodiment 5 of this application with the first protective cover removed;

[0078] Figure 44 An exploded view of the transmission assembly after the first protective cover is separated from the box body, as provided in Embodiment 5 of this application;

[0079] Figure 45 This is a schematic diagram of the translational component after it has separated from the box body, as provided in Embodiment 5 of this application;

[0080] Figure 46 An exploded view of the developing apparatus provided in Embodiment 5 of this application located at the second end of the cartridge;

[0081] Figure 47 This is a schematic diagram of the structure of the tested component, transmission unit, and stirring gear provided in Embodiment 5 of this application;

[0082] Figure 48 This is a top view of the stirring gear and the first rotating component in the connected state provided in Embodiment 5 of this application;

[0083] Figure 49 for Figure 48 Cross-sectional view along the AA direction;

[0084] Figure 50 This is a top view of the stirring gear driving the first rotating component to push the translational component to move, as provided in Embodiment 5 of this application;

[0085] Figure 51 for Figure 50 Cross-sectional view in the middle BB direction;

[0086] Figure 52 This is a top view of the stirring gear and the first rotating member in the separated state provided in Embodiment 5 of this application;

[0087] Figure 53 for Figure 52 Cross-sectional view in the CC direction;

[0088] Figure 54 This is a schematic diagram of the developing apparatus provided in Embodiment 6 of this application;

[0089] Figure 55 This is an exploded view of the first end of the box provided in Embodiment 6 of this application;

[0090] Figure 56 This is a schematic diagram of the structure of the first rotating component provided in Embodiment 6 of this application;

[0091] Figure 57 This is a schematic diagram of the structure of the second rotating component provided in Embodiment 6 of this application;

[0092] Figure 58 This is a schematic diagram of the linkage provided in Embodiment 6 of this application;

[0093] Figure 59 This is a schematic diagram of the linkage between the first rotating component and the second rotating component provided in Embodiment 6 of this application;

[0094] Figure 60 This is a schematic diagram of the linkage between the first rotating component and the second rotating component provided in Embodiment 6 of this application;

[0095] Figure 61 This is a schematic diagram of the structure of the top cover provided in Embodiment 6 of this application;

[0096] Figure 62 This is a schematic diagram of the connection between the tested component and the translational component provided in Embodiment 6 of this application;

[0097] Figure 63 This is a schematic diagram of the structure of the second rotating component provided in Embodiment 7 of this application;

[0098] Figure 64 This is a schematic diagram of the structure of the second rotating component provided in Embodiment 7 of this application;

[0099] Figure 65 This is a schematic diagram of the structure of the first elastic component provided in Embodiment 7 of this application;

[0100] Figure 66 This is a schematic diagram of the structure in which the first elastic component and the second rotating component abut against each other, as provided in Embodiment 7 of this application;

[0101] Figure 67 This is a schematic diagram of the structure in which the first elastic component and the second rotating component abut against each other, as provided in Embodiment 7 of this application;

[0102] Figure 68 An exploded view of the first end of the box provided in Embodiment 8 of this application;

[0103] Figure 69 This is a schematic diagram of the structure of the first end of the box provided in Embodiment 8 of this application;

[0104] Figures 70-75 This is a schematic diagram of the structure of the first rotating component provided in Embodiment 8 of this application;

[0105] Figure 76 This is a schematic diagram of the structure of the first protective cover provided in Embodiment 8 of this application;

[0106] Figure 77 This is a schematic diagram of the translational component provided in Embodiment 8 of this application;

[0107] Figure 78 This is a schematic diagram of the structure of the first rotating component provided in Embodiment 8 of this application;

[0108] Figure 79 This is a schematic diagram of the developing apparatus provided in Embodiment 9 of this application;

[0109] Figure 80 This is a schematic diagram of the structure of the top cover provided in Embodiment 9 of this application;

[0110] Figure 81 An exploded view of the first end of the box provided in Embodiment 9 of this application;

[0111] Figure 82 This is a schematic diagram of the structure of the first rotating component provided in Embodiment 9 of this application;

[0112] Figure 83 for Figure 82 Another perspective;

[0113] Figure 84 This is a schematic diagram of the structure of the swinging component provided in Embodiment 9 of this application;

[0114] Figure 85 This is a schematic diagram of the structure of the tested component provided in Embodiment 9 of this application;

[0115] Figure 86 This is a structural schematic diagram of the second end of the box portion provided in Embodiment 9 of this application;

[0116] Figure 87 This is a three-dimensional structural diagram of the first end cover and translational component of the box body in an exploded state, as provided in Embodiment 10 of this application.

[0117] Figure 88 This is a three-dimensional structural diagram of the first end of the box provided in Embodiment 10 of this application;

[0118] Figure 89 A three-dimensional structural schematic diagram of the first protective cover provided in Embodiment 10 of this application;

[0119] Figure 90 This is a three-dimensional structural diagram of the first end of the housing of the developing apparatus provided in Embodiment 11 of this application;

[0120] Figure 91 This is a three-dimensional structural diagram of the second end of the developing device housing when the tested item is located in a non-testing position, as provided in Embodiment 11 of this application.

[0121] Figure 92 for Figure 91 A magnified view of the area at the position indicated by the dashed line.

[0122] Figure 93 This is a partially enlarged structural diagram of the second end of the developing device housing when the tested item is located in the detection position, as provided in Embodiment 11 of this application.

[0123] Figures 94-96 This is an exploded structural diagram of the first end of the box body provided in Embodiment 11 of this application;

[0124] Figure 97 and Figure 98 This is an exploded structural diagram of the second end of the box body provided in Embodiment 11 of this application;

[0125] Figure 99 This is a schematic diagram of the structure of the first rotating component provided in Embodiment 11 of this application;

[0126] Figure 100 This is a schematic diagram of the structure of the third rotating component provided in Embodiment 11 of this application;

[0127] Figure 101 A three-dimensional structural diagram of the translational member provided in Embodiment 11 of this application when it is located closest to the first end;

[0128] Figure 102 This is a three-dimensional structural diagram of the translational member provided in Embodiment 11 of this application when it is located at the position furthest from the first end;

[0129] Figure 103 This is a perspective view of the developing apparatus provided in Embodiment 12 of this application;

[0130] Figure 104 This is a three-dimensional structural diagram of the transmission assembly at the first end of the housing provided in Embodiment 12 of this application;

[0131] Figure 105 This is an exploded view of the first end of the box provided in Embodiment 12 of this application;

[0132] Figure 106 This is a three-dimensional structural diagram of the first rotating component provided in Embodiment 12 of this application;

[0133] Figure 107 for Figure 106 Another perspective;

[0134] Figure 108 This is a schematic diagram of the structure of the first protective cover provided in Embodiment 12 of this application;

[0135] Figure 109 This is a schematic diagram of the structure of the abutment member provided in Embodiment 12 of this application;

[0136] Figure 110 This is a schematic diagram of the structure of the top cover provided in Embodiment 12 of this application;

[0137] Figure 111 This is a schematic diagram of the structure of the translational component, the component under test, and the first rotating component provided in Embodiment 12 of this application;

[0138] Figure 112 This is a schematic diagram of the structure of the top cover facing the first end provided in Embodiment 13 of this application;

[0139] Figure 113 This is a schematic diagram of the structure of the first rotating component provided in Embodiment 13 of this application;

[0140] Figure 114 This is a structural schematic diagram of the first end of the box provided in Embodiment 13 of this application;

[0141] Figure 115 This is a schematic diagram of the structure of the first rotating component provided in Embodiment 14 of this application;

[0142] Figure 116 for Figure 115 Another perspective;

[0143] Figure 117 This is a schematic diagram of the translational component provided in Embodiment 14 of this application;

[0144] Figure 118 This is a three-dimensional structural diagram of the developing apparatus provided in Embodiment 15 of this application;

[0145] Figure 119 This is a three-dimensional structural diagram of the developing apparatus provided in Embodiment 15 of this application after the first cover and the cartridge body are separated;

[0146] Figure 120 A schematic diagram of the three-dimensional structure of the developing apparatus provided in Embodiment 15 of this application after the first cover and the cartridge body are separated. Figure 2 ;

[0147] Figure 121 This is a schematic diagram of the first end of the first rotating member when it meshes with the stirring gear, as provided in Embodiment 15 of this application;

[0148] Figure 122 This is a schematic diagram of the first end of the first rotating component when it disengages from the stirring gear, as provided in Embodiment 15 of this application.

[0149] Figure 123 This is a top view of the developing apparatus when the object to be tested is in the testing position, as provided in Embodiment 15 of this application;

[0150] Figure 124 This is a top view of the developing apparatus when the tested object is in the detection position after the first protective cover is hidden, as provided in Embodiment 15 of this application.

[0151] Figure 125 This is a top view of the developing apparatus when the tested item is in a non-detection position after the first protective cover is hidden, as provided in Embodiment 15 of this application.

[0152] Figure 126 and Figure 127 This is an exploded structural diagram of the first rotating component and the first protective cover provided in Embodiment 15 of this application;

[0153] Figure 128 This is an exploded structural diagram of the first rotating component and the first protective cover provided in Embodiment 16 of this application;

[0154] Figure 129 This is a three-dimensional structural diagram of the first rotating member and the first protective cover provided in Embodiment 16 of this application;

[0155] Figure 130 This is a three-dimensional structural schematic diagram of the developing apparatus provided in Embodiment 17 of this application;

[0156] Figure 131 An exploded top view of the developing apparatus provided in Embodiment 17 of this application when the swinging component is in the first swinging position;

[0157] Figure 132 An exploded top view of the developing apparatus provided in Embodiment 17 of this application when the swinging member is in the second swinging position;

[0158] Figure 133 This is a three-dimensional structural diagram of the developing apparatus provided in Embodiment 17 of this application, showing the oscillating component and the cartridge in a disassembled state.

[0159] Figure 134 This is a three-dimensional structural diagram of the swing component provided in Embodiment 17 of this application;

[0160] Figure 135 This is a schematic diagram of the structure of the first end of the box body after the first protective cover is hidden, as provided in Embodiment 18 of this application;

[0161] Figure 136 This is a schematic diagram of the structure of the first protective cover provided in Embodiment 18 of this application;

[0162] Figure 137 This is a structural schematic diagram of the first cover provided in Embodiment 18 of this application from another perspective;

[0163] Figure 138 This is a schematic diagram of the structure of the abutment provided in Embodiment 18 of this application;

[0164] Figure 139 This is a schematic diagram of the structure of the second end provided in Embodiment 18 of this application;

[0165] Figure 140 and Figure 141 This is a schematic diagram of the structure of the first rotating component provided in Embodiment 18 of this application;

[0166] Figure 142 This is a schematic diagram of the structure of the top cover provided in Embodiment 18 of this application;

[0167] Figure 143 This is an exploded view of the developing apparatus provided in Embodiment 18 of this application;

[0168] Figure 144 This is a schematic diagram of the structure of the swinging component provided in Embodiment 18 of this application;

[0169] Figure 145 This is a schematic diagram of the structure of the swinging component installed in the box body according to Embodiment 18 of this application;

[0170] Figure 146 This is a three-dimensional structural diagram of the developing apparatus provided in Embodiment 6 of this application;

[0171] Figure 147 This is a three-dimensional structural diagram of the translational component and the component under test in a disassembled state, as provided in Embodiment 6 of this application.

[0172] Figure 148 This is a top view of the developing apparatus provided in Embodiment 19 of this application, showing the first protective cover hidden when the tested item is in the testing position.

[0173] Figure 149 A top view of the developing apparatus after the first protective cover is hidden when the test piece is in a non-testing position, as provided in Embodiment 19 of this application;

[0174] Figure 150 This is a front view of the developing apparatus with the first protective cover hidden, as provided in Embodiment 19 of this application;

[0175] Figure 151 This is a schematic diagram of the structure between the translational member, the pivotal member, and the tested member provided in Embodiment 19 of this application;

[0176] Figure 152 This is an exploded structural diagram of the translational member, pivotal member, and tested member provided in Embodiment 19 of this application;

[0177] Figure 153 This is a partially enlarged structural diagram of the second end of the developing apparatus housing when the tested item is located in a non-testing position, as provided in Embodiment 11 of this application.

[0178] Figure 154 This is a partially enlarged structural diagram of the second end of the developing device housing when the tested item is located in the detection position, as provided in Embodiment 11 of this application.

[0179] Figure 155 and Figure 156 This is an exploded structural diagram of the second end of the box body provided in Embodiment 11 of this application;

[0180] Figure 157 This is a three-dimensional structural schematic diagram of the developing apparatus provided in Embodiment 20 of this application;

[0181] Figure 158 This is an exploded structural diagram of the first end of the box body provided in Embodiment 20 of this application;

[0182] Figure 159 This is a three-dimensional structural diagram of the second end of the box body provided in Embodiment 20 of this application;

[0183] Figure 160This is an exploded structural diagram of the second end of the box body provided in Embodiment 20 of this application;

[0184] Figure 161 This is a schematic diagram of the transmission unit, the tested component, and the stirring shaft provided in Embodiment 20 of this application;

[0185] Figure 162 This is a schematic diagram of the transmission unit and the tested component provided in Embodiment 20 of this application;

[0186] Figure 163 This is a three-dimensional structural diagram of the first connector provided in Embodiment 20 of this application;

[0187] Figure 164 and Figure 165 This is a three-dimensional structural diagram of the powder dispensing blade provided in Embodiment 20 of this application;

[0188] Figure 166 This is a cross-sectional view of the box body provided in Embodiment 20 of this application;

[0189] Figure 167 This is a three-dimensional structural diagram of the power receiving device provided in Embodiment 20 of this application;

[0190] Figure 168 This is a side view of the second end of the developing apparatus and the detection element within the image forming apparatus provided in Embodiment 20 of this application;

[0191] Figure 169 This is a three-dimensional structural diagram of the third rotating component and the first protective cover provided in Embodiment 20 of this application;

[0192] Figure 170 This is a three-dimensional structural diagram of the driving component provided in Embodiment 20 of this application;

[0193] Figure 171 This is a three-dimensional structural diagram of the test piece provided in Embodiment 20 of this application;

[0194] Figure 172 This is a three-dimensional structural diagram of the translational member and the third rotating member provided in Embodiment 20 of this application;

[0195] Figure 173 This is an exploded structural diagram of the second end of the box body provided in Embodiment 20 of this application;

[0196] Figure 174 This is a structural schematic diagram of the second end of the box provided in Embodiment 20 of this application;

[0197] Figure 175 This is a schematic diagram of the structure of the second connector provided in Embodiment 20 of this application;

[0198] Figure 176and Figure 177 This is a schematic diagram of the structure of the tested component provided in Embodiment 20 of this application;

[0199] Figure 178 This is a schematic diagram of the structure of the driving component provided in Embodiment 20 of this application;

[0200] Figure 179 This is a three-dimensional structural diagram of the developing apparatus provided in Embodiment 21 of this application;

[0201] Figure 180 This is a schematic diagram of the structure of the first end of the box body after the first protective cover is hidden, as provided in Embodiment 21 of this application;

[0202] Figure 181 This is a schematic diagram of the structure of the first protective cover provided in Embodiment 21 of this application;

[0203] Figure 182 This is an exploded view of the developing apparatus provided in Embodiment 21 of this application;

[0204] Figure 183 This is an exploded view of the developing apparatus behind the hidden stirring rack provided in Embodiment 21 of this application;

[0205] Figure 184 This is a three-dimensional structural diagram of the stirring gear, the third rotating component, and the pivoting component provided in Embodiment 21 of this application;

[0206] Figure 185 This is an exploded structural diagram of the pivot member provided in Embodiment 21 of this application;

[0207] Figure 186 This is a three-dimensional structural diagram of the second end of the box provided in Embodiment 21 of this application;

[0208] Figure 187 This is a three-dimensional structural diagram of the test piece provided in Embodiment 21 of this application;

[0209] Figure 188 This is a three-dimensional structural schematic diagram of the developing apparatus provided in Embodiment 17 of this application;

[0210] Figure 189 This is a three-dimensional structural diagram of the tested component and the oscillating component in a disassembled state, as provided in Embodiment 17 of this application.

[0211] Figure 190 This is a three-dimensional structural diagram of the tested component and the oscillating component in a disassembled state, as provided in Embodiment 17 of this application.

[0212] Figure 191 This is a three-dimensional structural schematic diagram of the developing apparatus provided in Embodiment 17 of this application;

[0213] Figure 192 This is a three-dimensional structural diagram of the tested component and the oscillating component in a disassembled state, as provided in Embodiment 17 of this application.

[0214] Figure 193 This is a three-dimensional structural diagram of the tested component and the oscillating component in a disassembled state, as provided in Embodiment 17 of this application.

[0215] Figure 194 and Figure 195 This is a schematic diagram of the developing apparatus provided in Embodiment 22 of this application;

[0216] Figure 196 This is a partially exploded view of the first end of the developing apparatus provided in Embodiment 22 of this application;

[0217] Figure 197 This is a partial structural diagram of the first end of the developing apparatus provided in Embodiment 22 of this application;

[0218] Figure 198 for Figure 197 A magnified view of the area indicated by the dashed line.

[0219] Figure 199 This is a schematic diagram of the structure of the first rotating component provided in Embodiment 22 of this application;

[0220] Figure 200 This is a partially exploded view of the second end of the developing apparatus provided in Embodiment 22 of this application;

[0221] Figure 201 This is a schematic diagram of the structure of the transition piece provided in Embodiment 22 of this application;

[0222] Figure 202 and Figure 203 This is a schematic diagram of the developing apparatus and the testing element provided in Embodiment 23 of this application;

[0223] Figure 204 This is a schematic diagram of the developing apparatus provided in Embodiment 23 of this application;

[0224] Figure 205 and Figure 206 This is a schematic diagram of the structure of the first rotating component provided in Embodiment 23 of this application;

[0225] Figure 207 and Figure 208 This is a schematic diagram of the structure of the stirring gear provided in Embodiment 23 of this application;

[0226] Figure 209 This is a partially enlarged schematic diagram of the developing apparatus provided in Embodiment 23 of this application. Detailed Implementation

[0227] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0228] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0229] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In this application, the first direction is the left-right direction of the developing apparatus cassette (i.e., the left-right direction). Figure 194 The first direction is the direction of A1 and A2 in the diagram), and the second direction is the front-back direction of the box (i.e., the direction of A1 and A2 in the diagram). Figure 194 The B1 and B2 directions in the diagram), and the third direction is the vertical direction of the box (i.e., the vertical direction). Figure 194 (in the C1 and C2 directions).

[0230] The terms “first,” “second,” and “third” (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0231] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or display that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or display.

[0232] In related technologies, developing apparatuses are equipped with numerous transmission structures, enabling the inspected object to perform complex contact actions. However, the large number of transmission structures located at the non-driving end of the developing apparatus—that is, the end of the developing apparatus that does not receive the force from the image forming apparatus—increases the overall size of the developing apparatus. The numerous transmission structures on the non-driving end also make miniaturization of the developing apparatus quite difficult.

[0233] After repeated consideration and verification, the inventors of this application discovered that if a transmission component is provided at the first end of the developing apparatus's housing, this transmission component can receive power from the image forming apparatus and drive the developing component of the developing apparatus to move. The object to be detected is wholly or partially located at the second end of the housing, and the transmission component can drive the object to be detected to move between a detection position and a non-detection position via a transmission unit. In this way, the image forming apparatus can acquire information from the developing apparatus, while simultaneously reducing the transmission structure at the second end of the housing, facilitating the miniaturization of the developing apparatus.

[0234] In view of this, the inventors of this application have designed a developing apparatus in which a transmission component is disposed at the first end of the housing, and the workpiece to be tested is disposed wholly or partially at the second end of the housing. The transmission component and the workpiece to be tested are connected by a transmission unit. When the transmission component receives power from the image forming apparatus, it can drive the developing component to move. Simultaneously, the transmission component can also drive the workpiece to move between a detection position and a non-detection position via the transmission unit. This reduces the need for transmission structures at the second end of the housing, facilitating the miniaturization of the developing apparatus.

[0235] The technical solution of the developing apparatus provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0236] Example 1:

[0237] like Figures 1.1-1.27 As shown, this embodiment discloses a developing apparatus that can be detachably mounted on a drum assembly in an image forming apparatus. The developing apparatus includes a housing 100, a developing assembly, a transmission assembly, a transmission unit, and a test piece 500.

[0238] This embodiment also discloses an image forming apparatus, which includes a mounting chamber for mounting a developing apparatus. The mounting chamber contains a power supply terminal and a detection element. The power supply terminal supplies electrical energy to the developing apparatus. The image forming apparatus uses, for example, electrophotographic imaging processing to form an image on recording material. The image forming apparatus includes, for example, an electrophotographic copier, an electrophotographic printer (LED printer, laser printer, etc.), and an electrophotographic printer-type fax machine. The image forming apparatus includes a power output shaft for transmitting the driving force of the image forming apparatus to the developing apparatus 1, causing the developing apparatus 1 to operate. The developing apparatus 1 can be detachably mounted to the image forming apparatus together with the drum assembly 2 while mounted on the drum assembly 2. A detection element 10 for detecting the developing apparatus 1 is provided within the image forming apparatus. The detection element 10 moves from an initial position to a triggered position after being triggered by the developing apparatus 1.

[0239] like Figure 1.4 and Figure 1.5As shown, the developing apparatus 1 is detachably mounted on the drum assembly 2, which contains a photosensitive element, namely a photosensitive drum 60. The drum assembly 2 includes a right frame 30, a left frame 40, a front frame 50, a rear frame 60, a bottom frame 70, and a photosensitive drum 80. In a first direction, the right frame 30 and the left frame 40 are positioned opposite each other; in a second direction, the front frame 50 and the rear frame 60 are positioned opposite each other. In the first direction, the bottom frame 70 is located between the right frame 30 and the left frame 40; in the second direction, the bottom frame 70 is located between the front frame 50 and the rear frame 60. In the second direction, the photosensitive drum 80 is closer to the front frame 50 than the rear frame 60, and the photosensitive drum 80 is at least partially covered by the front frame 50, which provides protection for the photosensitive drum 80. The photosensitive drum 80 receives the developer provided by the developing apparatus 1, forms an electrostatic latent image, and displays the image on the imaging film. A drum handle 61 is located on the rear frame 60 and can be held by the user. The drum assembly 2 also includes a first guide portion 31 and a second guide portion 41. The first guide portion 31 is located on the right frame 30, and the second guide portion 41 is located on the left frame 40. The first guide portion 31 and the second guide portion 41 are used to guide the developing device 1 during the installation of the developing device 1 onto the drum assembly 2. The bottom frame 70 is provided with a first force-applying member 71, a second force-applying member 72, a first placement hole 73, a second placement hole 74, and a locking member 75. Both the first force-applying member 71 and the second force-applying member 72 are provided with force-applying blocks and elastic elements such as compression springs, or both the first force-applying member 71 and the second force-applying member 72 are elastic force-applying blocks. Both the first force-applying member 71 and the second force-applying member 72 can move relative to the drum assembly 2 in a second direction. In the first direction, the first force-applying member 71 is closer to the right frame 30 relative to the left frame 40, and the second force-applying member 72 is closer to the left frame 40 relative to the right frame 30. In the second direction, the first force-applying member 71 and the second force-applying member 72 are closer to the rear frame 60 relative to the front frame 50. Both the first placement hole 73 and the second placement hole 74 penetrate the bottom frame 70 in a third direction. In the first direction, the first placement hole 73 is closer to the right frame 30 than the left frame 40. The locking member 75 is used to lock the developing apparatus 1. With the drum assembly 2 installed in the developing apparatus 1, the right frame 30 is adjacent to the first end 110 of the housing 100, and the left frame 40 is adjacent to the second end 120 of the housing 100.

[0240] The cartridge 100 has a cavity for containing developer. The cartridge 100 has a first end 110 and a second end 120 oppositely disposed in a first direction; a third end 130 and a fourth end 140 oppositely disposed in a second direction; and a fifth end 150 and a sixth end 160 oppositely disposed in a third direction. A powder outlet is provided on the cartridge 100, located at the third end 130, and the powder outlet exposes the circumferential surface of the developing roller 210. A handle 141 is provided on the cartridge 100, located at the fourth end 140.

[0241] An alternative embodiment, such as Figure 1.6 and Figure 1.8 As shown, a guide plate 162 is provided at the sixth end 160 of the housing 100. The guide plate 162 extends along the first direction and is located between the first end 110 and the second end 120. When the developing apparatus is installed on the drum assembly and both are installed together on the image forming apparatus, the guide plate 162 is exposed through the second placement hole 74 on the drum assembly. When the image forming apparatus is in operation, the guide plate 162 is used to guide the sheet.

[0242] In one optional embodiment, the box body 100 is provided with a second groove 131, which is a plurality of grooves arranged along a first direction and recessed in a third direction. The second groove 131 is used to strengthen the box body 100.

[0243] The developing assembly includes a developing roller 210 rotatably disposed within a cartridge 100, located at the third end 130 of the cartridge 100, with its axial direction extending along a first direction. Schematably, the developing assembly also includes a powder delivery roller 260 and a stirring frame 270, all of which are rotatably mounted within a receiving cavity between the first end 110 and the second end 120. The axial directions of the developing roller 210, powder delivery roller 260, and stirring frame 270 all extend along the first direction, and their rotation axes also extend along the first direction. The developing roller 210 is disposed at the powder outlet. The powder delivery roller 260 is disposed adjacent to the developing roller 210. The powder delivery roller 260 is closer to the fourth end 140 of the cartridge 100 than the developing roller 210. The stirring rack 270 includes a stirring shaft and stirring blades. The two ends of the stirring shaft are rotatably supported by the first end 110 and the second end 120 of the housing 100. The stirring blades are fixedly mounted on the stirring shaft and move together with the stirring shaft. The stirring rack 270 is used to stir the developer in the containment cavity to prevent the developer from clumping.

[0244] like Figure 1.2 As shown, a partition wall 161 is provided on the side wall of the sixth end 160 of the housing 100. The partition wall 161 rises upward along the third direction. A developer passage 193 is formed between the partition wall 161 and the side wall of the fifth end 150 of the housing 100 for the developer to pass through. The developer passage 193 connects the developing chamber 192 and the developer holding chamber 191. The partition wall 161 divides the cavity into the developing chamber 192 and the developer holding chamber 191. In the second direction, the developing chamber 192 is closer to the powder outlet than the developer holding chamber 191. The developing roller 210 and the powder feeding roller 260 are arranged in the developing chamber 192, and the stirring rack 270 is arranged in the developer holding chamber 191.

[0245] like Figure 1.9 and Figure 1.10 As shown, the developing roller 210 includes a roller body 211 and a roller shaft 212. Both the roller body 211 and the roller shaft 212 extend along a first direction. The roller body 211 is sleeved on the roller shaft 212 and covers a portion of the roller shaft 212. The roller body 211 is used to receive the developer transferred by the powder feeding roller 260 and transfer the developer to the photosensitive drum 80. The roller shaft 212 is used to receive the power that causes the developing roller 210 to rotate. A D-shaped opening (not shown) is provided on the end of the roller shaft 212 near the first end 110 in the first direction. The roller body 211 has a rubber component. When the roller body 211 contacts the powder discharge blade 290, the rubber deformation at the contact point of the roller body 211 is uniform.

[0246] like Figure 1.7 , Figure 1.9 and Figure 1.10 As shown, the developing apparatus also includes a powder exiting blade 290, which is used to contact the developing roller 210 and control the thickness of the developer layer on the roller body 211 of the developing roller 210. The powder exiting blade 290 extends along a first direction and includes a blade holder 280 and a blade 250. The blade 250 is connected to the blade holder 280 by welding or gluing, etc. In this embodiment, welding is preferably used to fix the blade 250 to the blade holder 280.

[0247] The blade holder 280 includes a second mounting portion 281 and a third mounting portion 282. The second mounting portion 281 extends generally along a second direction, and the third mounting portion 282 is bent based on the second mounting portion 281 and extends generally along a third direction. The second mounting portion 281 covers the second groove 131, that is, the second mounting portion 281 is supported by the second groove 131 in the third direction. The third mounting portion 282 is provided with powder dispensing blade mounting holes 2823. In this embodiment, there are two powder dispensing blade mounting holes 2823, namely a fourth mounting hole 2821 and a fifth mounting hole 2822. In other embodiments, the powder dispensing blade mounting holes 2823 can be set according to actual needs. Both the fourth mounting hole 2821 and the fifth mounting hole 2822 penetrate the third mounting portion 282 in the second direction, and the blade holder 280 can be fixedly mounted on the housing 100 through the powder dispensing blade mounting holes 2823. In the first direction, the blade 250 is located between the fourth mounting hole 2821 and the fifth mounting hole 2822. The blade 250 extends generally in a third direction and includes a welding portion 251, a contact portion 252, and a bending portion 253. In the third direction, the welding portion 251 is located above the contact portion 252 and the bending portion 253. The blade 250 is fixedly connected to the blade holder 280 through the welding portion 251. The contact portion 252 is used to contact the developing roller 210 and control the thickness of the developer layer on the roller body 211 of the developing roller 210 to ensure that the developer delivered by the developing roller 210 is uniform each time. The bending portion 253 is formed by bending the contact portion 252. In order to better guide the developer, the bending portion 253 in this embodiment is longer than the bending portion 253 on the currently common powder discharge blade 290. The included angle between the bending portion 253 and the contact portion 252 is greater than 90°. In other embodiments, the bending portion 253 may not be lengthened or may not be provided.

[0248] It is known that in this embodiment, the powder discharge blade 290 is a steel blade, that is, both the blade holder 280 and the blade 250 are made of steel. In some embodiments, the powder discharge blade 290 may be made of other materials.

[0249] It is known that in order to ensure that the blade 250 is more stably welded to the tool holder 280, spot welding is used in this embodiment to ensure that the welding marks are more uniform. Other welding methods may be used in other embodiments.

[0250] like Figure 1.10 As shown, the developing apparatus is also equipped with a sealing element, which can be installed on the cartridge 100 by adhesive. The sealing element is used to prevent the developer inside the cartridge 100 from leaking out.

[0251] In this embodiment, the sealing elements include a first sealing element 7001, a second sealing element 7002, and a third sealing element 7003. In the third direction, the first sealing element 7001 is located above the second sealing element 7002 and the third sealing element 7003. The first sealing element 7001 is a block extending along a first direction. The length of the first sealing element 7001 in the first direction is approximately equal to the length of the roller body 211 of the developing roller 210. In the second direction, the first sealing element 7001 is closer to the side wall of the third end 130 of the cartridge 100 than the powder discharge blade 290. The first sealing element 7001 is used to prevent developer from leaking out between the side wall of the third end 130 of the cartridge 100 and the powder discharge blade 290. In this embodiment, the first sealing element 7001 includes a sponge and a felt, and the sponge and the felt are compressed by the powder discharge blade 290 with the same amount of compression. The second seal 7002 is closer to the first end 110 in a first direction relative to the second end 120. The second seal 7002 contacts the end of the roller body 211 closest to the first end 110 in the first direction. The third seal 7003 is closer to the second end 120 in a first direction relative to the first end 110. The third seal 7003 contacts the end of the roller body 211 closest to the second end 120 in the first direction. Both the second seal 7002 and the third seal 7003 extend along the rotation direction of the developing roller 210 and are used to prevent developer leakage from both ends of the developing roller 210. In the radial direction of the roller body 211, the roller body 211 at least partially overlaps with the second seal 7002, and the roller body 211 at least partially overlaps with the third seal 7003. In this embodiment, both the second seal 7002 and the third seal 7003 include felt and sponge, which are flush in the rotation direction of the developing roller 210. This embodiment does not limit the number of seals or the composition of the seals; these can be set according to actual needs.

[0252] For example, such as Figure 1.11 As shown, the developing apparatus also includes a first mounting bracket 117, which is detachably mounted on the first end 110. In the second direction, the first mounting bracket 117 is closer to the third end 130 than the fourth end 140. The first mounting bracket 117 is used to support the developing roller 210 and the powder feeding roller 260. The first mounting bracket 117 includes a developing roller support hole and a powder feeding roller support hole, both of which penetrate the first mounting bracket 117 in the first direction. The end of the developing roller 210 near the first end 110 passes through the developing roller support hole, thereby fixing the developing gear 330 on the roller shaft. The end of the powder feeding roller 260 near the first end 110 passes through the powder feeding roller support hole, thereby fixing the powder feeding gear 340 on the powder feeding roller 260 shaft.

[0253] In other embodiments of the first mounting bracket 117, such as Figures 1.20-1.25As shown, in addition to the developing roller support hole 1171 and the powder feeding roller support hole 1172, the first mounting bracket 117 is also provided with a first positioning hole 1174, a second positioning hole 1175 and a positioning buckle 1176. The first positioning hole 1174 and the second positioning hole 1175 are arranged on the first mounting bracket 117 on both sides of the rotation axis of the powder feeding roller 260 about the rotation axis of the powder feeding roller 260. The first end 110 of the housing 100 is integrally formed with a positioning protrusion 116 that can be inserted into the first positioning hole 1174 and the second positioning hole 1175. The positioning buckle 1176 is integrally formed at the rear end of the first mounting bracket 117. The positioning buckle 1176 protrudes to the left from the first mounting bracket 117. The first end 110 of the box body 100 has an integrally formed fastening part 118. The positioning buckle 1176 can be fastened to the fastening part 118 of the first end 110 of the box body 100, thereby fixing the first mounting bracket 117 to the first end 110 of the box body 100.

[0254] The first mounting bracket 117 is also provided with a fourth recess 1173. A drive support shaft 1101 is integrally formed on the first end 110 of the housing 100. The drive support shaft 1101 protrudes to the right along the first direction from the first end 110 of the housing 100. The power receiving device 320 is rotatably mounted on the drive support shaft 1101 and supported by the drive support shaft 1101. The fourth recess 1173 avoids the drive support shaft 1101, so as to prevent the first mounting bracket 117 from interfering with the drive support shaft 1101.

[0255] like Figure 1.1 and Figure 1.3 As shown, the developing apparatus also includes a conductive component 900, which includes a conductive element 910 mounted on the second end 120 of the housing 100. The conductive element 910 has a first electrical contact 911, a second electrical contact 912, and a third electrical contact. The first electrical contact 911 is used to make electrical contact with a power supply terminal in the image forming apparatus, the second electrical contact 912 is used to make electrical contact with the developing roller 210, and the third electrical contact is used to make electrical contact with the powder feeding roller 260, thereby transmitting the electrical energy provided by the image forming apparatus to the developing roller 210 and the powder feeding roller 260.

[0256] like Figure 1.3As shown, the conductive component 900 also includes a support frame 913, and a conductive steel sheet can be used as the conductive element 910. The support frame 913 is detachably fixed to the second end 120 of the housing 100 by fasteners or snaps. The support frame 913 is provided with a first hole and a second hole. The left end of the developing roller 210 is inserted into the first hole, and the left end of the powder feeding roller 260 is inserted into the second hole. The left end face of the support frame 913 is integrally formed with a guide protrusion 9131. The left end face of the guide protrusion 9131 includes a first guide surface 91311 and a second guide surface 91312. In the second direction, the first guide surface 91311 is located in front of the second guide surface 91312, and the front end of the first guide surface 91311 is further to the right than the rear end. The front end of the second guide surface 91312 is connected to the rear end of the first guide surface 91311, and the front end of the second guide surface 91312 is further to the left than the rear end. The support frame 913 has a third mounting hole 91313. The first electrical contact portion 911 of the conductive element 910 is located inside the third mounting hole 91313 and is exposed to the outside of the third mounting hole 91313. The first electrical contact portion 911 is inclined and parallel to the second guide surface 91312.

[0257] With the above configuration, during the installation of the developing apparatus into the image forming apparatus, the power supply terminal in the image forming apparatus first passes through the first guide surface 91311. Since the front end of the first guide surface 91311 is further to the right than the rear end, the power supply terminal is squeezed and undergoes elastic deformation. When the developing apparatus is installed in place, the power supply terminal contacts the second guide surface 91312 and is pressed against the first electrical contact portion 911 under the action of elasticity. Since the front end of the second guide surface 91312 is further to the left than the rear end, it can prevent the power supply terminal from swinging forward during the operation of the developing apparatus and the image forming apparatus, so that the power supply terminal remains pressed against the first electrical contact portion 911 and prevents poor contact.

[0258] like Figure 1.19 As shown, in another implementation of the conductive component 900, the first guiding surface 91311 is perpendicular to the first direction, and the front end of the second guiding surface 91312 is located to the left of the first guiding surface 91311, so that there is a step 91314 between the second guiding surface 91312 and the first guiding surface 91311.

[0259] A transmission assembly is disposed at the first end 110 and is configured to drive the developing assembly to move after receiving power output from the image forming apparatus. Specifically, the transmission assembly includes a power receiving device 320 rotatably mounted on the first end 110 of the housing 100, the rotation axis of which is parallel to a first direction. The power receiving device 320 includes a drive gear 322 and a power receiving part 321, the drive gear 322 being located on the side of the power receiving part 321 facing the first end 110 and coaxially arranged with the power receiving part 321. The number of drive gears 322 can be one or more, depending on the actual needs of those skilled in the art. The drive gear 322 can be fixed to the power receiving part 321 by means of one-piece molding or fastening with fasteners, etc., without limitation. It is worth mentioning that the power receiving part 321 is used to connect to the power output shaft on the image forming apparatus to receive power output from the image forming apparatus.

[0260] The transmission assembly also includes a developing gear 330, a powder feeding gear 340, and a stirring gear 310 rotatably mounted on the first end 110. The developing gear 330 is fixedly connected to the end of the developing roller 210 near the first end 110 of the housing 100. The powder feeding gear 340 is fixedly connected to the end of the powder feeding roller 260 near the first end 110 of the housing 100. The stirring gear 310 is fixedly connected to the end of the stirring shaft near the first end 110 of the housing 100. The number of stirring gears 310 can be one or more. When there are multiple stirring gears 310, they are coaxially arranged, and the diameters of the multiple stirring gears 310 can be different.

[0261] The rotation axis of the power receiving device 320 is closer to the fifth end 150 and the fourth end 140 of the cartridge 100 than the rotation axis of the developing roller 210, the rotation axis of the power receiving device 320 is closer to the fifth end 150 and the fourth end 140 of the cartridge 100 than the rotation axis of the powder feeding roller 260, and the rotation axis of the power receiving device 320 is closer to the third end 130 and the fifth end 150 of the cartridge 100 than the rotation axis of the stirring rack 270.

[0262] As an optional embodiment, when viewed from the first direction, the blade holder 280 of the powder discharge blade is approximately L-shaped. If the L-shaped blade holder 280 is arranged into a complete rectangle, the rotation axis of the power receiving device 320 of the developing apparatus is not within the rectangular range, and in this embodiment, the power receiving device 320 and the powder discharge blade do not completely overlap.

[0263] As an optional embodiment, the transmission assembly further includes an idler wheel 350, which is rotatably supported by the first end 110 of the housing 100. In other embodiments, a first cover 610 is provided on the first end 110, and the idler wheel 350 can also be rotatably supported by the first cover 610. The axis of rotation of the idler wheel 350 is parallel to the first direction. Those skilled in the art can set the number, size, and specific position of the idler wheels 350 as needed, and no unique limitation is made here.

[0264] The developing gear 330, powder feeding gear 340, and stirring gear 310 can directly mesh with the drive gear 322. Alternatively, the drive gear 322 can mesh with one or more of the developing gear 330, powder feeding gear 340, and stirring gear 310 via an idler gear 350. In other embodiments, the drive gear 322 can also drive the developing gear 330, powder feeding gear 340, and stirring gear 310 to rotate via belt drive or friction drive, etc., without limitation.

[0265] In some embodiments, such as Figures 1.13-1.18 As shown, a first cover 610 is installed at the first end 110 of the box body 100, and a second cover 620 is installed at the second end 120 of the box body 100. The second cover 620 covers at least part of the second end 120 of the box body 100. The rear end of the first cover 610 has a first forced push protrusion 616 integrally formed, and the rear end of the second cover 620 has a second forced push protrusion 629 integrally formed.

[0266] After the developing device is installed on the drum assembly, the first forced push protrusion 616 and the second forced push protrusion 629 contact the pusher on the drum assembly and are subjected to the forward pushing force provided by the pusher. This causes the first forced push protrusion 616 and the second forced push protrusion 629 to move the developing device forward as a whole, so that the developing device drives the developing roller 210 to abut against the photosensitive drum 80 on the drum assembly, ensuring close contact between the developing roller 210 and the photosensitive drum 80.

[0267] The first cover 610 is also provided with a second recess 617, which is located in the second direction between the rotation axis of the stirring gear 310 and the first forced push protrusion 616. The drum assembly includes a separation lever 20, which is rotatable about a rotation axis parallel to the first direction. The separation lever 20 includes an operating part 21 and an actuating part 22. The operating part 21 is located on the front side of the rotation axis of the separation lever 20, and the actuating part 22 is located on the rear side of the rotation axis of the separation lever 20. The operating part 21 is used to be pressed by the user, and the actuating part 22 is used to contact the developing device and lift the developing device upward.

[0268] When the developing device is installed on the drum assembly, the projection of the second recess 617 in the first direction coincides with the projection of the movement trajectory of the actuating part 22 on the drum assembly in the first direction. Therefore, if the user moves the separation lever 20 on the drum assembly, the actuating part 22 will move within the second recess 617 and will not come into contact with the developing device, thus preventing the developing device from being lifted upward. This avoids the separation lever 20 from frequently overcoming the gravity of the developing device and deforming.

[0269] The second cover 620 is provided with a third recess 6201, and the second end 120 of the cartridge 100 is provided with a powder filling port 1206. The developer is filled into the cartridge 100 through the powder filling port 1206. A sealing cap 1207 for sealing the powder filling port 1206 is installed on the powder filling port 1206. The projection of at least part of the powder filling port 1206 and at least part of the sealing cap 1207 in the first direction coincides with the projection of at least part of the third recess 6201 in the first direction, so that the sealing cap 1207 can be removed without disassembling the second cover 620.

[0270] A sealing ring 6202 is integrally formed on the second cover 620. The sealing ring 6202 is integrally formed and protrudes to the right from the right end of the second cover 620. A stirring rack support hole 1205 for supporting the rotation of the stirring rack 270 is integrally formed on the second end 120 of the box body 100. The stirring rack support hole 1205 is a through hole. A sealing element is installed in the stirring rack support hole 1205. The sealing element is a ring-shaped element fitted on the left end of the stirring rack 270. The sealing element is made of sponge. The sealing ring 6202 is inserted into the stirring rack support hole 1205 and abuts against the sealing element, thereby preventing the sealing element from coming out of the stirring rack support hole 1205 to the left.

[0271] Indicative, such as Figure 1.8 and Figure 1.12 As shown, the developing apparatus also includes an identification component, which includes a storage medium 820, an electrical contact surface 810, and a bracket 830. The storage medium 820 is used to store data, and the electrical contact surface 810 is used to contact and electrically connect with the identification contacts within the image forming apparatus. The bracket 830 is detachably mounted on the housing 100, and the storage medium 820 and the electrical contact surface 810 are electrically connected and both mounted on the bracket 830. The electrical contact surface 810 is closer to the rear side of the housing 100 than the central axis of the power receiving device 320. Exemplarily, when the developing apparatus is mounted to the drum assembly, the storage medium 820 is exposed through a first placement hole 73 on the drum assembly and contacts the image forming apparatus.

[0272] like Figure 1.26 and Figure 1.27As shown, a bracket 830 is provided on the drum assembly in the first direction near the right frame 30, that is, the bracket 830 is closer to the right frame 30 than the left frame 40. A storage medium 820 is detachably mounted on the bracket 830. The storage medium 820 includes an electrical contact surface 810 electrically connected to it. The electrical contact surface 810 can contact the image forming apparatus. The storage medium 820 is used to store information from the developing apparatus. When the developing apparatus is installed on the drum assembly, the developing apparatus and the drum assembly are installed together on the image forming apparatus. The electrical contact surface 810 of the storage medium 820 contacts the image forming apparatus and transmits the information from the developing apparatus to the image forming apparatus. In the first direction, the storage medium 820 is parallel to the second placement hole 74.

[0273] The tested component 500 is at least partially located at the second end 120. The tested component 500 is connected to the transmission assembly via a transmission unit. The tested component 500 is able to move between the testing position and the non-testing position.

[0274] Understandably, when the image forming apparatus outputs power to the power receiving device 320, driving the developing assembly to move, the transmission assembly can drive the detected object 500 to move between the detection position and the non-detection position via the transmission unit. It is worth noting that when the detected object 500 is in the detection position, it actuates the detection element of the image forming apparatus, causing the detection circuit within the image forming apparatus to generate an electrical signal, thus detecting the developing assembly. When the detected object 500 is in the non-detection position, the detection element of the image forming apparatus resets, and the generation of electrical signals within the image forming apparatus ceases.

[0275] The developing apparatus provided in this embodiment includes a housing 100, a developing assembly, a transmission assembly, a transmission unit, and a detected component 500. When the transmission assembly receives power output from the image forming apparatus and drives the developing assembly to move, the transmission assembly can drive the detected component 500 to move between a detection position and a non-detection position via the transmission unit, allowing the image forming apparatus to detect information from the developing apparatus. The transmission assembly is located at the first end 110 of the housing 100, and the detected component 500 is at least partially located at the second end 120 of the housing 100, reducing the space occupied by the transmission structure at the second end 120 of the housing 100 and facilitating the miniaturization of the developing apparatus.

[0276] Example 2

[0277] like Figures 2-18 As shown, this embodiment provides a display device.

[0278] like Figure 2 and Figure 3As shown, in one possible implementation, the transmission unit includes a first rotating member 410 and a transmission member. The first rotating member 410 is rotatably disposed at the first end 110 of the housing 100. The first rotating member 410 is connected to the transmission assembly and the transmission member respectively. The detected item 500 is connected to the transmission member.

[0279] Schematic illustration: A first support column is provided at the first end 110, and the axis of the first support column extends along a first direction. A first rotating member 410 is rotatably mounted on the first support column. The first rotating member 410 includes a gear portion 4104, which can mesh with a stirring gear 310. When the power receiving device 320 drives the stirring gear 310 to rotate, the stirring gear 310 can drive the first rotating member 410 to rotate around its own rotation axis through the gear portion 4104. When the first rotating member 410 rotates around its own rotation axis, it can drive a transmission member to move relative to the housing 100. The transmission member extends from the first end 110 of the housing 100 to the second end 120 of the housing 100, and the transmission member drives the tested item 500 to move relative to the housing 100.

[0280] In this structure, by setting a first rotating member 410 and a transmission member, when the image forming apparatus drives the transmission assembly to move, the transmission assembly can drive the first rotating member 410 to rotate. When the first rotating member 410 rotates, it drives the detected member 500 to move through the transmission member. When the detected member 500 moves to the detection position, the detected member 500 actuates the detection member of the image forming apparatus, and the detection circuit in the image forming apparatus generates an electrical signal, so that the image forming apparatus can obtain information from the developing apparatus.

[0281] In one possible implementation, the transmission member includes a translational member 420 extending along the first direction, the translational member 420 being capable of displacement in the first direction, and a first driven portion 421 being provided at one end of the translational member 420. At least one of the first rotating member 410 and the first driven portion 421 has a first transmission surface 403 inclined relative to the first direction. Specifically, the translational member 420 is capable of displacement relative to the housing 100 in the first direction.

[0282] When the transmission assembly drives the first rotating member 410 to rotate, under the action of the first transmission surface 403, the first rotating member 410 can apply a component force along the first direction to the translation member 420. This component force causes the translation member 420 to generate displacement relative to the box 100 in the first direction. In turn, it drives the detected item 50010 to move relative to the box 100.

[0283] For example, such as Figure 3 and Figure 6As shown, the first rotating member 410 is provided with a first disc portion 411, the first disc portion 411 is provided with a recess 4111, the first driven portion 421 abuts against the first disc portion 411 and the first driven portion 421 can extend into the recess 4111.

[0284] Schematic illustration: The translational member 420 forms a rod-like structure. Specifically, the translational member 420 includes a first rod portion 428, a second disc portion 429, and a first driven portion 421. The first rod portion 428 extends along a first direction. In this embodiment, the first rod portion 428 is cylindrical; in other embodiments, it may be prismatic or have an irregular cross-section (a cross-section perpendicular to the length direction of the first rod portion 428). The second disc portion 429 may be integrally formed on the end of the first rod portion 428 near the first end 110 of the housing 100. In this embodiment, the second disc portion 429 is disc-shaped; in other embodiments, it may be rectangular, parallelogram-shaped, or other shapes. The second disc portion 429 is coaxially arranged with the first rod portion 428, the stirring gear 310, and the stirring shaft 220. The first driven part 421 can be integrally formed on the side of the second disc part 429 away from the first end 110 of the box body 100 in the first direction. The first driven part 421 protrudes from the second disc part 429 in the direction away from the second disc part 429 along the first direction.

[0285] In this embodiment, the stirring shaft 220 is formed as a hollow columnar structure, and the first rod portion 428 is located inside the stirring shaft 220. The first rod portion 428 extends along a first direction and penetrates the housing 100 and the stirring shaft 220, and the first rod portion 428 and the stirring shaft 220 are in sliding engagement. The above arrangement helps to reduce the space occupied by the transmission component inside the housing 100.

[0286] In this embodiment, the gear portion 4104 is closer to the first end 110 of the housing 100 in the first direction than the first disc portion 411. The first disc portion 411 can be fixed to the gear portion 4104 by means of integral molding or key connection. In this embodiment, the first disc portion 411 is circular. In other embodiments, the first disc portion 411 can also be rectangular, parallelogram, or other suitable shapes.

[0287] like Figure 6 As shown, the recess 4111 can be a notch recessed along the radial direction of the first disk portion 411 and toward the central axis of the first disk portion 411. For example, there can be two recesses 4111, which are separated from each other in the circumferential direction of the first disk portion 411.

[0288] In this embodiment, the recess 4111 and the first driven portion 421 each have a first transmission surface 403, wherein the first transmission surface 403 on the first driven portion 421 is the side of the first driven portion 421 that is away from the second disk portion 429 in a first direction. Viewed along the first direction, the areas swept by the first driven portion 421 and the first transmission surface 403 on the recess 4111 during movement at least partially overlap. The first transmission surface 403 on the first driven portion 421 has opposing first and second edges. In the rotation direction of the first rotating member 410, the first edge is located upstream of the second edge (i.e., when the first rotating member 410 rotates in the rotation direction, the first transmission surface 403 on the recess 4111 passes the first edge first and then the second edge), and in the first direction, the first edge is closer to the first end 110 of the housing 100 than the second edge. In the first direction, the first edge of the first drive surface 403 on the recess 4111 is closer to the first end 110 of the housing 100 than the edge of the first drive surface 403 on the recess 4111, thereby preventing jamming between the first drive surface 403 on the recess 4111 and the first drive surface 403 on the first driven portion 421. In other embodiments, the first drive surface 403 may be provided only in one of the recess 4111 and the first driven portion 421. This embodiment does not limit the size of the angle between the first drive surface 403 and the first direction, and those skilled in the art can set it according to actual needs.

[0289] When the first driven part 421 extends into the recess 4111, the detected element 500 is in a non-detection position. As the first rotating member 410 rotates, under the action of the first transmission surface 403, the sidewall of the recess 4111 pushes against the first driven part 421 to push the first driven part 421 out of the recess 4111. At this time, the translational member 420 drives the detected element 500 to move from the non-detection position to the detection position. When the detected element 500 moves to the detection position, the detection circuit of the image forming apparatus generates an electrical signal, enabling the image forming apparatus to acquire information from the developing apparatus.

[0290] In one possible implementation, a third elastic element 750 is connected to the transmission member, and the third elastic element 750 is configured to keep the transmission member in contact with the first rotating member 410.

[0291] For example, the third elastic element 750 is connected between the second disc portion 429 and the stirring gear 310. In this embodiment, the third elastic element 750 can be a compression spring. When the first rotating member 410 rotates to the position where the recess 4111 corresponds to the position of the first driven portion 421, the driven portion extends into the interior of the recess 4111 under the elastic force of the third elastic element 750. At this time, the detected member 500 moves from the detection position to the non-detection position.

[0292] In one possible implementation, a first cover 610 is provided on the first end 110, a first positioning part 422 is provided on one end of the translation member 420, a positioning mating part 611 is provided on the first cover 610, and the first positioning part 422 extends into the positioning mating part 611 to restrict the rotation of the translation member 420.

[0293] The first cover 610 is detachably and fixedly installed to the first end 110 of the box body 100, covering the transmission component for protection. The first cover 610 can be fixed to the first end 110 of the box body 100 by fasteners or snap-fit ​​connections, which is not a single limitation. Schematic, the first positioning part 422 is integrally formed on the side of the second disc part 429 away from the first end 110 of the box body 100 in the first direction. The first positioning part 422 protrudes along the first direction; in this embodiment, the first positioning part 422 is a square protrusion. The positioning mating part 611 is a groove with a shape and size matching the first positioning part 422. Through the mating between the first positioning part 422 and the positioning mating part 611, the translational member 420 is prevented from rotating due to the friction between the first rod part 428 and the stirring shaft 220, thereby ensuring that the sidewall of the recess 4111 can reliably push the first driven part 421 when the first rotating member 410 rotates. In other embodiments, the first positioning part 422 and the positioning mating part 611 may also be other forms such as a snap fastener and a slot.

[0294] In one possible implementation, the first rotating member 410 includes an engaging section 4101 and a notched section 4102 arranged around the first rotating member 410, the engaging section 4101 being configured to engage with a transmission assembly.

[0295] Schematic, the meshing section 4101 and the notch section 4102 are provided on the circumferential surface of the gear section 4104, that is, the gear section 4104 is an incomplete gear. The gear section 4104 can mesh with the stirring gear 310 through the meshing section 4101 and can disengage from the stirring gear 310 through the notch section 4102. When the first rotating member 410 disengages from the stirring gear 310, the detected member 500 remains in the same position.

[0296] In this structure, the first rotating member 410 can engage with the transmission assembly through the meshing section 4101, allowing the transmission assembly to drive the first rotating member 410 to rotate. The first rotating member 410 can disengage from the transmission assembly through the notch. When the transmission assembly moves, the first rotating member 410 stops rotating, ending the detection process and completing the detection flow of the developing device.

[0297] In the initial state (the developing apparatus is brand new and unused), the first rotating member 410 is located in a first position in the first direction, where one of the recesses 4111 is aligned with the first driven part 421 in the first direction (i.e., when viewed from the first direction, the first driven part 421 is located within the recess 4111). In the initial state, after the developing apparatus is installed into the image forming apparatus, the detected member 500 is in a non-detection position, and at this time, the detected member in the image forming apparatus is not moved by the detected member 500.

[0298] When the power receiving unit 321 receives the power output from the image forming apparatus and rotates, the power is transmitted to the developing roller 210, the powder feeding roller 260, and the stirring frame 270 through the meshing relationship between the gears in the transmission assembly, causing the developing roller 210, the powder feeding roller 260, and the stirring frame 270 to start rotating, thereby starting the developing apparatus to operate.

[0299] The translational member 420, constrained by the first positioning part 422 and the positioning mating part 611, cannot rotate with the stirring frame 270. Simultaneously, the rotation of the stirring gear 310 drives the gear part 4104 to rotate, which in turn drives the first rotating member 410 to rotate. The rotation direction of the first rotating member 410 is... Figure 14 The clockwise direction (indicated by the arrow) is indicated by the rotation of the first rotating member 410, which in turn causes the recess 4111 on the first disc portion 411 to rotate. Under the action of the first transmission surface 403, the sidewall of the recess 4111 applies a force parallel to the first direction to the first driven part 421, causing the first driven part 421 to drive the translation member 420 to move to the left along the first direction, while the second disc portion 429 compresses the elastic member to the left. At this time, the detected member 500 is in the detection position. It can be understood that when the first rotating member 410 is provided with the first transmission surface 403, the sidewall of the recess 4111 is the first transmission surface 403. The detected member 500 moves the detection member, causing the detection circuit in the image forming apparatus to generate an electrical signal.

[0300] Then, as the first rotating member 410 continues to rotate, it rotates to a position where another recess 4111 in the first direction aligns with the first driven part 421. At this point, the elastic potential energy stored in the elastic member is released, causing the translational member 420 to move to the right along the first direction. Meanwhile, the detected member 500 moves from the detection position to the non-detection position. After the detected member 500 moves to the non-detection position, the detection member resets, and the generation of electrical signals within the image forming apparatus ceases.

[0301] Then, as the first rotating member 410 continues to rotate, under the action of the first transmission surface 403, the side wall of the other recess 4111 pushes the translational member 420 to move to the left again along the first direction, causing the detected member 500 to move to the detection position again. This causes the detection circuit in the image forming apparatus to generate an electrical signal for the second time.

[0302] Then, as the first rotating member 410 continues to rotate, the notched section 4102 on the gear part 4104 rotates to the position where the gear part 4104 meshes with the stirring gear 310, thereby disengaging the gear part 4104 from the stirring gear 310, causing the first rotating member 410 to stop rotating, ending the detection process, and completing the detection process of the developing device.

[0303] Furthermore, after the first driven part 421 is pushed out from another recess 4111 and disengaged from the gear part 4104 and the stirring gear 310, the detected element 500 remains in the detection position, thus continuously generating a second electrical signal. In other embodiments, a termination opening may be added to the first disc part 411 along the radial direction of the first disc part 411 and toward the direction close to the central axis of the first disc part 411. The fan-shaped surface surrounding the termination opening on the first disc part 411 in the first direction covers the notch section 4102, so that when the first rotating member 410 disengages from the stirring gear 310, the first driven part 421 is inserted into the termination opening under the elastic force of the elastic member, so that when the first rotating member 410 stops moving, the detected element 500 is in the non-detection position.

[0304] Based on a combination of one or more pieces of information, such as the quantity, time interval, and duration of electrical signals, the image forming apparatus can determine information about the developing apparatus (e.g., model, age, capacity, lifespan, etc.).

[0305] In other embodiments, the number of recesses 4111, the interval between recesses 4111, and the length of the first transmission surface 403 can be changed on the first rotating member 410 to change the number of electrical signals, the time interval, and the duration, thereby corresponding to information of different models of developing devices.

[0306] The beneficial effect of the technical solution disclosed in this embodiment is that only one test piece 500 needs to be installed at the second end 120 of the developing device, without the need to install other transmission parts, which simplifies the structure of the developing device, reduces the space occupied by the components at the second end 120 of the housing 100, and is conducive to the miniaturization of the developing device.

[0307] like Figure 18 As shown, as another structure of the first rotating member 410, the recess 4111 is formed as a through hole penetrating the first disk portion 411.

[0308] In addition, the recess 4111 can also be designed to be recessed along the first direction from the side of the first rotating member 410 near the box 100 and toward the direction away from the first end 110 of the box 100 (i.e., a blind hole or groove shape).

[0309] Alternatively, a first transmission protrusion can be provided on the side of the first rotating member 410 near the box body 100, extending in the direction of the first direction toward the first end 110 of the box body 100. The protrusion replaces the recess 4111, and the protrusion drives the translation member 420 to move relative to the box body 100 in the first direction.

[0310] This embodiment provides a test piece 500, which can move relative to the box 100 when the transmission unit includes a translation member 420 and the translation member 420 is displaced relative to the box 100 in a first direction.

[0311] like Figure 11 , Figure 13 and Figure 16 As shown, in one possible implementation, the developing apparatus provided in this embodiment includes a first arm 510, a second pivot portion 520, and a second arm 530 in its tested component 500. The second pivot portion 520 is rotatably mounted on the second end 120, and the rotation axis of the second pivot portion 520 is perpendicular to the first direction. There is an angle between the extension direction of the first arm 510 and the extension direction of the second arm 530. One end of the first arm 510 away from the second pivot portion 520 is used to abut against the other end of the translational member 420.

[0312] For example, a first support base 124 is provided at the second end 120 of the housing 100, and the first support base 124 extends from the second end 120 of the housing 100 in a first direction toward a direction away from the housing 100. A first support shaft 125 is provided on the first support base 124, and the first support shaft 125 extends from the first support base 124 in a second direction toward a direction away from the developing roller 210. A second pivot portion 520 is rotatably supported by the first support shaft 125, and the axis of rotation of the second pivot portion 520 is parallel to the second direction.

[0313] like Figure 11 and Figure 13As shown, the first arm 510 extends from the second pivot 520 along a second direction away from the developing roller 210. The second arm 530 extends from the second pivot 520 along a first direction away from the second end 120 of the housing 100. The first arm 510 and the second arm 530 form a 90° angle. The end of the first arm 510 away from the second pivot 520 in the second direction is the force-receiving end, and the end of the second arm 530 away from the second pivot 520 in the first direction is the force-applying end. In the first direction, the force-receiving end of the first arm 510 is aligned with the end of the first rod portion 428 near the second end 120 of the housing 100. The force-applying end of the second arm 530 applies force to a detection element inside the image forming apparatus outside the developing apparatus, causing the detection element to be agitated, thereby generating an electrical signal in the detection circuit inside the image forming apparatus, thus detecting the developing apparatus. The first arm 510, the second arm 530, and the second pivot 520 form a lever mechanism.

[0314] In this embodiment, when the translation member 420 moves along the first direction from the first end 110 to the second end 120, the force-receiving end of the first arm 510 is pushed to the left by the translation member 420, which in turn causes the force-applying end of the second arm 530 to swing upward, thereby actuating the detection element within the image forming apparatus and causing the detection circuit within the image forming apparatus to generate an electrical signal. When the translation member 420 moves along the first direction from the second end 120 to the first end 110, the detected element 500 can return to the non-detection position under the action of gravity (in other embodiments, an elastic element can also be provided so that the detected element 500 returns to the non-detection position under the elastic force of the elastic element). After the detected element 500 moves to the non-detection position, the detection element resets, and at this time, the generation of electrical signals within the image forming apparatus stops.

[0315] It is worth mentioning that the test piece 500 provided in this embodiment can also be used in other developing apparatuses with translational members 420.

[0316] Example 3

[0317] like Figures 19-31 As shown, this embodiment provides a developing apparatus, which differs from the developing apparatus provided in the above embodiments in that the structure of the transmission unit is different.

[0318] like Figures 19-21As shown, a second mounting bracket 1202 is detachably mounted on the second end 120 of the housing 100. The second mounting bracket 1202 has a conductive hole 12021 for the first electrical contact 911 to extend out. The conductive element 910 of the conductive assembly 900 can be mounted on the second mounting bracket 1202. The second mounting bracket 1202 is used to rotatably support the left ends of the developing roller 210 and the powder feeding roller 260. The second mounting bracket 1202 is supported by the second end 120, so the developing roller 210 and the powder feeding roller 260 are indirectly supported by the second end 120.

[0319] In one possible implementation, the developing assembly includes a stirring shaft, a first rotating member coaxially disposed with the stirring shaft, the first rotating member being used to provide power to the stirring shaft, and a first transmission surface disposed on the side of the first transmission member facing the first end 110.

[0320] Specifically, the transmission assembly includes a stirring gear 310 rotatably mounted on the first end 110. In this embodiment, the stirring gear 310 is also the first rotating member. The stirring gear 310 is provided with a second transmission protrusion 312 (equivalent to the first transmission protrusion mentioned later). The second transmission protrusion 312 is provided with a second transmission surface 3121, equivalent to the first transmission surface. The second transmission protrusion 312 is located on the side of the stirring gear 310 facing the second end 120. The transmission unit includes a translational member 420 extending along a first direction. The translational member 420 is capable of displacement relative to the housing 100 in the first direction. In this embodiment, the translational member 420 can move along the first direction. The second transmission protrusion 312 is configured to abut against one end of the translational member 420. The thickness of the second transmission protrusion 312 gradually increases in the rotational direction of the stirring gear 310.

[0321] Specifically, the second transmission protrusion 312 can be integrally formed on the left end face of the stirring gear 310, and the second transmission protrusion 312 extends along the circumferential direction of the stirring gear 310, and the second transmission protrusion 312 protrudes to the left from the left end face of the stirring gear 310 along the first direction. Figure 20 and Figure 21 As shown, a second transmission surface 3121 is provided on the second transmission protrusion 312. In the rotation direction of the stirring gear 310 (clockwise when viewed from right to left), the upstream end of the second transmission surface 3121 is further to the right than the downstream end.

[0322] A first through hole is provided on the first end 110 of the housing 100, extending through the first end 110 along a first direction. A second through hole is provided on the second end 120, extending through the second end 120 along the first direction. The first and second through holes are coaxially arranged. The translational member 420 is a cylindrical rod-shaped member that moves along the first direction, inserts into and is supported by the first and second through holes. The translational member 420 passes through the housing 100. A first driven part 421 is integrally formed on the right end of the translational member 420. The first driven part 421 protrudes radially from the circumferential surface of the translational member 420. The translational member 420 has a first position and a second position. In the first position, the first driven part 421 on the translational member 420 abuts against the left end face of the stirring gear 310. In the second position, the translational member 420 abuts against the downstream end of the second transmission surface 3121. When the translational member 420 is in the first position, it is positioned further to the right than when it is in the second position. When the developing device is in the factory preset state, the translational member 420 is in the first position.

[0323] For example, the conductive element 910 of the conductive component 900 can be a conductive steel sheet. The conductive element 910 includes a first electrical contact 911 and a second electrical contact 912. The first electrical contact 911 contacts and is electrically connected to the second cover 620 on the housing 100, and the second electrical contact 912 contacts and is electrically connected to the powder feeding roller 260. The conductive element 910 is fixed to the second end 120 by the second mounting bracket 1202. The first electrical contact 911 of the conductive element 910 is in the shape of a raised steel sheet. After the second cover 620 is installed on the second end 120, the second cover 620 presses on the first electrical contact 911, causing the first electrical contact 911 to undergo elastic deformation. Under the action of elastic force, the first electrical contact 911 and the second cover 620 maintain a tight contact, avoiding poor contact.

[0324] In the developing apparatus provided in this embodiment, during operation, the power receiving unit 321 receives power output from the image forming apparatus and rotates, thereby driving the developing roller 210, the powder feeding roller 260, and the stirring frame 270 to rotate. During the rotation of the stirring gear 310, the second transmission protrusion 312 rotates together with the stirring gear 310, causing the stirring gear 310 to rotate from contact with the first driven part 421 at its left end face to contact with the first driven part 421 at its upstream end of the second transmission surface 3121 on the second transmission protrusion 312, and then to contact with the first driven part 421 at its downstream end. During the process of the stirring gear 310 moving from contact with the first driven part 421 at its left end face to contact with the first driven part 421 at its downstream end of the second transmission surface 3121, the first driven part 421 is driven, causing the translational member 420 to move from the first position to the second position, and then stopping the translational member 420 at the second position. During its movement, the translation component 420 causes the tested component 500 to move relative to the box 100.

[0325] like Figures 23-31 As shown, a second cover 620 is provided on the second end 120, and the test piece 500 is rotatably mounted on the second cover 620. The transmission unit also includes a slider 490 mounted on the other end of the translation member 420. A pushing protrusion 491 is provided on the slider 490, and the pushing protrusion 491 is configured to push the test piece 500 to rotate to the test position.

[0326] The tested component 500 is lever-shaped and includes a second pivot 520, a first arm 510, and a second arm 530. A second cover 620 is detachably mounted on the second end 120. Two third support seats 628 are integrally formed on the second cover 620. Each third support seat 628 has a support opening 6281 that extends through it along a second direction, with the right end of the opening not closed. The second pivot 520 can be pressed into the support opening 6281 from its right end. The second pivot 520 is rotatably mounted in the support opening 6281 and rotatably supported by the third support seats 628. The second pivot 520 can rotate about a rotation axis perpendicular to the first direction. In this embodiment, the rotation axis of the second pivot 520 is parallel to the second direction; in other embodiments, the rotation axis of the second pivot 520 can be in other directions.

[0327] Optionally, a blocking post 1203 is integrally formed on the second end 120 of the housing 100, and the blocking post 1203 protrudes to the left from the second end 120 along the first direction. When the second pivot part 520 of the tested component 500 is installed into the support opening 6281, and the second cover 620 is fastened to the second end 120, the blocking post 1203 blocks the right end opening of the support opening 6281, thereby preventing the second pivot part 520 from falling out of the support opening 6281.

[0328] The slider 490 is fixedly installed on the end of the translation member 420 facing the second end 120, and the end of the translation member 420 facing the second end 120 extends out of the housing 100. The slider 490 includes an integrally formed main body 492, an extension 493, a second guide 494, and a pushing protrusion 491. The main body 492 has a fixing hole 4921 for the left end of the translation member 420 to pass through and insert. The left end of the translation member 420 is provided with a buckle that can elastically deform in the radial direction of the translation member 420. After the translation member 420 is inserted into the fixing hole 4921, the buckle elastically deforms. After the left end of the translation member 420 extends out of the fixing hole 4921, the elastic deformation of the buckle disappears and it locks the fixing hole 4921, preventing the slider 490 from falling off the translation member 420. An extension 493 extends downward from the lower surface of the main body 492, integrally formed. The left end of the extension 493 is integrally connected to the second guide portion 494, which has an outer circumferential surface with its central axis parallel to the first direction. A second guide rail 626 is integrally formed on the second cover 620, and the second guide rail 626 has an inner circumferential surface that mates with the outer circumferential surface of the second guide portion 494. The second guide portion 494 can slide along the first direction within the second guide rail 626 and is restricted to movement in the first direction. The right end of the extension 493 is integrally connected to a pushing protrusion 491, whose front end has a pushing inclined surface 4911, which is positioned higher than its rear end. In this embodiment, there is one pushing protrusion 491; in other embodiments, there may be two or more pushing protrusions 491. The slider 490 can move together with the translation member 420.

[0329] The first arm 510 is integrally formed and connected to the right side of the second pivot 520, and the second arm 530 is integrally formed and connected to the left side of the second pivot 520. A window 622 for the second arm 530 to extend from the second cover 620 is provided. The first arm 510 is provided with a mating inclined surface 511 that cooperates with the pushing inclined surface 4911, making the contact and power transmission between the first arm 510 and the pushing protrusion 491 smoother. The second cover 620 is also integrally formed with a mounting plane 627, on which a fourth elastic member 760 is fixedly mounted. The fourth elastic member 760 is located below the first arm 510. When the object to be detected 500 is in the detection position, the pushing protrusion 491 contacts the first arm 510, and the second arm 530 contacts the detection object within the image forming apparatus, pushing the detection object and causing it to displace, thereby generating an electrical signal within the image forming apparatus. When the object being tested 500 is in the non-detection position, the second arm 530 contacts the object being tested, but the second arm 530 cannot move the object being tested to a position that generates an electrical signal within the image forming apparatus. The fourth elastic member 760 is used to keep the object being tested 500 in the non-detection position, and the object being tested can rotate from the non-detection position to the detection position under the action of the pushing protrusion 491. In this embodiment, the fourth elastic member 760 is a sponge; in other embodiments, the fourth elastic member 760 can also be a compression spring or other components.

[0330] Optionally, the developing apparatus includes a conductive element 910, which comprises a first electrical contact 911 and a second electrical contact 912. The first electrical contact 911 contacts and is electrically connected to the second cover 620, and the second electrical contact 912 contacts and is electrically connected to the powder delivery roller 260. The second arm 530 of the detected element 500 contacts and is electrically connected to the power supply terminal in the image forming apparatus, thereby receiving power and transmitting power to the second cover 620 through the third support 628. The second cover 620 transmits power to the conductive element 910 through the first electrical contact 911, and the conductive element 910 transmits power to the powder delivery roller 260 through the second electrical contact 912. The powder delivery roller 260 transmits power to the developing roller 210, thereby ensuring that both the developing roller 210 and the powder delivery roller 260 receive the voltage provided by the image forming apparatus.

[0331] Schematic illustration: the translation member 420 has a first position and a second position. When the translation member 420 is in the first position, it is generally more to the right than when it is in the second position. When the developing device is in the factory preset state, the translation member 420 is in the first position; after the testing process of the developing device is completed, the translation member 420 is in the second position.

[0332] During the process of the translation member 420 moving from the first position to the second position, the slider 490 receives the power transmitted by the translation member 420 and moves to the left along the first direction with the translation member 420. At the same time, with the cooperation of the second guide part 494 and the second guide rail 626, the slider 490 can only move along the first direction. The push protrusion 491 moves to the left with the slider 490, so that the push slope 4911 on the push protrusion 491 contacts the matching slope 511 on the first arm 510. This causes the first arm 510 to swing downward around the second pivot part 520 and causes the fourth elastic member 760 to be compressed and produce elastic deformation. The downward swing of the first arm 510 causes the second pivot part 520 to drive the second arm 530 to swing upward. This causes the second arm 530 to push the detection element in the image forming apparatus and move the detection element to the position that generates an electrical signal in the image forming apparatus. This generates an electrical signal in the image forming apparatus, which then determines that the developing apparatus is a new developing apparatus. If the developing apparatus has already been used, and there is no external interference, the translation member 420 has already moved to the second position. The translation member 420 cannot continue to move, so the detected object 500 cannot receive the power transmitted by the translation member 420 and move, thus preventing the generation of an electrical signal in the image forming apparatus.

[0333] In other embodiments, the number of push protrusions 491 can be two or more, with intervals between them. Each push protrusion 491 can press down the first arm 510 once when it passes the first arm 510, causing the second arm 530 to swing upward once, thereby generating an electrical signal within the image forming apparatus. The number of electrical signals generated allows the image forming apparatus to determine more information about the developing apparatus (such as model, capacity, and lifespan). The time interval between two adjacent electrical signals can be adjusted by adjusting the interval between adjacent push protrusions 491, and the duration for which the detected item 500 is held in the detection position can be adjusted by adjusting the size of the push protrusions 491. Adjusting these parameters allows the image forming apparatus to determine different information related to the developing apparatus, greatly expanding the richness of the information. This allows the detection component to record more information related to the developing apparatus and provide it to the image forming apparatus, facilitating the image forming apparatus to determine and display information about the developing apparatus to the user, such as remaining lifespan, age, and whether the model of the developing apparatus matches the model of the image forming apparatus, thereby improving the user experience.

[0334] The test piece 500 provided in this embodiment is also applicable to other developing apparatuses with translational members 420, and the translational members 420 do not rotate relative to the cassette.

[0335] Example 4

[0336] like Figures 32-41 As shown, this embodiment provides a developing apparatus, which differs from the developing apparatus provided in the above embodiments in that the structure of the transmission unit is different.

[0337] like Figure 34 and Figure 35 As shown, in one possible implementation, the transmission unit includes a support member 470 mounted on the first end 110 in addition to the transmission member and the first rotating member 410. The first rotating member 410 is sleeved on the support member 470. At least one of the first rotating member 410 and the support member 470 has a separation slope intersecting the first direction. The first rotating member 410 and the support member 470 are connected by the separation slope so that the first rotating member 410 can generate displacement relative to the box 100 in the first direction. A first transmission protrusion 417 is provided on the outer circumferential surface of the first rotating member 410.

[0338] The separation slope can be provided only on the inner circumferential surface of the first rotating member 410, or it can be provided only on the outer circumferential surface of the support member 470. In other embodiments, separation slopes can be provided on both the inner circumferential surface of the first rotating member 410 and the outer circumferential surface of the support member 470.

[0339] In this structure, when the first rotating member 410 rotates relative to the housing 100, under the action of the separation inclined surface, the first rotating member 410 can generate displacement relative to the housing 100 in the first direction, thereby disengaging the first rotating member 410 from the transmission assembly to complete the detection process of the developing device 1.

[0340] Continue to refer to Figure 34 and Figure 35 The outer peripheral surface of the support member 470 is provided with a threaded portion 471, the separation inclined surface is provided on the threaded portion 471, and the inner peripheral surface of the first rotating member 410 is provided with a first protruding rib 4109 that is threadedly connected to the threaded portion 471.

[0341] The first protruding rib 4109 can extend into the interior of the threaded portion 471 and move along the extending direction of the threaded portion 471. For example... Figure 34 and Figure 35As shown, the support member 470 forms a hollow cylindrical structure and is fixedly connected to the first end 110 of the box body 100. A first rotating member 410 is movably mounted on the support member 470, which supports the first rotating member 410 for rotation and allows it to move axially. Specifically, the main body of the first rotating member 410 forms a cylindrical structure sleeved on the outside of the support member 470, with an inner diameter larger than the outer diameter of the support member 470. The support member 470 is also provided with a fixing arm 472 that can be fixedly connected to the first end 110 of the box body 100; that is, the support member 470 is fixedly connected to the first end 110 via the fixing arm 472. A first transmission protrusion 417 is located on the outer wall of the first rotating member 410, and is situated at the end of the main body of the first rotating member 410 closest to the first end 110. Indicatively, the power receiving device 320 can drive the first rotating component 410 to rotate relative to the box body 100.

[0342] In other embodiments, the threaded portion 471 may also be provided on the inner wall of the main body of the first rotating member 410, and the first protruding rib 4109 may be provided on the outer surface of the support member 470, which can also realize the axial movement of the rotating member on the support member 470.

[0343] In this structure, when the first protruding rib 4109 extends into the threaded portion 471, the threaded portion 471 can guide and limit the first protruding rib 4109. When the first rotating member 410 rotates, it can stably generate displacement relative to the box 100 in the first direction.

[0344] Please continue reading. Figure 34 and Figure 35 The transmission assembly includes a stirring gear 310 rotatably mounted on the first end 110, and the developing assembly includes a stirring shaft 220 rotatably mounted on the housing 100. The stirring shaft 220 passes through the support member 470. The stirring gear 310 is located on the side of the first rotating member 410 away from the first end 110 and is fixedly connected to the stirring shaft 220. A connecting rod 419 protrudes from the end of the first rotating member 410 away from the first end 110. The stirring gear 310 is provided with a through-hole 311 into which the connecting rod 419 extends.

[0345] Understandably, the support member 470 is sleeved on the outside of the stirring shaft 220, and the support member 470 does not rotate with the stirring shaft 220. The through-hole 311 is located on the stirring gear 310 away from the rotation axis and extends along the axial direction of the stirring gear 310. Understandably, the first rotating member 410 is located on the side of the stirring gear 310 facing the first end 110, and the connecting rod 419 also extends along the axial direction of the stirring gear 310. The stirring gear 310 and the first rotating member 410 have a first connected state and a second separated state. Specifically, in the first connected state, the rotation of the stirring gear 310 drives the first rotating member 410 to move, causing the first rotating member 410 to move closer to the first end 110 of the housing 100. In the second separated state, the first rotating member 410 does not follow the rotation of the stirring gear 310 and the two are in a separated state.

[0346] In this structure, the first rotating component 410 and the stirring gear 310 are connected by a transmission mechanism through the mutual engagement between the connecting rod 419 and the through-hole 311. That is, the stirring gear 310 can drive the first rotating component 410 to move relative to the housing 100. When the first rotating component 410 moves to the point where the connecting rod 419 disengages from the through-hole 311, the first rotating component 410 disengages from the stirring gear 310, thus completing the detection of the developing device.

[0347] In one possible implementation, the first transmission protrusion 417 is a block-shaped structure protruding from the outer side wall of the first rotating member 410. The transmission member includes a pivotally mounted swing member 430 on the housing 100. The first transmission protrusion 417 is configured to push one end of the swing member 430 to cause the swing member 430 to swing relative to the housing 100.

[0348] The box body 100 has a swing groove 156 for the swing member 430 to move within. A first rotation shaft 157 is provided on the swing groove 156, allowing the swing member 430 to rotate around it. The first rotation shaft 157 protrudes outward from the swing groove 156, and the swing rod has a shaft hole that mates with the first rotation shaft 157. Alternatively, the rotation shaft can be mounted on the swing rod, and the swing groove 156 has a shaft hole for inserting the rotation shaft. The swing grooves 156 are arranged opposite each other in a second direction. Specifically, the swing grooves 156 extend towards the fourth end 140 of the box body 100 in the direction towards the first end 110, and towards the third end 130 of the box body 100 in the direction towards the second end 120. The swing axis of the swing member 430 intersects any tangent on the rotation trajectory of the first rotating member 410. The swing member 430 is provided with two second protruding ribs 437, which are respectively provided on both sides of the first rotation axis 157 on the swing member 430 to enhance the structural stability of the swing rod.

[0349] Optional, such as Figure 33 As shown, the first cover 610 is provided with a first limiting member 615 that can limit one end of the swing member 430, and the second cover 620 is provided with a second limiting member 621 that can limit the other end of the swing member 430, which can ensure that the swing member 430 always moves within the swing groove 156.

[0350] The swing member 430 is provided with a first end 438 at the end of the first end 110 of the box body 100, which can abut against the first transmission protrusion 417. The first end 438 is provided as an arc surface that can abut against the first transmission protrusion 417.

[0351] In this structure, when the first rotating member 410 rotates, it interferes with the end of the swing member 430 through the block-shaped first transmission protrusion 417, thereby causing the swing member 430 to swing relative to the housing 100, so that the detected item 500 moves relative to the housing 100, and the image forming apparatus can acquire information from the developing apparatus.

[0352] The difference between this embodiment and the above embodiment is that the transmission component includes a swing component 430 that can be pivotally mounted on the housing 100, and the detected component 500 is fixedly mounted on the other end of the swing component 430.

[0353] like Figures 32-41 As shown, the component to be tested 500 is disposed at one end of the swing member 430 located at the second end 120 of the housing 100, and the component to be tested 500 is located on the side of the swing member 430, and the component to be tested 500 and the swing member 430 are integrally formed. In other embodiments, the component to be tested 500 can also be fixed to the swing member 430 by means of bonding or fasteners. The component to be tested 500 includes a beveled portion 506 and a curved portion 505, one end of the beveled portion 506 is connected to the swing member 430, and the other end of the beveled portion 506 is connected to the curved portion 505. During the movement of the component to be tested 500, the curved portion 505 can be directly detected by the detection device in the image forming apparatus. The outer surface of the curved portion 505 is an arc surface, which can protect the detection device when in contact with the detection device and increase its service life.

[0354] With the above settings, when the swinging component 430 swings relative to the box 100, the tested component 500 moves synchronously with the swinging component 430, and the transmission structure is simple and stable.

[0355] The test piece 500 provided in this embodiment is also applicable to other developing apparatuses with a swinging element 430.

[0356] The working principle of the developing apparatus provided in this embodiment is as follows: Figures 36-41As shown, the developing unit is fixed to the drum assembly and installed together in the image forming apparatus. The power receiving device 320 receives driving force from the image forming apparatus and begins to rotate. The developing gear 330, the powder feeding gear 340, and the idler gear 350, which mesh with the power receiving device 320, rotate respectively. The developing gear 330 drives the developing roller 210 to rotate, the powder feeding gear 340 drives the powder feeding roller 260 to rotate, and the idler gear 350 drives the stirring gear 310, which meshes with it, to rotate. In the initial position, as... Figure 36 and Figure 37 As shown, the stirring gear 310 and the first rotating member 410 are in a first connection state. The connecting rod 419 of the first rotating member 410 is always in the through-hole 311 of the stirring gear 310. When the stirring gear 310 rotates, it drives the first rotating member 410 to rotate. Since the first protruding rib 4109 of the first rotating member 410 is engaged with the threaded part 471 of the support member 470, the first rotating member 410 moves axially toward the first end 110 of the box 100 on the support member 470.

[0357] like Figure 38 and Figure 39 As shown, when the first rotating member 410 rotates, the first transmission protrusion 417 abuts against the arc surface of the first end 438. When the first rotating member 410 moves further toward the first end 110 of the box 100, the first transmission protrusion 417 pushes the first end 438 toward the rear of the box 100, causing the swing member 430 to swing around the first rotating axis 157, thereby driving the detected member 500 to move to the detection position, and thus being detected for the first time.

[0358] As the stirring gear 310 rotates, as Figure 39 and Figure 40 As shown, the first transmission protrusion 417 moves away from the first end 438, the tested component 500 and the swing rod are reset, and the first end 438 moves from the rear of the housing 100 toward the front of the housing 100. When the first rotating component 410 moves further toward the first side of the housing 100, the first rotating component 410 moves away from the stirring gear 310 in its axial movement, so that the stirring gear 310 and the first rotating component 410 are in a second separation state, that is, the connecting rod 419 of the first rotating component 410 disengages from the through-hole 311 of the stirring gear 310, and the two are in a separated state. At this time, the first transmission protrusion 417 pushes the first end 438 toward the rear of the housing 100 again, so that the swing component 430 swings around the first rotating axis 157 again, thereby driving the tested component 500 to move to the detection position, completing the second detection, and thus completing the detection process of the developing device. The information of the developing device is also transmitted to the image forming device, so that the developing device can be used normally.

[0359] Reset operation: The developing unit and drum assembly need to be removed from the image forming apparatus. Then, the first cover 610 is removed from the first end 110 of the housing 100, exposing the transmission assembly. Then, the first rotating member 410 is rotated in the opposite direction by hand so that the connecting rod 419 on the first rotating member 410 is reinserted into the through-hole 311 of the stirring gear 310. The rotating member should be kept as close as possible to the stirring gear 310. The first cover 610 is then reinstalled onto the housing 100 to complete the reset process.

[0360] Example 5

[0361] like Figures 42-53 As shown, the difference between this embodiment and embodiment 4 is that the structures of the transmission component and the first rotating component 410 are different.

[0362] In one possible implementation, the first transmission protrusion 417 is an annular structure protruding from the outer side wall of the first rotating member 410. The transmission member includes a translational member 420 extending along a first direction. The translational member 420 is capable of displacement relative to the box 100 in the first direction. The first transmission protrusion 417 abuts against one end of the translational member 420.

[0363] The first transmission protrusion 417 extends radially away from the axis of the first rotating member 410. In this embodiment, the connecting rod 419 is disposed on the side of the main body of the first rotating member 410 facing the stirring gear 310; of course, the connecting rod 419 can also be disposed on the first transmission protrusion 417, which is not limited here. The stirring gear 310 and the first rotating member 410 have a first connected state and a second separated state. Specifically, in the first connected state, the rotation of the stirring gear 310 drives the first rotating member 410 to move, causing the first rotating member 410 to move closer to the first end 110 of the box 100. In the second separated state, the first rotating member 410 does not follow the rotation of the stirring gear 310 and the two are in a separated state.

[0364] The translational member 420 forms a rod-shaped structure extending along a first direction. A second sliding groove 158 is provided on the housing 100, allowing the translational member 420 to move within it. Two second limiting portions 1581 are provided on the second sliding groove 158 to prevent the translational member 420 from disengaging from it. In this embodiment, the second sliding groove 158 is a recessed groove on the surface of the housing 100. Through holes are provided at both ends of the recessed groove, allowing the translational member 420 to pass through. Each of the two through holes forms a second limiting portion 1581. A first driven portion 421, which abuts against the first transmission protrusion 417, is provided on the portion of the translational member 420 located at the first end 110 of the housing 100.

[0365] In this structure, when the first rotating member 410 rotates relative to the housing 100, the first rotating member 410 synchronously generates displacement relative to the housing 100 in a first direction. The first transmission protrusion 417 on the first rotating member 410 pushes the translation member 420 to generate displacement relative to the housing 100 in the first direction, so that the detected item 500 moves relative to the housing 100, and the image forming apparatus can acquire information from the developing apparatus.

[0366] Schematic, the developing apparatus also includes a steering protrusion 1211, which is displaced relative to the housing 100 in a first direction as the translation member 420 moves. The test piece 500 is driven by the steering protrusion 1211 to be displaced in a direction intersecting the first direction.

[0367] In this structure, the translational member 420 drives the steering protrusion 1211 to move during movement, and the steering protrusion 1211 drives the detected object 500 to move relative to the housing 100, thereby enabling the image forming apparatus to acquire information from the developing apparatus.

[0368] like Figures 45-53 As shown, a second cover 620 is provided on the second end 120, and a window 622 is provided on the second cover 620. The tested component 500 passes through the window 622 and is slidably connected to the second cover 620. A steering protrusion 1211 is provided on one end of the translation member 420 facing the second end 120. A first mating protrusion 560 is provided on the tested component 500. At least one of the steering protrusion 1211 and the first mating protrusion 560 has a third transmission surface 1221 that is inclined relative to the first direction. The steering protrusion 1211 is used to push against the first mating protrusion 560 to drive the tested component 500 to slide.

[0369] The second cover 620 is detachably installed at the second end 120 of the housing 100. Part of the test piece 500 extends out of the window 622. The second cover 620 is provided with a first guide part 623 at the window 622, which can guide the movement of the test piece 500. The test piece 500 is provided with a first limiting groove 507 that cooperates with the first guide part 623.

[0370] For example, the translation member 420 located at the second end 120 of the housing 100 is connected to a drive arm 4210 capable of moving the tested item 500 within the first guide portion 623. The drive arm 4210 includes a first connecting arm 42101 and a second connecting arm 42102 connected to the first connecting arm 42101. The first connecting arm 42101 is substantially parallel to the end face of the second end 120 of the housing 100, and the second connecting arm 42102 extends in a direction away from the second end 120. A steering protrusion 1211 is disposed on the upper end face of the second connecting arm 42102. A first mating protrusion 560 is disposed on the lower end face of the tested item 500. The number of first mating protrusions 560 can be set as needed, for example... Figure 46 As shown, two first mating protrusions 560 can be provided on the lower end surface of the workpiece 500 being inspected. Thus, when the translational member 420 drives the steering protrusion 1211, it can cause the workpiece 500 to move up and down twice along the first guide portion 623, meaning it is inspected twice by the detection device in the image forming apparatus. It is worth noting that the third transmission surface 1221 can be provided only on the steering protrusion 1211 or only on the first mating protrusions 560, or the third transmission surface 1221 can be provided on both the steering protrusion 1211 and the first mating protrusions 560.

[0371] In this structure, when the translational member 420 is displaced relative to the box 100 in the first direction, the steering protrusion 1211 will interfere with the first mating protrusion 560, and the detected member 500 will move from the non-detection position to the detection position through the third transmission surface 1221.

[0372] When two first mating protrusions 560 are provided on the lower end surface of the object under test 500, and the translational member 420 moves from the first end 110 to the second end 120 along the first direction, the steering protrusion 1211 on the second connecting arm 42102 first abuts against the first first mating protrusion 560, causing the object under test 500 to move from a non-detection position to a detection position, and thus be detected for the first time. When the steering protrusion 1211 moves between the two first mating protrusions 560, the object under test 500 moves from the detection position to a non-detection position, and the detection circuit in the image forming apparatus stops generating electrical signals. As the translational member 420 continues to move, the steering protrusion 1211 of the second connecting arm 42102 abuts against the second first mating protrusion 560, causing the object under test 500 to move from a non-detection position to a detection position, and thus be detected for the second time. During reset, the developing device and drum assembly need to be removed from the image forming device. The tested component 500 is moved to disengage the first mating protrusion 560 from the steering protrusion 1211. At this time, the drive arm 4210 is pushed to move toward the second end 120 of the housing 100, and the first mating protrusion 560 returns to the position of contacting the first steering protrusion 1211, thus completing the reset.

[0373] In one possible implementation, the developing apparatus further includes a fourth elastic element 760 connected to the tested element 500, configured to move the tested element 500 to a non-test position. The fourth elastic element 760 allows for better repositioning of the tested element 500.

[0374] In this embodiment, the fourth elastic element 760 can be a spring, which is connected between the upper end face of the tested element 500 and the second cover 620. In other embodiments, the tested element 500 can be moved from the testing position to the non-testing position when the first mating protrusion 560 disengages from the steering protrusion 1211, using its own weight.

[0375] The test piece 500 provided in this embodiment is also applicable to other developing apparatuses with a translational member 420 that does not rotate relative to the cassette.

[0376] The working principle of the developing apparatus provided in this embodiment is as follows: The developing apparatus is fixed to the drum assembly and installed together in the image forming apparatus. The power receiving device 320 receives the driving force from the image forming apparatus and begins to rotate. The developing gear 330, the powder feeding gear 340, and the idler wheel 350, which mesh with the power receiving device 320, rotate respectively. The developing gear 330 drives the developing roller 210 to rotate, the powder feeding gear 340 drives the powder feeding roller 260 to rotate, and the idler wheel 350 drives the stirring gear 310, which meshes with it, to rotate. In the initial position, such as Figure 48 and Figure 49 As shown, the stirring gear 310 and the first rotating member 410 are in a first connection state. The connecting rod 419 of the first rotating member 410 is always in the through-hole 311 of the stirring gear 310. When the stirring gear 310 rotates, it drives the first rotating member 410 to rotate. Since the first protruding rib 4109 of the first rotating member 410 is engaged with the threaded portion 471 of the support member 470, the first rotating member 410 moves axially toward the first end 110 of the box 100 on the support member 470, so that the first transmission protrusion 417 abuts against the first driven part 421. When the rotating member moves further toward the first end 110 of the box 100, as Figure 50 and Figure 51 As shown, the first transmission protrusion 417 pushes the first driven part 421 toward the second end 120 of the housing 100, thereby pushing the translational member 420 to displace relative to the housing 100 in a first direction, causing the detected member 500 to move relative to the housing 100. Figure 52 and Figure 53As shown, as the stirring gear 310 rotates, the first rotating component 410 moves further toward the first side of the housing 100. When the first rotating component 410 moves axially, it moves away from the stirring gear 310, so that the stirring gear 310 and the first rotating component 410 are in a second separation state, that is, the connecting rod 419 of the first rotating component 410 disengages from the through-hole 311 of the stirring gear 310, and the two are in a separated state. At this time, the position of the detected component 500 is fixed, the detection process of the developing device is completed, and the information of the developing device is also transmitted to the image forming device, so that the developing device can be used normally.

[0377] Reset operation: The developing device and drum assembly need to be removed from the image forming device. Then, the first cover 610 is removed from the first end 110 of the housing 100. At this time, the transmission assembly is exposed. The first rotating member 410 is rotated in the opposite direction by hand so that the connecting rod 419 on the first rotating member 410 is reinserted into the through hole 311 of the stirring gear 310. At the same time, the detected member 500 is reset, and the reset is completed.

[0378] Example 6

[0379] like Figures 54-61 As shown, this embodiment provides a developing apparatus that can be detachably mounted on the drum assembly of an image forming apparatus.

[0380] In one possible implementation, the transmission assembly includes a stirring gear 310 rotatably mounted on the first end 110, and the transmission unit, in addition to the first rotating member 410 and the translational member 420, also includes a second rotating member 450 rotatably mounted on the first end 110. The stirring gear 310 meshes with the second rotating member 450, and the second rotating member 450 is connected to the first rotating member 410 in a transmission connection.

[0381] like Figure 55 and Figure 56 As shown, the second rotating member 450 includes a second mounting hole 455, an engagement section 4101, and a notch section 4102. The second rotating member 450 is rotatably fixed to the first end 110 of the housing 100 through the second mounting hole 455, and can be limited by screws or other auxiliary elements to prevent it from falling off the housing 100. The engagement section 4101 has teeth arranged around the circumference of a portion of the second rotating member 450. The engagement section 4101 and the notch section 4102 together surround the circumference of the second rotating member 450, that is, the second rotating member 450 is an incomplete gear. The engagement section 4101 of the second rotating member 450 can engage with the stirring gear 310, causing the second rotating member 450 to rotate with the stirring gear 310. When the notch section 4102 is opposite to the stirring gear 310, the second rotating member 450 disengages from the stirring gear 310 and no longer rotates with the stirring gear 310.

[0382] The first rotating component 410 is also rotatably mounted on the first end 110 of the housing 100. The first rotating component 410 has a first mounting hole 4105, through which it is rotatably fixed to the first end 110 of the housing 100. Screws or other auxiliary components can be used to limit the first rotating component 410 and prevent it from falling off the housing 100. For example, the first rotating component 410 can be connected to the second rotating component 450 via gear meshing or belt drive.

[0383] In this embodiment, the position of the transmission component on the housing 100 can be set as needed. When the power receiving device 320 receives power and rotates, the power is transmitted to the stirring gear 310 via the drive gear 322. The stirring gear 310 drives the second rotating component 450 to rotate, and the second rotating component 450 drives the first rotating component 410 to rotate relative to the housing 100. When the first rotating component 410 rotates, it causes the translation component 420 to move relative to the housing 100. The translation component 420 drives the detected component 500 to move relative to the housing 100, so that the image forming apparatus can obtain information from the developing apparatus.

[0384] In one possible implementation, the first rotating member 410 is provided with a first transmission protrusion 417 on the side facing the first end 110, and the transmission protrusion 417 is provided with a first transmission surface.

[0385] like Figures 55-57 As shown, there are multiple first transmission protrusions 417, for example... Figure 57As shown, three first transmission protrusions 417 can be provided on the side of the first rotating member 410 facing the first end 110, and the three first transmission protrusions 417 form a ring structure on the first rotating member 410. One of the first transmission protrusions 417 forms a second flat portion 4171, which has a first end H1 and a second end H2 in the circumferential direction. The end face of the second flat portion 4171 facing the first end 110 is a flat arc surface, that is, the distance from each point on the end face of the second flat portion 4171 near the first end 110 in the first direction to the first end 110 is the same in the first direction. In other embodiments, the distance from each point on the end face of the second flat portion 4171 near the first end 110 in the first direction to the first end 110 in the first direction may also be different. Each first transmission protrusion 417 is provided with a tip, and a recess is formed between two adjacent first transmission protrusions 417. In the first direction, the distance between the second flattened portion 4171 and the first end 110 is less than the distance between the recess and the first end 110. In the first direction, the distance between the second flattened portion 4171 and the first end 110 is greater than the distance between the tip and the first end 110. The second flattened portion 4171, the tip, and the recess all face the first end 110. In other embodiments, the distance between the second flattened portion 4171 and the first end 110 in the first direction may not be greater than the distance between the tip and the first end 110. In this embodiment, there are three recesses and three tips, namely, a first recess B1, a second recess B2, and a third recess B3; a first tip T1, a second tip T2, and a third tip T3; the first recess B1, the second recess B2, and the third recess B3 are all equidistant from the first end 110 in the first direction; and the first tip T1, the second tip T2, and the third tip T3 are all equidistant from the first end 110 in the first direction. In other embodiments, the distance between the third tip T3 and the first end 110 in the first direction may be different from the distances between the first tip T1, the second tip T2 and the first end 110 in the first direction. There are three first transmission surfaces: a first inclined surface K1 located between the first recess B1 and the first tip T1; a second inclined surface K2 located between the second recess B2 and the second tip T2; and a third inclined surface K3 located between the third recess B3 and the third tip T3. The extension direction of the three inclined surfaces intersects the first direction and is along the Z direction away from the first end 110. For example, taking the first inclined surface K1 as an example, the upstream end of the first inclined surface K1 in the Z direction is closer to the first end 110 than its downstream end in the first direction. The Z direction is the rotation direction of the first rotating member 410. The angle between the third inclined surface K3 and the first direction is smaller than the angle between the first inclined surface K1 and the first direction, while the angles between the first inclined surface K1 and the second inclined surface K2 and the first direction are the same. This embodiment does not restrict the recesses and tips. The number, length, shape, and inclination of the inclined surface of the recesses and tips on the first rotating member 410 can be set according to actual needs.In addition, the first rotating member 410 also has a fixing position H3, which is groove-shaped. In the first direction, the distance from the fixing position H3 to the first end 110 is the same as the distance from the second flat part 4171 to the first end 110. In this embodiment, the first rotating member 410 is divided into the following segments according to the position of the tip and the recess: the first end H1 to the second end H2 is the first stage, the second end H2 to the first recess B1 is the second stage, the first recess B1 to the first tip T1 is the third stage, the first tip T1 to the second recess B2 is the fourth stage, the second recess B2 to the second tip T2 is the fifth stage, the second tip T2 to the third recess B3 is the sixth stage, the third recess B3 to the third tip T3 is the seventh stage, and the third tip T3 to the fixing position H3 is the eighth stage.

[0386] like Figures 54-61 As shown, the upper cover 170 of the box body 100 includes a first sliding groove 172, a first limiting part 173, and a movable groove 174. The first sliding groove 172 extends along a first direction, and in a second direction, the first sliding groove 172 is closer to the fourth end 140 relative to the third end 130. In this embodiment, there are two first limiting parts 173, which are respectively disposed at both ends of the first sliding groove 172. There are also two movable grooves 174, which are respectively close to the first end 110 and the second end 120 of the box body 100 in the first direction, that is, the two movable grooves 174 are respectively located at the ends of the two first limiting parts 173 that are away from the first sliding groove 172. Each first limiting part 173 has a limiting through hole that passes through the first sliding groove 172 and the movable groove 174 in the first direction. In the second direction, the radius of the first limiting part 173 and the radius of the movable groove 174 are greater than the radius of the first sliding groove 172. This embodiment does not limit the number and shape of the limiting part and the movable groove 174, and can be changed according to actual needs.

[0387] like Figure 54 , Figure 61 and Figure 62As shown, the translational member 420 is located at the fifth end 150 of the box body 100 and is detachably mounted on the upper cover 170. The translational member 420 can move left and right in a first direction, that is, it can generate displacement relative to the box body in the first direction. The translational member 420 includes an integrally formed first rod portion 428 and a first driven portion 421. The first rod portion 428 is at least partially mounted on the first slide groove 172. The translational member 420 is limited by two first limiting portions 173 to prevent the translational member 420 from falling out of the first slide groove 172. At the same time, the first rod portion 428 can move left and right in the first direction through the limiting through hole, that is, the first rod portion 428 is partially located in the first slide groove 172 and partially located in the two movable grooves 174 through the limiting through hole. In this embodiment, the first driven part 421 is a block-shaped object. The first driven part 421 is close to the first end 110 of the box body 100 and connected to the end of the first rod 428 near the first end 110. The first driven part 421 is located in the movable groove 174 near the first end 110 and can move relative to the movable groove 174. The radius of the first driven part 421 in the first direction is larger than the radius of the first slide groove 172. Therefore, the first driven part 421 can prevent the translation member 420 from detaching from the top cover 170 when moving in the first direction. A second driven end 4211 is provided on the side of the first driven part 421 away from the first rod 428. The second driven end 4211 can be partially located in the movable groove 174 or not located in the movable groove 174 at all. The second driven end 4211 can move relative to the movable groove 174 in the first direction. The second driven end 4211 is an arc-shaped protrusion extending to the right in the first driven part 421 in the first direction. The second driven end 4211 is used to abut against the first rotating member 410. Since the first rotating member 410 is rotatable, the second driven end 4211 can abut against the second flat part 4171, the tip, and the recess on the first rotating member 410 in sequence. The second driven end 4211 includes a second abutting arc surface 42111 and a second abutting end 42112, wherein the second abutting arc surface 42111 is equivalent to the first transmission surface. The contact position between the second driven end 4211 and the first driven part 421 is the starting position of the arc surface. The starting position extends to the right in the first direction and forward in the second direction to form the second abutting arc surface 42111. The second abutting arc surface 42111 is a smooth arc surface and is used to contact the inclined surface on the first rotating member 410. In the first direction, the second abutting arc surface 42111 and the second abutting end 42112 are located at the rightmost end of the second driven end 4211, which is also the rightmost end of the entire translational member 420. In the first direction, the second abutting end 42112 is always outside the movable groove 174. The second abutting end 42112 is connected to the second abutting arc surface 42111 and is a smooth arc-shaped end.The smooth arc surface and arc-shaped ends can reduce the frictional force when the second driven end 4211 abuts against the first rotating member 410, making the contact and switching between the second driven end 4211 and the first transmission protrusion 417 on the first rotating member 410 and the recesses between two adjacent first transmission protrusions 417 smoother. The abutment positions between the second abutment end 42112 and the first rotating member 410 are all abutment points.

[0388] A third elastic element 750 is fitted onto the translational member 420. This third elastic element 750 is located in the sliding groove 4441 of the first sliding groove 172 facing the first end 110. One end of the third elastic element 750 abuts against the wall formed by the first limiting part 173 and the movable groove 174, and the other end abuts against the first driven part 421. That is, the third elastic element 750 is located between the first limiting part 173 and the first driven part 421 of the first sliding groove 172 facing the first end 110. When the first driven part 421 is subjected to an abutting force from the first rotating member 410 in the first direction, the translational member 420 moves to the left, and the third elastic element 750 is compressed. When the abutting force from the first rotating member 410 in the first direction weakens or disappears, the translational member 420 moves to the right according to the elastic force of the third elastic element 750 itself.

[0389] In this structure, when the first rotating member 410 rotates relative to the box 100, the first transmission protrusion 417 on the first rotating member 410 interferes with the translation member 420, causing the translation member 420 to move relative to the box 100 in the first direction, thereby causing the detected member 500 to move relative to the box 100.

[0390] In one possible implementation, the transmission unit further includes a linkage rod 460 connected between the second rotating member 450 and the first rotating member 410, with one end of the linkage rod 460 rotatably connected to the second rotating member 450 and the other end rotatably connected to the first rotating member 410.

[0391] The second rotating member 450 is provided with a second connecting hole 454, which is radially spaced from the second mounting hole 455. The first rotating member 410 is provided with a first connecting hole 4108, which is radially spaced from the first mounting hole 4105.

[0392] like Figure 55 and Figure 58As shown, the linkage 460 includes an integrally formed first linkage portion 461, a second linkage portion 462, and a connecting body 463. The first linkage portion 461 and the second linkage portion 462 are columnar protrusions extending from the connecting body 463 towards the first end 110 along a first direction. The first linkage portion 461 and the second linkage portion 462 are located at the two ends of the connecting body 463, respectively. The first linkage portion 461 includes two first elastic blocks 4611, which are symmetrically arranged around the first linkage portion 461. Each first elastic block 4611 has a first protrusion 46112, which is formed by extending the first elastic block 4611 outward from its circumference. The first guide surface 46111 is an inclined surface on the first protrusion 46112, and the extension direction of the first guide surface 46111 is inclined to the first direction and away from the circumference of the first linkage portion 461. The second linkage part 462 includes two second elastic blocks 4621, which are symmetrically arranged around the second linkage part 462. Each second elastic block 4621 has a second protrusion 46212, which is formed by extending outward from the circumference of the second elastic block 4621. A second guide surface 46211 is an inclined surface on the second protrusion 46212, and the extension direction of the second guide surface 46211 is inclined to the first direction and away from the circumference of the second linkage part 462. In other embodiments, both the first linkage part 461 and the second linkage part 462 may be made of elastic material.

[0393] like Figure 59 As shown, the first linkage part 461 of the linkage rod 460 can be inserted into the second connecting hole 454 of the second rotating member 450 using the inclined surface of the first guide surface 46111 of the first elastic block 4611, and is limited by the first protrusion 46112 to prevent it from falling off. The second rotating member 450 can rotate relative to the first linkage part 461. The second linkage part 462 can be inserted into the first connecting hole 4108 of the first rotating member 410 using the second guide surface 46211 of the second elastic block 4621, and is limited by the second protrusion 46212 to prevent it from falling off. The first rotating member 410 can rotate relative to the second linkage part 462. The linkage rod 460 serves as the linkage device between the second rotating member 450 and the first rotating member 410. When the second rotating member 450 meshes with the stirring gear 310 and rotates along the Z direction with the stirring gear 310, the first rotating member 410 also rotates synchronously along the Z direction with the second rotating member 450 via the linkage rod 460.

[0394] Schematic illustration: The developing apparatus also includes a first elastic member 730, one end of which is connected to the first rotating member 410. The first elastic member 730 is configured to drive the first rotating member 410 to rotate. By providing the first elastic member 730, reverse rotation of the first rotating member 410 can be prevented.

[0395] like Figures 60-61 As shown, the upper cover 170 also includes a support rod 1701, which extends along a first direction from the side wall of the upper cover 170 near the first end 110 of the housing 100 toward the direction away from the first end 110. A first elastic member 730 is sleeved on the support rod 1701, and the first elastic member 730 can be a torsion spring. One end of the first elastic member 730 abuts against the side wall of the upper cover 170 near the first end 110, and the other end abuts against the first rotating member 410, and the first elastic member 730 can apply a force to the first rotating member 410 to rotate the first rotating member 410 in the Z direction. Since the second rotating member 450 and the first rotating member 410 will move relative to the linkage rod 460 in the Z direction, the second connecting hole 454 and the second mounting hole 455 of the second rotating member 450 and the first connecting hole 4108 and the first mounting hole 4105 of the first rotating member 410 will be located on the same straight line. In this case, the first rotating member 410 may reverse, that is, the first rotating member 410 may rotate in the opposite direction to the Z direction. The elastic force that the first elastic member 730 can apply to the first rotating member 410 can prevent the first rotating member 410 from reversing in this case.

[0396] During operation, the developing apparatus provided in this embodiment moves the translational member 420 to the left in the first direction by the first rotating member 410 abutting against the translational member 420, and moves the translational member 420 to the right in the first direction by the third elastic member 750 releasing the elastic force. While the translational member 420 moves, it drives the tested item 500 to move relative to the box 100.

[0397] When the developing device is installed into the image forming apparatus, and the developing device is not in operation (i.e., the power receiving device 320 is not receiving power from the image forming apparatus), the second rotating member 450 is in the initial position and the meshing section 4101 is engaged with the stirring gear 310; the first rotating member 410 and the second driven end 4211 of the translation member 420 are in abutting state, wherein the second abutting end 42112 is abutted at the first end H1 of the second flattening part 4171, and the third elastic member 750 is in a compressed state; the detected member 500 is in the detection position. The first elastic member 730 is in a deformed state and applies a force to the first rotating member 410 to rotate in the Z direction. However, since the first rotating member 410 is linked to the second rotating member 450 through the linkage rod 460, and the second rotating member 450 is engaged with the stirring gear 310, when the power receiving device 320 does not receive power from the image forming device, the first rotating member 410 does not rotate despite being subjected to the elastic force of the first elastic member 730.

[0398] When the power receiving device 320 receives the power output from the image forming device and starts to rotate, it drives the stirring gear 310 to rotate. The second rotating member 450 follows the stirring gear 310 and starts to rotate in the Z direction. The first rotating member 410 follows the second rotating member 450 to rotate via the linkage rod 460. At the same time, the elastic force of the first elastic member 730 on the first rotating member 410 is released. The elastic force of the first elastic member 730 on the first rotating member 410 can prevent the first rotating member 410 from rotating in the opposite direction to the Z direction, so that the first rotating member 410 always follows the second rotating member 450 to rotate in the Z direction. That is, the rotation of the first rotating member 410 is affected by the elastic force of the first elastic member 730 and the rotational force transmitted by the second rotating member 450 through the linkage rod 460.

[0399] As the first rotating member 410 rotates, the first end H1 of the second flattening part 4171 gradually rotates to abut the second abutting end 42112, and then the second end H2 abuts the second abutting end 42112. During the process from the first end H1 to the second end H2, that is, during the process of the second abutting end 42112 being abutted by the entire second flattening part 4171, the translation member 420 does not move, and the detected member 500 is always in the detection position.

[0400] During the rotation from the second end H2 abutting the second abutting end 42112 to the first recess B1 abutting the second abutting end 42112, i.e., during the second stage of abutting the second abutting end 42112, the second abutting end 42112 loses the abutting force applied to it by the first rotating member 410, and under the influence of the elastic force of the third elastic member 750, the translation member 420 moves to the right in the first direction, causing the detected item 500 to move from the detection position to the non-detection position. After the translation member 420 stops moving to the right after the second abutting end 42112 is abutted by the first recess B1, the detected item 500 is in the non-detection position.

[0401] The first rotating member 410 continues to rotate, and the second driven end 4211 is no longer abutted by the first recess B1, but by the first inclined surface K1 between the first recess B1 and the first tip T1, and the first tip T1 gradually rotates closer to the second abutting end 42112. During the process of the first inclined surface K1 abutting the second driven end 4211 and the first tip T1 approaching the second driven end 4211, that is, the process of the second abutting end 42112 abutting in the third stage, the translation member 420 moves to the left in the first direction, and the detected item 500 moves from the non-detection position to the detection position. When the second abutting end 42112 is abutted by the first tip T1, the translation member 420 stops moving to the left, and the detected item 500 is located in the detection position.

[0402] The contact process of the second driven end 4211 in the fourth and sixth stages is consistent with the contact process of the second driven end 4211 in the second stage. The translation member 420 moves to the right in the first direction, and the detected member 500 moves from the detection position to the non-detection position.

[0403] The contact process of the second driven end 4211 in the fifth and seventh stages is consistent with that in the third stage. The translational member 420 moves to the left in the first direction, and the detected member 500 moves from the non-detection position to the detection position. The difference is that, since the angle between the third inclined surface K3 and the first direction is smaller than the angle between the first inclined surface K1 and the first direction, and the angles between the first inclined surface K1 and the second inclined surface K2 and the first direction are the same, the contact time of the second driven end 4211 with the third inclined surface K3 is shorter than the contact time with the first inclined surface K1 and the second inclined surface K2. Therefore, the translational member 420 moves to the left in the first direction faster, and consequently, the detected member 500 moves from the non-detection position to the detection position faster.

[0404] When the second rotating member 450 rotates to the notch section 4102 opposite to the stirring gear 310, the second rotating member 450 disengages from the stirring gear 310 and stops rotating. The elastic force released by the deformation of the first elastic member 730 is exhausted. Therefore, the first rotating member 410 loses the rotational force exerted on it by the second rotating member 450 and the elastic force exerted on it by the first elastic member 730. The second abutting end 42112 abuts against the fixed position H3 of the first rotating member 410 and prevents rotation. The tested item 500 is held in the testing position, thereby completing the testing and the developing device works normally.

[0405] In other embodiments, in order to prevent the first rotating member 410 from continuing to rotate due to the incomplete release of the elastic force of the first elastic component 730 after the second rotating member 450 disengages from the stirring gear 310, a limiting member can be provided on the first rotating member 410 so that the limiting member interferes with the box body 100 and prevents it from continuing to rotate.

[0406] In this embodiment, when the second abutting end 42112 moves to abut against the first tip T1, the second tip T2, and the third tip T3, the tested component 500 is exactly in the detection position. In other embodiments, it can also be configured that when the second abutting end 42112 moves to any point on the first inclined surface K1, the second inclined surface K2, and the third inclined surface K3, the tested component 500 enters the detection position.

[0407] In order to meet the detection requirements of the image forming apparatus, the length, number and shape of the second flat part 4171 on the first rotating member 410, the recesses and the tip can be set according to the specific requirements of the image forming apparatus.

[0408] Through the above process, the image forming apparatus can detect information about the developing apparatus (such as different models, different capacities, and newness or oldness) by detecting changes in the movement speed of the detected object 500, the number of times the detected object 500 is in the detection position, and the length of the interval.

[0409] In one possible implementation, the other end of the translation member 420 is provided with a clamping part 425, the tested member 500 is rotatably mounted on the second end 120, one end of the tested member 500 is provided with a clamped part 540 connected to the clamping part 425, the other end of the tested member 500 is provided with a tested part 5007, and the rotation axis of the tested member 500 has an angle with the first direction.

[0410] like Figure 61 and Figure 62 As shown schematically, a top cover 170 is provided at the fifth end 150 of the box body 100. The top cover 170 has mounting holes 171. In this embodiment, there are two mounting holes 171, symmetrically arranged in the third direction. When the translational member 420 includes the first rod portion 428, the clamping portion 425 is located at the second end 120 of the box body 100 and connected to the end of the first rod portion 428 near the second end 120.

[0411] For example, the test piece 500 includes a mounting protrusion 521 and a substrate 522. There can be two mounting protrusions 521, one above and one below the substrate 522 in a third-direction direction. The test piece 500 can be supported by the upper cover 170 by inserting the two mounting protrusions 521 into the two mounting holes 171 of the upper cover 170. The test piece 500 can pivot relative to the upper cover 170 in the R or L direction within a plane formed by the first and second directions, using the mounting protrusions 521 as pivot points. In this embodiment, the rotation axis of the test piece 500 extends along a third-direction direction. In other embodiments, the rotation axis of the test piece 500 may also have an angle with both the first and third directions. The clamping portion 540 is connected to the clamping portion 425 of the translation member 420. The test portion 5007 is used to contact a test piece within the image forming apparatus, causing the developing apparatus to be detected within the image forming apparatus. When the translation member 420 moves left and right in the first direction, the clamped part 540 of the detected part 500 is pushed to the left or pulled to the right by the translation member 420, so that the detected part 500 will follow the translation member 420 to rotate with the mounting protrusion 521 as the pivot point, so that the detected part 5007 can contact or detach from the detection element in the image forming apparatus.

[0412] Optional, such as Figure 146 and Figure 147As shown, the left end of the translation member 420 is provided with a transmission hole 4202, and a transmission column 4203 is provided in the transmission hole 4202. A fourth support base 1204 is integrally formed on the second end 120 of the housing 100. The fourth support base 1204 has a pivot hole 12041. The tested item 500 is rotatably mounted on the fourth support base 1204. The tested item 500 includes a tested part 5007, a base plate 522, and a clamping part 540. The base plate 522 is provided with a mounting protrusion 521 extending along the second direction. The mounting protrusion 521 is pivotally mounted in the pivot hole 12041 on the fourth support base 1204 about an axis parallel to the second direction. The detection part 5007 is integrally formed with the substrate 522, and the clamping part 540 is integrally formed with the substrate 522. The detection part 5007 is used to contact the detection element in the image forming apparatus and apply force to the detection element to move the detection element. The clamping part 540 includes a driven groove 541, and the transmission column 4203 extends into the driven groove 541 and slides between the driven groove 541 and the driven groove 541.

[0413] When the translational member 420 displaces relative to the housing 100 in the first direction, it can drive the tested item 500 to rotate synchronously along the rotation axis. That is, the tested item 500 can rotate between the detection position and the non-detection position as the translational member 420 moves. The rotatable mounting of the tested item 500 on the second end 120 reduces the space required for the tested item 500, which is beneficial for the miniaturization of the developing apparatus and the image forming apparatus. Furthermore, the operation of the tested item 500 is more stable, making it less likely to generate erroneous signals during the detection process.

[0414] The test piece 500 provided in this embodiment can also be used in other developing apparatuses with translational members 420, but the translational members 420 will not rotate relative to the housing 100.

[0415] Example 7

[0416] Unless otherwise specified, the structure of the developing apparatus in this embodiment is the same as that in Embodiment 6. The main difference in this embodiment is that the structure of the first rotating member 410 is optimized and the working mode of the first elastic member 730 is changed.

[0417] In one possible implementation, such as Figures 63-67 As shown, a connecting post 41016 is provided on the first rotating member 410. The axis of the connecting post 41016 is on the same straight line as the rotation axis of the first rotating member 410. The first elastic member 730 abuts against the side wall of the connecting post 41016. A preload block 41017 is protruding on the side wall of the connecting post 41016. The preload block 41017 is configured to abut against the first elastic member 730.

[0418] like Figure 63 and Figure 64As shown, based on the functions of each part of the first rotating member 410, this embodiment divides the first rotating member 410 into an abutting part 410A and a non-abutting part 410B. The abutting part 410A includes a plurality of first transmission protrusions 417 consistent with Embodiment 13. The non-abutting part 410B includes a connecting post 41016, a first connecting hole 4108, a first mounting hole 4105, and a preload block 41017. The abutting part 410A radially surrounds the non-abutting part 410B. The first rotating member 410 is connected to the linkage rod 460 through the first connecting hole 4108, allowing the first rotating member 410 to rotate with the second rotating member 450. The connecting post 41016 is formed by the first rotating member 410 extending towards the first end 110 along a first direction. The first mounting hole 4105 penetrates the entire connecting post 41016 and the entire first rotating member 410 in the first direction. The first rotating member 410 is rotatably fixedly mounted on the first end 110 of the housing 100 through the first mounting hole 4105. The connecting post 41016 has an outer surface. The prestressing block 41017 is a block-shaped object that extends radially outward from the outer surface of the connecting post 41016. The prestressing block 41017 includes a first side surface 41018 and a second side surface 41019, which are two opposing surfaces on the prestressing block 41017.

[0419] like Figures 65-66 As shown, in this embodiment, a first elastic component 730 is disposed at the first end 110 of the box body 100. The first elastic component 730 includes a fixing part 731 and a preload part 732. The preload part 732 is formed by the fixing part 731 extending rearward along the second direction. After the first elastic component 730 is fixedly installed at the first end 110 of the box body 100 through the fixing part 731, the preload part 732 contacts the first rotating member 410. After the preload part 732 contacts the first rotating member 410 and deforms, it forms a first angle α with the second direction. In the third direction, the end of the preload part 732 closer to the fixing part 731 is lower than the end farther from the fixing part 731. As the first rotating member 410 rotates, the size of the first angle α between the preload part 732 and the second direction also changes accordingly. The distance between the two ends of the preload part 732 in the third direction also changes accordingly.

[0420] When the developing apparatus is installed into the image forming apparatus, and the power receiving device 320 is not receiving power from the image forming apparatus, the preload portion 732 abuts against the outer surface of the connecting post 41016 of the first rotating member 410. At this time, in the rotation direction of the first rotating member 410, i.e., in the Z direction, the preload portion 732 is located upstream of the preload block 41017, and the preload portion 732 has a first angle α with the second direction. After the power receiving device 320 receives power from the image forming apparatus, it transmits power through the stirring gear 310. The second rotating member 450 rotates with the stirring gear 310, and the first rotating member 410 starts to rotate through the linkage rod 460. It can be seen that when the first rotating member 410 rotates with the second rotating member 450 through the linkage rod 460, the second rotating member 450 and the first rotating member 410 also rotate relative to the linkage rod 460 in the Z direction.

[0421] like Figure 66 and Figure 67As shown, as the first rotating member 410 rotates following the second rotating member 450, the prestressing part 732 initially abuts against the outer surface of the connecting column 41016. At this time, the first included angle α between the prestressing part 732 and the second direction remains unchanged. As the first rotating member 410 rotates, the prestressing part 732 no longer abuts against the outer surface of the connecting column 41016. Instead, the prestressing block 41017 rotates along the Z direction from downstream of the prestressing part 732 to abut against the prestressing part 732, causing the prestressing part 732 to abut against the first side surface 41018 of the prestressing block 41017. As the first rotating member 410 continues to rotate, the prestressing part 732 remains in contact with the first side surface 41018 of the prestressing block 41017, and the first included angle α between the prestressing part 732 and the second direction gradually increases. During the process of the prestressing part 732 moving from abutting against the outer surface of the connecting column 41016 to abutting against the first side surface 41018 of the prestressing block 41017, the second rotating member 450 and the first rotating member 410 also rotate relative to the linkage rod 460 in the Z direction. When the first rotating member 410 continues to rotate, causing the first side surface 41018 to abut against the prestressing part 732 to change to the second side surface 41019 abutting against the prestressing part 732, the angle of the first included angle α reaches its maximum value, that is, the first included angle α has a second angle. At the same time, the second connecting hole 454 and the second mounting hole 455 of the second rotating member 450 and the first connecting hole 4108 and the first mounting hole 4105 of the first rotating member 410 are located on the same straight line, and the second rotating member 450 has the possibility of reversing. In order to prevent the first rotating member 410 from reversing, the prestressing part 732 abuts against the second side surface 41019 and applies a spring force with a component force in the Z direction to the first rotating member 410, so that the first rotating member 410 continues to rotate in the Z direction. The first rotating member 410 continues to rotate in the Z direction, and the preloaded part 732 abuts against the outer surface of the connecting column 41016 again, and the first included angle gradually decreases to the first angle. When the second rotating member 450 stops rotating, the first rotating member 410 also stops rotating.

[0422] With the above settings, when the second connecting hole 454 and the second mounting hole 455 of the second rotating member 450 and the first connecting hole 4108 and the first mounting hole 4105 of the first rotating member 410 are on the same straight line, a preload is provided to the first rotating member 410 to allow the first rotating member 410 to continue rotating in the Z direction, so that the translational member 420 and the first rotating member 410 can make contact smoothly, thereby ensuring the smooth completion of the entire testing process.

[0423] Example 8

[0424] This embodiment provides a developing apparatus, which differs from the above embodiments in that the structures of the first rotating member 410 and the transmission member are different.

[0425] In one possible implementation, such as Figures 68-78 As shown, the first rotating member 410 is provided with a first transmission protrusion 417, which is used to contact the transmission member and drive the transmission member to move relative to the box 100.

[0426] For example, the first transmission protrusion 417 can be integrally formed on the first rotating member 410.

[0427] In this structure, a first transmission protrusion 417 is provided on the first rotating member 410. When the first rotating member 410 rotates relative to the housing 100, the first transmission protrusion 417 can interfere with the transmission member, causing the transmission member to move relative to the housing 100. The movement of the transmission member causes the detected item 500 to move relative to the housing 100, thereby enabling the image forming apparatus to acquire information from the developing apparatus.

[0428] Schematic, the transmission component includes a translational member 420 extending along a first direction. One end of the translational member 420 is provided with a first driven portion 421 for contacting a first transmission protrusion 417. The first driven portion 421 and at least one of the first transmission protrusions 417 have a first transmission surface intersecting the first direction.

[0429] The translational member 420 extends along a first direction, and the first driven part 421 is located at the end of the translational member 420 facing the first end 110. When the first rotating member 410 rotates relative to the housing 100, the first driven part 421 interferes with the first transmission protrusion 417. Under the action of the first transmission surface, the first transmission protrusion 417 generates a component force along the first direction on the first driven part 421. This component force causes the translational member 420 to displace relative to the housing 100 in the first direction. It is worth mentioning that the first transmission surface can be provided only on the first transmission protrusion 417 or only on the first driven part 421, or the first transmission surface can be provided on both the first transmission protrusion 417 and the first driven part 421.

[0430] In one possible implementation, a cylindrical section 418 is provided on the first rotating member 410, a first transmission protrusion 417 is provided on the circumferential surface of the cylindrical section 418, and a first transmission surface is provided on the first transmission protrusion 417.

[0431] For example, such as Figures 68-75 As shown, a first recessed groove 4181 is provided on the circumferential surface of the cylindrical section 418, and a first transmission protrusion 417 is disposed in the first groove 4181. The end of the first driven part 421 extends into the first groove 4181, and the first groove 4181 is configured to drive the translational part 420 to generate displacement relative to the box body 100 in a first direction when the first rotating member 410 rotates.

[0432] Figures 68-75As shown, the first rotating member 410 also includes a gear portion 4104 and a first mounting hole 4105. The first mounting hole 4105 penetrates the gear portion 4104 and the cylindrical section 418. In a first direction, the gear portion 4104 is further away from the first end 110 than the cylindrical section 418. The gear portion 4104 is provided with a meshing section 4101 and a notch section 4102. The meshing section 4101 has teeth arranged around the circumference of the gear portion 4104. The meshing section 4101 can mesh with the stirring gear 310, causing the first rotating member 410 to rotate as a whole with the stirring gear 310. However, when the notch section 4102 is opposite to the stirring gear 310, the first rotating member 410 disengages from the stirring gear 310 and does not rotate with the stirring gear 310. The first groove 4181 is disposed on the outer circumferential surface of the cylindrical section 418 and is recessed inward along the radial direction of the cylindrical section 418. In the first direction, the first groove 4181 is closer to the first end 110 of the housing 100 than the gear portion 4104. The first groove 4181 is disposed around the circumference of the cylindrical section 418 and extends in the circumferential direction around the circumferential surface of the cylindrical section 418. The number of first transmission protrusions 417 can be multiple, and each first transmission protrusion 417 can be disposed on the cylindrical section 418 by an integral molding process. The multiple first transmission protrusions 417 cause the first groove 4181 to be bent in the axial direction of the cylindrical section 418, that is, the first groove 4181 has multiple groove positions located at different positions in the first direction. The lengths of the grooves in the circumferential direction may be inconsistent. The grooves are connected by a slope that intersects the first direction, i.e., the first transmission surface, or a straight surface that is parallel to the first direction. The angles of inclination between each slope and the first direction are different. For example, groove A7 is closer to the gear part 4104 in the first direction than groove A1, and groove A6 is farther away from the gear part 4104 in the first direction than groove A1. Grooves A1 and A9 are located between grooves A3 and A4 in the first direction. However, the positions of grooves A1 and A9 in the first direction are also different. In this embodiment, the entire first groove 4181 is divided into the following segments according to the change in the position of the groove position in the first direction in the rotation direction of the first rotating member 410: the first groove segment is from groove position A1 to groove position A2; the second groove segment is from groove position A2 to groove position A3; the third groove segment is from groove position A3 to groove position A4; the fourth groove segment is from groove position A4 to groove position A5; the fifth groove segment is from groove position A5 to groove position A6; the sixth groove segment is from groove position A6 to groove position A7; the seventh groove segment is from groove position A7 to groove position A8; and the eighth groove segment is from groove position A8 to groove position A9.The first groove segment is a circumferentially oriented groove segment. The first groove segment extends along the circumferential direction of the cylindrical segment 418, forming an arc surface. That is, the position of the first groove segment in the first direction remains unchanged relative to the gear portion 4104. The second, fourth, and sixth groove segments are of the same type, meaning that the groove positions arranged along the N direction are closer to the gear portion 4104 upstream than upstream in the first direction. The second, fourth, and sixth groove segments extend in a direction parallel to the first direction. The third, fifth, and seventh groove segments are... For groove segments of the same type, i.e., grooves arranged along the N direction, the upstream and downstream grooves in the first direction are further away from the gear part 4104 than the upstream grooves. The third, fifth, and seventh groove segments have inclined surfaces extending in a direction intersecting the first direction and moving away from the gear part 4104 along the N direction. The inclined surfaces form an angle with the first direction. The inclined surface in the third groove segment forms an angle α1 with the first direction, the inclined surface in the fifth groove segment forms an angle α2 with the first direction, and the inclined surface in the seventh groove segment forms an angle α3 with the first direction, where α1 = α2 > α3. The N direction is the direction opposite to the rotation direction of the first rotating member 410. In this embodiment, the orientation of the first groove 4181 around the circumference of the cylindrical segment 418, the position and number of grooves on the first groove 4181 are not fixed and can be set according to actual needs.

[0433] Figure 76 As shown, the first support post 720 is disposed on the first cover 610. Specifically, the first support post 720 is formed by the first cover 610 extending from its inner wall in a first direction in a direction close to the first end 110. The first rotating member 410 can be inserted into the first support post 720 through the first mounting hole 4105 so that the first rotating member 410 is supported by the first cover 610. The first rotating member 410 can rotate relative to the first support post 720, that is, the first rotating member 410 is rotatably mounted on the first cover 610.

[0434] Figure 77As shown, the main difference between the translation member 420 provided in this embodiment and the translation member 420 in embodiment 4 is that the first driven part 421, away from the first rod part 428, is provided with a second driven end 4211. The second driven end 4211 is formed by the first driven part 421 extending to the right in the first direction and then extending upward and downward in the third direction. The second driven end 4211 is located outside the housing 100 in the first direction and moves only in the first direction. The second driven end 4211 can extend upward into the first groove 4181 on the first rotating member 410 and be located in each groove position in the first groove 4181 according to the rotation of the first rotating member 410 and be abutted by the first groove 4181, thereby causing the second driven end 4211 to move in the first direction. The abutment between the second driven end 4211 and the first groove 4181 is a smooth abutment. It is worth mentioning that a third elastic element 750 is also fitted on the first rod 428, which is used to drive the translational member 420 to move to the right.

[0435] This structure, through the cooperation between the first transmission protrusion 417 in the first groove 4181 and the end of the first driven part 421, enables the first rotating member 410 to drive the translational member 420 to move relative to the box body 100 in the first direction when rotating.

[0436] After the developing apparatus is installed into the image forming apparatus, before the power receiving unit 321 receives power from the image forming apparatus (i.e., the first rotating member 410 does not rotate), the second driven end 4211 is located within the first groove 4181 and in groove A1. The third elastic member 750 is always in a compressed state and applies a rightward force to the first driven part 421 in the first direction. The second driven end 4211, located within the first groove 4181, is abutted by the first groove 4181 in the first direction, thus preventing the first driven part 421 from being moved to the right by the elastic force of the third elastic member 750 in the first direction. At this time, the detected item 500 is in the detection position. As the first rotating member 410 rotates, the second driven end 4211 will be in different groove positions within the first groove 4181. When the second driven end 4211 is located in the first groove segment of the first groove 4181, the translational member 420 does not move, and the detected item 500 remains in the detection position.

[0437] As the first rotating member 410 continues to rotate, the second driven end 4211 is no longer abutted by the groove position A2, and the groove position A3 begins to move closer to the second driven end 4211. During the process of the groove position A3 moving closer to the second driven end 4211, since the second driven end 4211 loses the abutting force of the first groove 4181 in the first direction, the second driven end 4211, under the influence of the elastic force of the third elastic member 750, shifts to the right along the first direction within the second groove segment. Simultaneously, the translational member 420 also moves to the right in the first direction, causing the detected member 500 to move from the detection position to the non-detection position. When the second driven end 4211 is located in the groove position A3, it stops moving to the right after being abutted again by the first groove 4181 in the first direction. At this time, the detected member 500 is in the non-detection position.

[0438] Affected by the rotation of the first rotating member 410, the second driven end 4211 is no longer located in the A3 groove position, and the A4 groove position begins to move closer to the second driven end 4211. During the process of the A4 groove position moving closer to the second driven end 4211, the second driven end 4211 is abutted in the third groove section. When the second driven end 4211 is abutted by the A3 groove position, it does not move in the first direction. When the second driven end 4211 abuts against the first transmission surface, it moves to the left in the third groove section along the first direction. At the same time, the translation member 420 also moves to the left in the first direction and causes the detected member 500 to move from the non-detection position to the detection position. At this time, the third elastic member 750 is compressed.

[0439] The movement of the second driven end 4211 in the fourth and sixth groove segments is consistent with its movement in the second groove segment. The translation member 420 moves to the right in the first direction, causing the detected component 500 to move from the detection position to the non-detection position. The movement of the second driven end 4211 in the fifth and seventh groove segments is consistent with its movement in the third groove segment. When the second driven end 4211 comes into contact with the straight surface, it does not move in the first direction. When the second driven end 4211 comes into contact with the first transmission surface, it moves to the left in the third groove segment along the first direction. Simultaneously, the translation member 420 also moves to the left in the first direction, causing the detected component 500 to move from the non-detection position to the detection position. The difference is that, because the included angle α1 = α2 > α3, the time the second driven end 4211 is contacted by the first transmission surface in the seventh groove segment is shorter, meaning the time the second driven end 4211 moves to the left in the first direction is shorter. Consequently, the movement speed of the detected component 500 increases, meaning the time it takes for the detected component 500 to reach the detection position is shorter.

[0440] As the first rotating member 410 rotates, when the second driven end 4211 is located in the A9 groove, the notch 4102 of the first rotating member 410 is opposite to the stirring gear 310, the first rotating member 410 stops rotating, and the detected member 500 remains in the detection position. It can be seen that the direction, distance, speed, and number of movements of the translational member 420 are determined by the internal structure of the first groove 4181, while the direction, distance, speed, and number of movements of the translational member 420 determine the direction, distance, speed, and number of movements of the detected member 500.

[0441] like Figure 78 As shown, in other embodiments, to simplify the structure of the developing apparatus and save materials, the third elastic element 750 can be omitted, and the first groove 4181 can be optimized. The first groove 4181 has a groove wall 41811 away from the gear part 4104. The groove wall 41811 surrounds the entire circumference with an irregular orientation. Taking the N direction as a reference, the groove wall 41811 can be divided into multiple groove wall segments according to different orientations. For example, the orientation from C1 to C2 is a regular orientation along the N direction; C2 to C3 is an orientation that intersects the first direction and is close to the gear part 4104 along the N direction, with a smooth arc or slope between C2 and C3; C3 to C4 is an irregular orientation that first approaches the gear part 4104 and then moves away from the gear part 4104 along the N direction, with a smooth arc between C3 and C4; C4 to C5 is an orientation that intersects the first direction and is away from the gear part 4104 along the N direction, with a smooth arc or slope between C4 and C5. It is known that none of the directions within the groove wall 41811 are parallel to the first direction. The second driven end 4211 moves to the left or right in the first direction entirely according to the direction of the groove wall 41811, and is abutted by the groove wall 41811, thereby enabling the inspected part 500 to move between the inspection position and the non-inspection position.

[0442] When the developing device is removed from the image forming apparatus, the tested component 500 and the first rotating component 410 can be manually adjusted to reset them, so that the developing device is in a non-testing state.

[0443] Through the above process, the image forming apparatus can detect information about the developing apparatus (such as different models, different capacities, and newness or oldness) by detecting changes in the movement speed, number of touches, and length of intervals of the tested object 500, and facilitates the reset of the tested object 500.

[0444] Example 9

[0445] like Figures 79-86 As shown, the difference between this embodiment and embodiment 8 lies in the improvements to the structure of the upper cover 170 and the first rotating member 410, and the elimination of the translational member 420. In this embodiment, both the X and Y directions are perpendicular to the second direction.

[0446] In one possible implementation, a first transmission protrusion 417 is disposed on the side of the first rotating member 410 facing the first end 110. The transmission member includes a swing member 430 pivotally mounted on the housing 100. The first transmission protrusion 417 is configured to drive the swing member 430 to swing around the housing 100. At least one of the first transmission protrusion 417 and one end of the swing member 430 has a first transmission surface.

[0447] like Figures 79-80 As shown, the top cover 170 includes a first sidewall 177 located at the first end 110 of the box body 100 and a second sidewall 178 located at the second end 120 of the box body 100. The first sidewall 177 is provided with a first support column 720 integrally formed with the top cover 170. The first support column 720 extends from the first sidewall 177 in a direction away from the first sidewall 177 along a first direction. The second sidewall 178 is provided with a second support column 780 integrally formed with the top cover 170 and a connecting post 1710. Both the second support column 780 and the connecting post 1710 extend from the second sidewall 178 in a direction away from the second sidewall 178 along the first direction. The second support column 780 includes a first mounting portion 781 and a first base 782. In the first direction, the first mounting portion 781 is further away from the second sidewall 178 than the first base 782. The connecting post 1710 includes a second limiting protrusion 17101, a first connecting portion 17102, and a second base 17103. In a first direction, the first connecting portion 17102 is located between the second limiting protrusion 17101 and the second base 17103. The upper cover 170 is also provided with a receiving groove 179 and a support portion 176 located at the rear end of the upper cover 170. The support portion 176 is located within the receiving groove 179. In the first direction, the support portion 176 is closer to the first sidewall 177 relative to the second sidewall 178. Since the first sidewall 177 is located at the first end 110 of the box 100 and the second sidewall 178 is located at the second end 120 of the box 100, the support portion 176 is closer to the first end 110 relative to the second end 120. That is, the distance from the support portion 176 to the first end 110 is not greater than the distance from the support portion 176 to the second end 120.

[0448] like Figures 81-83As shown, there are multiple first transmission protrusions 417. The first rotating member 410 includes a gear portion 4104, which is further away from the first end 110 than the multiple first transmission protrusions 417 in a first direction. The first rotating member 410 also includes a first mounting hole 4105 penetrating the first rotating member 410. The first mounting hole 4105 is mounted on the first support post 720 of the upper cover 170, that is, the first rotating member 410 is rotatably mounted on the upper cover 170 through the first mounting hole 4105. The gear portion 4104 includes a meshing section 4101 and a notch section 4102. The meshing section 4101 can mesh with the stirring gear 310 so that the first rotating member 410 rotates as a whole with the stirring gear 310. However, when the notch section 4102 is opposite to the stirring gear 310, the first rotating member 410 does not rotate with the stirring gear 310. It is known that the arc of the meshing section 4101 and the arc of the notch section 4102 together form a complete circle. The plurality of first transmission protrusions 417 include a first contact protrusion 417A, a second contact protrusion 417B, and a third contact protrusion 417C arranged around the circumference of the first rotating member 410. In this embodiment, the first contact protrusion 417A, the second contact protrusion 417B, and the third contact protrusion 417C are all provided with a first transmission surface. The first transmission surfaces on the second contact protrusion 417B and the third contact protrusion 417C are arc surfaces, and the first transmission surface on the first contact protrusion 417A is an arc surface from point G to point E. Figure 83 As shown, the first contact protrusion 417A also has an arc surface extending from point E to point F. Specifically, the arc surface from point E to point F is equidistant from the axis of rotation of the first rotating member 410. On the arc surface from point G to point E, the distance from point G to the axis of rotation of the first rotating member 410 is greater than the distance from point E to the axis of rotation of the first rotating member 410. Those skilled in the art can set the angle of the first transmission surface on each of the first transmission protrusions 417 as needed, so that the swing member 430 can have different swing speeds. In other embodiments, the first transmission surfaces on the first contact protrusion 417A, the second contact protrusion 417B, and the third contact protrusion 417C can also be inclined surfaces. Alternatively, the first transmission surface can also be provided at the end of the swing member 430.

[0449] In this embodiment, the number and shape of the first transmission protrusion 417 are not limited and can be set according to actual needs.

[0450] like Figure 79 and Figure 84As shown, the swing member 430 is located at the fifth end 150 of the housing 100 and is detachably mounted on the upper cover 170. The swing member 430 includes a second rod portion 434, a locking portion 435, and a second driven portion 433. The second rod portion 434 is located within the receiving groove 179 of the upper cover 170 but does not directly contact the bottom of the receiving groove 179, meaning the swing member 430 is suspended relative to the receiving groove 179. The locking portion 435 is movably engaged with the support portion 176 of the upper cover 170, and the distance from the locking portion 435 to the first end 110 is not greater than the distance from the second end 120 of the locking portion 435. The swing member 430 can be engaged with the support member 176 via the snap-fit ​​part 435, causing both ends of the swing member 430 to swing towards the bottom of the receiving groove 179 and away from the bottom of the receiving groove 179. That is, the snap-fit ​​part 435 and the support member 176 can serve as the fulcrum of the swing member 430, causing the second driven part 433 to swing up and down in the Y direction. The second driven part 433 is the end of the swing member 430 near the first end 110 of the box body 100. The second driven part 433 is used to abut against the first transmission protrusion 417 on the first rotating member 410. Since the first rotating member 410 can rotate with the stirring gear 310, the second driven part 433 can abut against multiple first transmission protrusions 417 on the cylindrical section 418 in sequence. It is worth mentioning that when the swing member 430 swings relative to the box body 100, the tested item 500 can move relative to the box body 100.

[0451] Figure 79 and Figures 84-86 As shown, the test piece 500 is rotatably mounted on the second end 120, the rotation axis of the test piece 500 is parallel to the first direction, and one end of the test piece 500 is movably connected to the swing member 430.

[0452] The swing member 430 includes a second rod portion 434, the end of which near the second end 120 of the housing 100 is a placement end 436. For example, the swing axis of the swing member 430 can be parallel to the second direction; that is, the placement end 436 of the swing member 430 can be along... Figure 84 It swings up and down in the X direction. Figure 84 As shown, the placement end 436 includes a placement platform 4361, an insertion protrusion 4362, a connecting protrusion 4363, and an inclined portion 4364. The inclined portion 4364 is used to connect the placement platform 4361 and the second rod portion 434. The placement platform 4361 has a block-shaped object, and the insertion protrusion 4362 is located on the block-shaped object and extends to the left in a first direction. The connecting protrusion 4363 is located on the lower surface of the inclined portion 4364 and extends to the right in the first direction, and a limiting block (not shown) is provided at the end of the connecting protrusion 4363 near the second end 120.

[0453] like Figure 79 and Figure 85As shown, the test piece 500 includes a mounting through hole 501, a movable groove 502, a placement portion 503, and a contact portion 504. The contact portion 504 is used to contact the test piece within the image forming apparatus so that the developing apparatus is recognized by the image forming apparatus. The placement portion 503 contacts the placement platform 4361, i.e., the placement platform 4361 of the swing member 430 is used to place the test piece 500. For example, a top cover 170 is provided on the fifth end 150 of the housing 100. The top cover 170 includes a second sidewall 178 located at the second end 120 of the housing 100. A second support column 780 is provided on the second sidewall 178. The second support column 780 has a first mounting portion 781 away from the second sidewall 178. The first mounting portion 781 is inserted into the mounting through hole 501, so that the test piece 500 can be supported by the top cover 170, and the test piece 500 can be rotated using the first mounting portion 781 of the second support column 780 as a rotation point. The length of the movable groove 502 in the second direction is greater than the length in the third direction. The insertion protrusion 4362 on the swing member 430 can be inserted into the movable groove 502 and move in the movable groove 502. That is, the swing member 430 is connected to the tested member 500 by inserting the insertion protrusion 4362 into the movable groove 502 and placing the placement part 503 on the placement platform 4361.

[0454] like Figure 80 and Figure 86 As shown, a third elastic element 750 is also provided at the second end 120 of the box body 100. The third elastic element 750 can be a tension spring and can be stretched. A connecting post 1710 is provided on the second side wall 178 of the top cover 170. The connecting post 1710 includes a second limiting protrusion 17101, a first connecting portion 17102, and a second base 17103. In a first direction, the first connecting portion 17102 is located between the second limiting protrusion 17101 and the second base 17103, and the second base 17103 is connected to the second side wall 178. One end of the third elastic element 750 is connected to the connecting protrusion 4363 on the swing member 430 and is prevented from falling off by a limiting block. The other end is connected to the first connecting portion 17102 of the connecting post 1710 and is prevented from falling off by the second limiting protrusion 17101. Since the top cover 170 is fixedly installed on the box body 100, the end of the third elastic member 750 connected to the first connecting part 17102 does not move, but the swing member 430 will swing, which will cause the end of the third elastic member 750 connected to the connecting protrusion 4363 to move, thereby stretching the third elastic member 750.

[0455] When the placement end 436 of the swing member 430 is in the upward swing state, the detected member 500 rotates from the non-detection position to the detection position. After the detected member 500 rotates to the detection position, the contact part 504 of the detected member 500 is in contact with the detected member in the image forming apparatus. At this time, the third elastic member 750 is in the stretched state.

[0456] When the first rotating member 410 stops applying force to the oscillating member 430, the third elastic member 750 uses its own elastic force to return to the unstretched state and causes the placement end 436 of the oscillating member 430 to swing downward. At this time, the detected member 500 rotates from the detection position to the non-detection position. After the detected member 500 rotates to the non-detection position, the contact portion 504 of the detected member 500 changes from a contact state to a non-contact state with the detection member in the image forming apparatus.

[0457] In this embodiment, during the rotation of the first rotating member 410, the first transmission protrusion 417 on the first rotating member 410 interferes with the second driven part 433 of the swing member 430. Under the action of the first transmission surface, the swing member 430 swings relative to the box 100, thereby causing the detected member 500 to move relative to the box 100.

[0458] During the operation of the developing apparatus provided in this embodiment, when the developing apparatus is installed in the image forming apparatus but the power receiving unit 321 has not yet started receiving power from the image forming apparatus, the meshing section 4101 of the first rotating member 410 meshes with the stirring gear 310, and the second driven part 433 of the swing member 430 abuts against the E position of the first contact protrusion 417A. At this time, the second driven part 433 of the upward swing member 430 is in a downward swinging state under the force of the first contact protrusion 417A, and the detected member 500 is in the detection position.

[0459] When the power receiving unit 321 begins to receive power from the image forming apparatus and transmits the power to the stirring gear 310, the stirring gear 310 begins to rotate, and the first rotating member 410, which meshes with the stirring gear 310, begins to rotate. As the first rotating member 410 rotates, the second driven part 433 moves along the arc surface formed by E and F from being pressed at point E to being pressed at point F. During this process, the oscillation state of the oscillating member 430 remains unchanged, and the detected member 500 is always in the detection position.

[0460] When the first rotating member 410 rotates until the second driven portion 433 of the swing member 430 disengages from the first contact protrusion 417A, the second driven portion 433 of the swing member 430 loses its downward swinging force, the swing member 430 resets, and the detected member 500 moves from the detection position to the non-detection position. While the second driven portion 433 is located between the first contact protrusion 417A and the second contact protrusion 417B, the detected member 500 is in the non-detection position.

[0461] When the first rotating member 410 rotates to the point where the second contact protrusion 417B abuts against the second driven part 433, the second driven part 433, under the force of the second contact protrusion 417B, gradually swings downward along the arc surface of the second contact protrusion 417B, i.e., the first transmission surface, and the detected member 500 moves from the non-detection position to the detection position. When the second driven part 433 disengages from the second contact protrusion 417B and swings upward, the detected member 500 moves from the detection position to the non-detection position. Similarly, the abutment process between the third contact protrusion 417C and the second driven part 433 is the same as the abutment process between the second contact protrusion 417B and the second driven part 433.

[0462] When the first rotating member 410 rotates to the point where the notched section 4102 is opposite to the stirring gear 310, the first rotating member 410 stops rotating. Simultaneously, the second driven part 433 again abuts against the first contact protrusion 417A, but this time the second driven part 433 abuts against point G instead of point E. The tested item 500 remains in the testing position until the developing device is removed from the image forming apparatus. When the first rotating member 410 stops rotating and the tested item 500 is in the testing position, the entire testing process for installing the developing device is complete, and the developing device begins normal operation.

[0463] Example 10

[0464] like Figures 87 to 89 As shown, the difference between this embodiment and embodiment 2 is that in this embodiment, the first rotating member also serves as a translational member, and will be referred to as the first rotating member for ease of description.

[0465] In one possible implementation, the first end 110 of the housing 100 is provided with an abutment 612. When the transmission unit receives the power of the transmission assembly to generate a first movement, it contacts the abutment 612 and is subjected to the reaction force applied by the abutment 612 to generate a second movement.

[0466] For example, a first cover 610 is detachably mounted on the first end 110, and an abutment 612 can be mounted on the first cover 610. Specifically, the abutment 612 can be integrally formed on the side of the first cover 610 facing the first end 110. Schematic, the first movement is the rotation of a component of the transmission unit relative to the box 100, and the second movement is the displacement of the component relative to the box 100 in a first direction.

[0467] In this structure, when the transmission unit generates the first movement, the abutment member 612 applies a force to the transmission unit, causing the transmission unit to generate the second movement. The second movement of the transmission unit drives the tested item 500 to move relative to the box 100.

[0468] In one possible implementation, the transmission unit includes a first rotating member 410 extending along a first direction, the first rotating member 410 being capable of displacement relative to the housing 100 in the first direction. The transmission assembly is configured to drive the first rotating member 410 to rotate, the first rotating member 410 having a first abutting protrusion 412, at least one of the abutting member 612 and the first abutting protrusion 412 having a first driving surface I1 intersecting the first direction. The first driving surface I1 can be an inclined plane tilted in the first direction.

[0469] In this embodiment, the first rotating member 410 extends from the first end 110 of the box 100 to the second end 120. When the first rotating member 410 is displaced relative to the box 100 in the first direction, the end of the first rotating member 410 toward the second end 120 can drive the detected member 500 to move relative to the box 100.

[0470] For example, the abutment 612 is provided with a recess B, the first abutment protrusion 412 abuts against the abutment 612, and the first abutment protrusion 412 can extend into the interior of the recess B. The recess B and at least one of the first abutment protrusion 412 have a first driving surface I1 that is inclined relative to the first direction.

[0471] Schematic, the abutment 612 is aligned with the first rotating member 410. When the first rotating member 410 rotates relative to the box 100, the abutment 612 pushes the first rotating member 410 to displace relative to the box 100 in a first direction. Exemplarily, the recess B can be integrally formed on the surface of the abutment 612 near the first end 110. There can be two recesses B, separated from each other in the rotation direction of the first rotating member 410. In the rotation direction of the first rotating member 410, one recess B is located upstream of the other recess B, and the first abutment protrusion 412 on the first rotating member 410 passes through the two recesses B successively. In this embodiment, the first driving surface I1 is inclined in the first direction and is disposed on the first abutment protrusion 412. In other embodiments, the first driving surface I1 can be disposed only on each recess B, or the first driving surface I1 can be disposed on both the first abutment protrusion 412 and each recess B.

[0472] In this embodiment, the first abutting protrusion 412 has a first edge and a second edge disposed opposite to each other, with the first edge located downstream of the second edge in the rotation direction of the first rotating member 410. In the first direction, the first edge is closer to the first end 110 of the housing 100 than the second edge. In the first direction, the recess B is located within the trajectory swept by the first driving surface I1 on the first abutting protrusion 412 during its movement. The depth of the downstream recess B along the first direction in the direction away from the first end 110 of the housing 100 is greater than the depth of the upstream recess B along the first direction in the direction away from the housing 100.

[0473] In this structure, when the first abutting protrusion 412 extends into the recess B, the detected component 500 is in a non-detection position. As the first rotating component 410 rotates, under the action of the first driving surface I1, the side wall of the recess B pushes against the first abutting protrusion 412 to push the first abutting protrusion 412 out of the recess B. At this time, the first rotating component 410 drives the detected component 500 to move from the non-detection position to the detection position. When the detected component 500 moves to the detection position, the detection circuit of the image forming apparatus generates an electrical signal, enabling the image forming apparatus to acquire information from the developing apparatus.

[0474] In one possible implementation, the developing assembly includes a stirring shaft 220, and the transmission assembly includes a stirring gear 310 rotatably mounted on a first end 110. The stirring gear 310 is fixedly connected to the stirring shaft 220, and a first rotating member 410 is disposed through the stirring shaft 220 and the stirring gear 310 respectively. The first rotating member 410 is configured to rotate together with the stirring shaft 220.

[0475] With the above configuration, when the power receiving device 320 drives the stirring gear 310 to rotate, the stirring gear 310 drives the stirring shaft 220 and the first rotating component 410 to rotate synchronously. The transmission component does not need to be set up separately to drive the first rotating component 410 to rotate, which helps to simplify the structure of the transmission component, reduce the space occupied by the first end 110 of the housing 100, and facilitates the miniaturization of the developing device.

[0476] Optionally, a flat key 41014 is provided on the first rotating member 410, and the flat key 41014 is slidably connected to the stirring shaft 220 and / or the stirring gear 310.

[0477] Schematic illustration: A flat key 41014 protrudes from the first rod portion 428 of the first rotating member 410. The flat key 41014 extends along a first direction, and the number of flat keys 41014 can be set according to actual needs, without being limited to a single specific number. A keyway is provided on the stirring shaft 220 and / or the stirring gear 310 to mate with the flat key 41014. The flat key 41014 extends into the keyway and is slidably connected to it; that is, the first rotating member 410 is keyed to the stirring shaft 220 and / or the stirring gear 310 through the engagement of the flat key 41014 with the keyway. In other embodiments, the flat key 41014 may be located on the first disc portion 411 of the first rotating member 410.

[0478] With the above settings, when the stirring gear 310 rotates, it can drive the first rotating component 410 to rotate synchronously, and the first rotating component 410 can move relative to the box 100 in the first direction.

[0479] When the developing device is in its initial state, the first abutment protrusion 412 is located in the upstream recess B, and the test piece 500 is in a non-test position.

[0480] When the stirring gear 310 receives power transmitted from the transmission assembly, it moves along... Figure 88 When the first disc 411 rotates counterclockwise (as indicated by the arrow), it causes the first disc 411 to rotate counterclockwise along with the stirring gear 310 and the stirring shaft 220. This causes the first driving surface I1 on the first abutting protrusion 412 to contact the side wall of the recess B. Since the first driving surface I1 is an inclined surface, the first abutting protrusion 412 is subjected to a reaction force along the first direction, causing the first abutting protrusion 412 to drive the first rotating member 410 to move to the left along the first direction. This causes the detected member 500 to move to the detection position, thereby actuating the detected member and causing the image forming apparatus to generate an electrical signal.

[0481] As the first disc 411 continues to rotate, the first abutting protrusion 412 rotates in the first direction to align with the downstream recess B. Under the action of the compression spring, the first disc 411 moves to the right along the first direction, thereby moving the tested item 500 to a non-testing position. Since the depth of the downstream recess B in the direction away from the first end 110 of the housing 100 along the first direction is greater than the depth of the upstream recess B in the direction away from the housing 100, when the first abutting protrusion 412 falls into the downstream recess B under the action of the elastic member, the flat key 41014 on the first rod 428 slides out from the keyway on the stirring shaft 220, thus failing to receive the torque transmitted from the stirring shaft 220 to the first rod 428, causing the first rod 428 to stop rotating, thereby ending the testing process of the developing device.

[0482] In this embodiment, only one electrical signal is generated. When the developing device is installed in the image forming apparatus, if it is a developed device that has been used, the first abutting protrusion 412 is already in the recess B located downstream, so no electrical signal can be generated. Thus, the newness or oldness of the developing device can be determined by whether an electrical signal is generated.

[0483] In other embodiments, the number of recesses 4111 on the abutment 612 may be increased, thereby increasing the number of electrical signals generated.

[0484] In this embodiment, compared to Embodiment 1, one transmission component (i.e., translational component) is removed from the first end 110 of the housing 100. This reduces the number of molds required during manufacturing, thereby saving mold opening costs, reducing production costs, simplifying the assembly process, and reducing the space occupied by the first end 110 of the housing 100, which is beneficial for the miniaturization of the developing apparatus.

[0485] Example 11

[0486] like Figures 90-102 As shown, this embodiment discloses a developing apparatus that can be detachably mounted on a drum assembly in an image forming apparatus.

[0487] The developing apparatus provided in this embodiment includes a transmission unit comprising a first rotating member 410 and a third rotating member 440. A first cover 610 is provided at the first end 110 of the housing 100. The developing apparatus includes an abutment 612 disposed on the first cover 610. A first protrusion 6123 is provided on the abutment 612. The third rotating member 440 is located outside the first rotating member 410 and is slidably connected to the first rotating member 410. The first protrusion 6123 is configured to abut against the first rotating member 410. The end of the first rotating member 410 away from the abutment 612 is drive-connected to the object being tested 500.

[0488] Schematic, the first rotating member 410 is movable along a first direction and supported by the outer surface of the fifth end 150 of the box body 100. A second sliding groove 158 is integrally formed on the outer surface of the fifth end 150 of the box body 100, and the second sliding groove 158 extends along the first direction. The first rotating member 410 is disposed in the second sliding groove 158 and is cylindrical. A first support hole is opened on the first end 110 of the box body 100. The first rotating member 410 passes through the first support hole and is movably supported by the first support hole. The first support hole is aligned with the second sliding groove 158 in the first direction.

[0489] The portion of the first rotating member 410 extending out of the second sliding groove 158 passes through the third rotating member 440. The third rotating member 440 is a hollow cylinder, and a gear portion 4104 is integrally formed on the circumferential surface of the third rotating member 440. In this embodiment, the gear portion 4104 is provided with multiple teeth (that is, in this embodiment, the third rotating member 440 may not be set as an incomplete gear), and the gear portion 4104 meshes with the stirring gear 310.

[0490] For example, the first abutting protrusion 412 is located on the circumferential surface of the portion of the first rotating member 410 extending out of the second slide groove 158. A sliding key 41421 is also protruding from the circumferential surface of the portion of the first rotating member 410 extending out of the second slide groove 158. The sliding key 41421 and the first abutting protrusion 412 can be integrally formed on the first rotating member 410. Two sliding grooves 4441 are integrally formed on the third rotating member 440. One sliding groove 4441 engages with the sliding key 41421, and the other sliding groove 4441 engages with the first abutting protrusion 412. The sliding key 41421 and the first abutting protrusion 412 can move relative to the corresponding sliding key 41421 in a first direction. In the first direction, the first abutting protrusion 412 is farther from the first end 110 of the box body 100 than the sliding key 41421. The first rotating member 410 is rotatably supported by the third rotating member 440. The first rotating member 410 can rotate together with the third rotating member 440.

[0491] The first cover 610 is detachably and fixedly installed to the first end 110 of the housing 100, covering the transmission assembly for protection. Optionally, the first cover 610 can be fixed to the housing 100 by means of snaps or fasteners. An abutment member 612 is integrally formed on the side of the first cover 610 facing the housing 100 in the first direction. The abutment member 612 includes an annular portion and a first protrusion 6123 integrally formed on the end face of the annular portion facing the housing 100 in the first direction. A first driving surface I1 is provided on the first protrusion 6123. The annular portion is aligned with the first abutment protrusion 412 on the first rotating member 410 in the first direction. The first driving surface I1 is further from the housing 100 in the upstream portion of the first abutment protrusion 412 in the rotation direction than in the downstream portion. The first driving surface I1 is used to interfere with the first abutment protrusion 412, thereby providing a force in the first direction to the first rotating member 410.

[0492] When the power receiving device 320 receives the power output from the image forming apparatus and drives the stirring gear 310 to rotate, the stirring gear 310 can drive the third rotating member 440 to rotate. The first rotating member 410 and the third rotating member 440 rotate synchronously. The interference between the abutting member 612 and the first rotating member 410 causes the first rotating member 410 to be displaced relative to the housing 100 in the first direction, thereby causing the detected item 500 to move relative to the housing 100, so that the image forming apparatus can acquire information from the developing apparatus.

[0493] In one possible implementation, the transmission unit further includes a translational member 420, with one end of the first rotating member 410 away from the abutting member 612 abutting against one end of the translational member 420, and the other end of the translational member 420 being connected to the detected member 500 in a transmission connection.

[0494] The translational member 420 is cylindrical and is housed in the second groove 158. In the first direction, the translational member 420 has a receiving end and a applying end. The receiving end of the translational member 420 is closer to the first end 110 of the housing 100 than the second end 120 of the housing 100, while the applying end of the translational member 420 extends beyond the second end 120 of the housing 100. The first rotating member 410 is aligned with the translational member 420 in the first direction, and the end of the first rotating member 410 away from the first cover 610 abuts against the receiving end of the translational member 420. With this structure, when the first rotating member 410 displaces relative to the housing 100 in the first direction, the first rotating member 410, through the translational member 420, drives the detected item 500 to move relative to the housing 100.

[0495] The working process of the developing apparatus in this embodiment is as follows: When the power receiving device 320 receives power and rotates, the power is transmitted to the developing roller 210 and the powder feeding roller 260 via the drive gear 322, causing the developing roller 210 and the powder feeding roller 260 to rotate. At the same time, the drive gear 322 transmits the power to the stirring gear 310 via the idler wheel 350. The stirring gear 310 drives the stirring frame 270 to rotate, and the stirring gear 310 drives the third rotating member 440 to rotate. The third rotating member 440 drives the first rotating member 410 to rotate through the cooperation of the sliding groove 4441 and the sliding key 41421. The rotation of the first rotating member 410 causes the first abutment protrusion to rotate. The first rotating member 412 rotates along with the first rotating member 410 in the rotation direction. The first abutting protrusion 412 moves along the side of the abutting member 612 facing the first end 110 and interferes with the first driving surface I1 of the first protrusion 6123. This causes the first abutting protrusion 412 to receive the force provided by the first driving surface I1, which drives the first rotating member 410 to move along the first direction from the first end 110 of the housing 100 to the second end 120 of the housing 100. The first rotating member 410 then pushes the translational member 420 to move along the first direction from the first end 110 of the housing 100 to the second end 120 of the housing 100. The first translational member 420 causes the detected item 500 to move relative to the housing 100, causing the image forming apparatus to generate an electrical signal, which allows the image forming apparatus to acquire information from the developing apparatus.

[0496] When a used developing device is reinstalled into an image forming apparatus, the translational member 420 has moved to its maximum value from the first end 110 of the housing 100 to the second end 120 of the housing 100. Therefore, the detected item 500 cannot move, and the image forming apparatus cannot generate an electrical signal. Thus, it can be determined that the developing device is an old developing device.

[0497] like Figures 90-93 , Figure 97 and Figure 98 As shown, the test piece 500 is slidably mounted on the second end 120. The second end 120 is provided with a driving member 121 and a second mating protrusion 122. A steering protrusion 1211 is disposed on the driving member 121. The driving member 121 can generate displacement relative to the housing 100 in a first direction. The second mating protrusion 122 is configured to push against the steering protrusion 1211 to drive the driving member 121 to generate displacement in a direction intersecting the first direction. The driving member 121 is configured to drive the test piece 500 to slide relative to the housing 100. At least one of the steering protrusion 1211 and the second mating protrusion 122 has a third transmission surface 1221 that is inclined relative to the first direction.

[0498] Schematic, the sliding direction of the detected element 500 forms an angle with the first direction, meaning that the detected element 500 can be displaced relative to the housing 100 in a direction intersecting the first direction. Exemplarily, the drive element 121 is slidably mounted on the detected element 500 along the first direction.

[0499] The second end 120 of the box body 100 is integrally formed with a guide portion 128. The guide portion 128 protrudes from the second end 120 of the box body 100 along a first direction and in a direction away from the box body 100. A second guide groove 1281 is formed on the guide portion 128. In this embodiment, the second guide groove 1281 is a dovetail groove. The extension direction of the second guide groove 1281 is a fourth direction. The fourth direction is not orthogonal to the second direction and the third direction, and the fourth direction is located in the plane formed by the second direction and the third direction. The fourth direction is orthogonal to the first direction. In this embodiment, the angle between the fourth direction and the second direction is 38°, and the angle between the fourth direction and the third direction is 51°. The test piece 500 is slidably mounted on the second guide groove 1281. Specifically, the test piece 500 has an integrally formed guide protrusion 5001 that cooperates with the second guide groove 1281. The cooperation between the guide protrusion 5001 and the second guide groove 1281 allows the test piece 500 to move along the fourth direction. An integrally formed detection protrusion 508 is provided on the test piece 500. The detection protrusion 508 protrudes from the test piece 500 along a first direction away from the housing 100. The detection protrusion 508 is used to contact and move the detection element inside the image forming apparatus, thereby generating an electrical signal in the image forming apparatus and detecting the developing apparatus. A first positioning post 127 extending along the first direction away from the housing 100 is also integrally formed on the second end 120 of the housing 100. A fourth elastic element 760 is fixedly connected to the first positioning post 127. In this embodiment, the fourth elastic element 760 is a tension spring. One end of the fourth elastic element 760 is fixedly connected to the first positioning post 127 and the other end is fixedly connected to the test piece 500.

[0500] The tested component 500 is integrally formed with a third slide groove 509 extending along a first direction, and the drive component 121 is slidably installed in the third slide groove 509. The drive component 121 includes a cylinder, a sliding part 1212 and two steering protrusions 1211. The sliding part 1212 and the two steering protrusions 1211 are all provided on the circumferential surface of the cylinder. The sliding part 1212 is slidably connected to the third slide groove 509. One of the steering protrusions 1211 is farther from the second end 120 of the housing 100 in the first direction than the other steering protrusion 1211.

[0501] The end of the translation member 420 away from the first end 110 is the force-applying end. The second end 120 of the box body 100 has a second support hole. The second support hole is aligned with the second slide groove 158 in the first direction. The force-applying end of the translation member 420 is movably supported by the second support hole and can extend out of the second slide groove 158 through the second support hole. In the first direction, the driving member 121 is aligned with the force-applying end of the translation member 420.

[0502] An interference portion 126 is integrally formed on the second end 120 of the housing 100. The interference portion 126 protrudes from the second end 120 of the housing 100 along a first direction and in a direction away from the housing 100. A second mating protrusion 122 can be integrally formed on the interference portion 126. There can be two second mating protrusions 122, which are located one-to-one on the movement trajectory of two steering protrusions 1211. For example, each steering protrusion 1211 and each second mating protrusion 122 are provided with a third transmission surface 1221. In other embodiments, the third transmission surface 1221 can be provided only on the steering protrusion 1211, or only on the second mating protrusion 122.

[0503] In this structure, when the translation member 420 moves relative to the box 100 in the first direction, the translation member 420 drives the driving member 121 to move relative to the box 100 in the first direction simultaneously. Through the cooperation between the steering protrusion 1211 and the second mating protrusion 122, the detected member 500 moves relative to the box 100 in a direction that intersects with the first direction.

[0504] As the translational member 420 moves along the first direction from the first end 110 to the second end 120, the driving member 121 moves together with the translational member 420. One of the steering protrusions 1211 first interferes with the corresponding second mating protrusion 122 on the interference part 126. Under the action of the third transmission surface 1221, it drives the detected member 500 to move along the fourth direction, that is, the detected member 500 moves from the non-detection position to the detection position. The detected protrusion 508 on the detected member 500 actuates the detection member in the image forming apparatus, causing the image forming apparatus to generate the first electrical signal. As the driving member 121 continues to move, the aforementioned second mating protrusion 122 and steering protrusion 1211 disengage from each other. Under the elastic force of the fourth elastic member 760, the detected member 500 resets along the fourth direction, that is, the detected member 500 moves from the detection position to the non-detection position, and the image forming apparatus stops generating electrical signals. As the drive member 121 continues to move, another steering protrusion 1211 interferes with another second mating protrusion 122. Under the action of the third transmission surface 1221, the detected object 500 is driven to move from the non-detection position to the detection position again, and a second electrical signal is generated in the image forming apparatus. As the drive member 121 continues to move, the other steering protrusion 1211 and the other second mating protrusion 122 disengage from each other. Under the elastic force of the fourth elastic member 760, the detected object 500 moves from the detection position to the non-detection position, and the image forming apparatus stops generating electrical signals, thus completing the detection process. At this time, the translation member 420 moves to its maximum value. The image forming apparatus determines the information of the developing apparatus (such as age, model, capacity, lifespan, etc.) based on the number of times, intervals, and duration of electrical signals generated. When the detected object 500 is in the non-detection position, the distance between the detected protrusion 508 and the developing roller 210 is less than the distance between the detected protrusion 508 and the developing roller 210 when the detected object 500 is in the detection position.

[0505] In other embodiments, more steering protrusions 1211 can be provided on the drive member 121 to set different numbers of electrical signal generation, the spacing between the steering protrusions 1211 can be adjusted to set the interval time between electrical signals, the moving speed of the translation member 420 or the length of the second mating protrusion 122 can be adjusted to adjust the duration of the electrical signal.

[0506] In one possible implementation, such as Figures 153-156 As shown, there is one steering protrusion 1211 and multiple second mating protrusions 122. The multiple second mating protrusions 122 are arranged at intervals along the first direction, and all of the multiple second mating protrusions 122 are located on the movement trajectory of the steering protrusion 1211.

[0507] For example, there may be two second mating protrusions 122, with one second mating protrusion 122 being closer to the housing 100 in the first direction than the other. The drive member 121 is also provided with a first force-receiving portion 1213 aligned with the translation member 420 in the first direction, and the second guide groove 1281 extends in a direction parallel to the second direction. The detected member 500 is slidably mounted on the second guide groove 1281 via the guide protrusion 5001 and can move along the second direction.

[0508] This structure simplifies the structure of the drive component 121, facilitates the production and manufacturing of the developing device, reduces the space occupied by the transmission structure at the second end 120 of the housing 100, and facilitates the miniaturization of the developing device.

[0509] Optionally, the developing apparatus also includes a power supply assembly, which includes a conductive protrusion 5002 disposed on the test piece 500. The conductive protrusion 5002 protrudes from the test piece 500 in a first direction away from the cartridge 100, and in a second direction the conductive protrusion 5002 is farther from the developing roller 210 than the test protrusion 508. The power supply assembly also includes a conductive element 910 disposed at the second end 120 of the housing 100. The conductive element 910 is electrically connected to the developing roller 210 and the powder feeding roller 260. The conductive element 910 is provided with a first electrical contact portion 911. In this embodiment, the conductive element 910 is a metal sheet, and the first electrical contact portion 911 is a contact formed by bending integrally formed with the conductive element 910. The first electrical contact portion 911 is elastic. The first electrical contact portion 911 abuts against the tested object 500 and generates elastic deformation to ensure that it remains in close contact during the movement of the tested object 500. In this embodiment, the tested object 500 is made of a conductive material, such as conductive resin.

[0510] When the translation member 420 moves from the first end 110 to the second end 120 along the first direction, the translation member 420 pushes the first force-receiving part 1213 on the drive member 121 to the left along the first direction, causing the drive member 121 to move to the left along the first direction. This causes the steering protrusion 1211 to pass through and interfere with the second mating protrusion 122, which is closer to the housing 100. This causes the drive member 121 to move the detected item 500 along the second guide groove 1281 from the non-detection position to the detection position in the second direction, thereby causing the image forming apparatus to generate an electrical signal. Then, as the drive member 121 continues to move, the steering protrusion 1211 and the second mating protrusion 122, which is closer to the housing 100, no longer interfere. At this time, under the elastic force of the fourth elastic member 760, the detected item 500 moves from the detection position to the non-detection position and resets. As the drive member 121 continues to move, the steering protrusion 1211 interferes with the second mating protrusion 122, which is farther from the housing 100. This causes the drive member 121 to move the detected item 500 from the non-detection position to the detection position for the second time, causing the image forming apparatus to generate an electrical signal for the second time. Then, as the drive member 121 continues to move, the steering protrusion 1211 and the second mating protrusion 122, which is farther from the housing 100, no longer interfere. At this point, under the elastic force of the fourth elastic member 760, the detected item 500 moves from the detection position back to the non-detection position to reset. This completes the detection of the developing apparatus by the image forming apparatus. At this point, the translation member 420 moves to its maximum value, and the drive member 121 loses power and can no longer move.

[0511] During the movement of the translational member 420 from the first end 110 to the second end 120 along the first direction, the conductive protrusion 5002 maintains contact with the power supply terminal in the image forming apparatus, and transmits the voltage through the detected member 500 to the conductive member 910 and then to the developing roller 210 and the powder feeding roller 260, so that the developing roller 210 and the powder feeding roller 260 are charged and can then adsorb the developer.

[0512] In addition, in this embodiment, a second cover 620 may be provided at the second end 120 of the housing 100. The second cover 620 covers at least part of the detected component 500, the driving component 121, the fourth elastic component 760, and the conductive component 910 to protect the above components. The second cover 620 is provided with an opening for the detected protrusion 508 and the conductive protrusion 5002 to extend out of the second cover 620.

[0513] Example 12

[0514] like Figures 103-111As shown, in one possible implementation, the transmission unit further includes a transmission component based on embodiment 10. The first rotating component 410 is rotatably disposed at the first end 110 of the box 100. The first rotating component 410 is connected to the transmission assembly and is used to drive the transmission component to move relative to the box 100.

[0515] like Figures 104 to 107 As shown schematically, the first rotating member 410 includes a gear portion 4104, which faces the first end 110 of the housing 100 in a first direction. The gear portion 4104 is a toothed gear (i.e., an incomplete gear) including a meshing section 4101 and a notched section 4102, which are disposed on the outer circumferential surface of the gear portion 4104. The meshing section 4101 of the gear portion 4104 can mesh with the stirring gear 310, and the notched section 4102 of the gear portion 4104 can disengage the meshing section 4101 from the stirring gear 310, so that the first rotating member 410 does not rotate with the stirring gear 310. The gear portion 4104 is provided with an abutment surface 4106, which is located on the side of the gear portion 4104 facing the first end 110.

[0516] In this design, the length (i.e., tooth width) of the teeth of the stirring gear 310 in the first direction is greater than the length (i.e., tooth width) of the teeth of the meshing section 4101 in the first direction. Therefore, the first rotating member 410 can both rotate with the stirring gear 310 due to meshing with it and move left and right along the teeth of the stirring gear 310 in the first direction without disengaging from the stirring gear 310. It is understood that the first abutting protrusion 412 can be set on the first rotating member 410 through a one-time molding process, or it can be set on the first rotating member 410 through bonding or fastening with fasteners.

[0517] like Figure 109 As shown, for example, the abutment 612 is formed into a cylindrical structure. Specifically, when viewed from right to left in the first direction, the abutment 612 is an annular ring. The first abutment protrusion 412 rotates synchronously with the first rotating member 410. When the abutment 612 pushes against the first abutment protrusion 412, it can drive the first rotating member 410 to move relative to the box 100 in the first direction.

[0518] In this structure, when the transmission assembly receives power from the image forming apparatus and moves, the transmission assembly can drive the first rotating member 410 to rotate. When the transmission assembly drives the first rotating member 410 to rotate relative to the housing 100, the first rotating member 410 is displaced relative to the housing 100 in a first direction through the cooperation between the first abutting protrusion 412 and the abutting member 612, and the transmission assembly moves relative to the housing 100. When the transmission assembly moves, it can drive the detected member 500 to move between the detection position and the non-detection position relative to the housing 100, thereby enabling the image forming apparatus to acquire information from the developing apparatus.

[0519] Schematic, the first driving surface I1 is disposed on the abutment member 612. When the first rotating member 410 rotates relative to the box 100, the first driving surface I1 on the abutment member 612 can apply a component force along the first direction to the first abutment protrusion 412 of the first rotating member 410, which causes the first rotating member 410 to displace relative to the box 100 in the first direction.

[0520] In this embodiment, the abutting member 612 is provided with a first protrusion 6123, which is configured to abut against the first abutting protrusion 412, and the first driving surface I1 is provided on the first protrusion 6123.

[0521] The first protrusion 6123 is located at the end of the abutment 612 facing the first end 110. A first tip T1 is formed on the first protrusion 6123. Those skilled in the art can set the height (i.e. the dimension in the first direction) of the first protrusion 6123 as needed, and no unique limitation is made here. Figure 109 As shown, the abutment 612 also has a recess and a first flat portion 6127 extending in the circumferential direction. The first flat portion 6127 has a first end H1 and a second end H2 in the circumferential direction. The first flat portion 6127 is formed in an arcuate structure and its end face is an arcuate plane. Specifically, each point on the end face of the first flat portion 6127 near the first end 110 in the first direction is at the same distance from the first end 110 in the first direction. In other embodiments, the distances of each point on the end face of the first flat portion 6127 near the first end 110 in the first direction to the first end 110 in the first direction may be different. The first flat portion 6127 is closer to the first end 110 in the first direction than the recess, and the first flat portion 6127 is farther from the first end 110 in the first direction than the first tip T1. In other embodiments, the distance between the first flat portion 6127 and the first end 110 in the first direction may be the same as the distance between the tip and the first end 110. In this embodiment, the number of the first protrusions 6123 is not limited, and those skilled in the art can set it according to actual needs.

[0522] In this embodiment, the first driving surface I1 is located on the first protrusion 6123, and the extension direction of the first driving surface I1 is a direction that intersects with the first direction and gradually approaches the first end 110 along the Z direction. Specifically, the upstream end of the first driving surface I1 in the Z direction is farther from the first end 110 than the downstream end in the first direction. The Z direction is the rotation direction of the first rotating member 410.

[0523] When the first rotating member 410 drives the first abutting protrusion 412 to rotate and pass the first protrusion 6123, under the action of the first driving surface I1, the first protrusion 6123 pushes against the first abutting protrusion 412, thereby driving the first rotating member 410 to generate displacement relative to the box 100 in the first direction, thereby causing the detected item 500 to move.

[0524] In one possible implementation, the abutment member 612 is further provided with a second driving surface I2 intersecting the first direction, and the first driving surface I1 and the second driving surface I2 are spaced apart in the rotation direction of the first rotating member 410.

[0525] In this embodiment, the abutting member 612 is further provided with a second protrusion 6124, which is configured to abut against the first abutting protrusion 412. The second driving surface I2 is disposed on the second protrusion 6124 and is inclined relative to the first direction.

[0526] The second protrusion 6124 is also located at the end of the abutment 612 facing the first end 110, and a second tip T2 is formed on the second protrusion 6124. In the rotation direction of the first rotating member 410, the second protrusion 6124 is located upstream of the first protrusion 6123, and a recess is provided between the first protrusion 6123 and the second protrusion 6124. The extension direction of the second driving surface I2 is defined in the same way as the extension direction of the first driving surface I1. It can be understood that the recess between the first protrusion 6123 and the second protrusion 6124 is equivalent to the recess B in Embodiment 3.

[0527] In this structure, when the first abutment protrusion 412 sequentially passes the second driving surface, the gap between the second driving surface and the first driving surface, and the first driving surface, the first rotating member 410 reciprocates relative to the housing in the first direction, thereby causing the detected member 500 to move multiple times between the detection position and the non-detection position. Thus, the image forming apparatus can generate multiple electrical signals, enabling it to acquire more information from the developing apparatus.

[0528] like Figure 109As shown, the abutment member 612 also includes a third protrusion 6125, which has a third tip T3 and a third driving surface I3. The extension direction of the third driving surface I3 is defined in the same way as the extension direction of the first driving surface I1. In the rotation direction of the first rotating member 410, the third protrusion 6125 is located upstream of the second protrusion 6124. A first recess B1 is provided between the third protrusion 6125 and the first flattening part 6127, a second recess B2 is provided between the second protrusion 6124 and the third protrusion 6125, and a first recess B1 is provided between the first protrusion 6123 and the second protrusion 6124. The first recess B1, the second recess B2, and the third recess B3 are all equidistant from the first end 110 in the first direction, and the third tip T3, the second tip T2, and the first tip T1 are all equidistant from the first end 110 in the first direction. The first recess B1, the second recess B2, and the third recess B3 are all equivalent to the recess B in Embodiment 3. In other embodiments, the distance between the first tip T1 and the first end 110 in the first direction may be different from the distance between the third tip T3 and the second tip T2 and the first end 110 in the first direction. The lengths of the recesses and protrusions around the abutment 612 in the circumferential direction may or may not be the same. This embodiment does not limit the recesses and protrusions, and the number, length, and shape of the recesses and protrusions on the abutment 612 can be set according to actual needs.

[0529] In addition, the abutment member 612 also has a fixing position H3, which is groove-shaped. In the first direction, the distance from the fixing position H3 to the first end 110 can be the same as or different from the distance from the first flat part 6127 to the first end 110, and those skilled in the art can set it as needed.

[0530] In one possible implementation, the angle between the first driving surface I1 and the first direction is different from the angle between the second driving surface I2 and the first direction.

[0531] For example, the angle between the first driving surface I1 and the first direction is smaller than the angle between the second driving surface I2 and the first direction, and the angle between the third driving surface I3 and the second driving surface I2 and the first direction is the same. Those skilled in the art can set the specific size of the angle between each driving surface and the first direction as needed, and no unique limitation is made here.

[0532] In this structure, when the first abutment protrusion 412 passes the first protrusion 6123 and the second protrusion 6124, the first rotating member 410 displaces at different speeds relative to the housing 100 in the first direction. Consequently, the detected member 500 moves at different speeds from the non-detection position to the detection position, resulting in different electrical signal generation speeds. The image forming apparatus can detect more information about the developing apparatus by generating electrical signals at different speeds.

[0533] In one possible implementation, the developing apparatus 1 further includes a first elastic member 710, one end of which abuts against the first rotating member 410. The first elastic member 710 is used to drive the first rotating member 410 to abut against the abutting member 612.

[0534] The first elastic element 710 can be a spring. The end of the first elastic element 710 away from the first end 110 abuts against the first rotating element 410. The elastic force of the first elastic element 710 drives the first abutting protrusion 412 to reliably abut against the abutting element 612.

[0535] This structure utilizes the elastic force of the first elastic element 710 to reliably abut against the first rotating element 410 and the abutting element 612. Specifically, the first elastic element 710 ensures that the first abutting protrusion 412 on the first rotating element 410 reliably abuts against the abutting element 612. When the transmission assembly drives the first rotating element 410 to rotate, the first rotating element 410 can reciprocate relative to the box 100 in a first direction under the action of the first elastic element 710 and the abutting element 612.

[0536] The developing apparatus also includes a first support column 720 disposed at the first end 110, and a first rotating member 410 rotatably mounted on the first support column 720. In this embodiment, the first support column 720 is formed by the first cover 610 extending from its inner wall in a first direction close to the first end 110. The first support column 720 can be inserted into the first mounting hole 4105 of the first rotating member 410, that is, the first support column 720 can be used to support the first rotating member 410. An abutment member 612 is disposed around the first support column 720. The first rotating member 410 is supported by the first support column 720, so that the first rotating member 410 can rotate relative to the housing 100.

[0537] Schematic, the first rotating member 410 includes a plurality of coaxially spaced cylinders. A first support column 720 passes through the innermost cylinder, and one end of the first elastic member 710 extends between two adjacent cylinders.

[0538] like Figure 106 As shown, there can be two cylinders, including a first cylinder 4131 located on the outer side and a second cylinder 4132 located on the inner side. In the first direction, the gear portion 4104 is closer to the first end 110 of the box 100 than the first cylinder 4131, and the radius of the addendum circle of the gear portion 4104 is larger than the radius of the outer circumference of the first cylinder 4131. The first cylinder 4131 and the gear portion 4104 can be integrally formed and their rotation axes coincide.

[0539] The second cylindrical body 4132 is coaxial with and integrally formed with the first cylindrical body 4131 along a first direction. The diameter of the second cylindrical body 4132 is smaller than that of the first cylindrical body 4131. The inner wall of the second cylindrical body 4132 defines a first mounting hole 4105, which is also surrounded by the first cylindrical body 4131. The outer circumferential surface of the second cylindrical body 4132 is radially separated from the inner circumferential surface of the first cylindrical body 4131, i.e., there is a radial gap between the second cylindrical body 4132 and the first cylindrical body 4131. One end of the gap away from the box body 100 in the first direction is closed by the wall connecting the second cylindrical body 4132 and the first cylindrical body 4131. A first abutting protrusion 412 protrudes from the outer circumferential surface of the first cylindrical body 4131 and extends in a direction away from the outer circumferential surface of the first cylindrical body 4131. In this embodiment, the first abutting protrusion 412 is a cylinder extending outward from the outer circumferential surface of the first cylindrical body 4131. The first abutting protrusion 412 is separated from the gear portion 4104 in the first direction. The first elastic member 710 is located in the gap between the first cylinder 4131 and the second cylinder 4132 and surrounds the surface of the second cylinder 4132. The first elastic member 710 can be compressed or stretched in the first direction. The first elastic member 710 has two ends in the first direction, wherein the end away from the first end 110 of the housing 100 abuts against the wall at the end of the closed gap.

[0540] For example, the first end 110 of the housing 100 is also provided with a first screw 113. The nut of the first screw 113 is larger than the first mounting hole 4105 of the second cylinder 4132. The end of the first elastic member 710 near the first end 110 of the housing 100 abuts against the nut of the first screw 113. Specifically, the first support column 720 has an internal threaded hole 721 along the first direction, and the first screw 113 is threadedly connected to the internal threaded hole 721. The first screw 113 can also be inserted into the first mounting hole 4105, that is, the first support column 720 and the first screw 113 can be combined in the first mounting hole 4105. Since the nut of the first screw 113 is larger than the first mounting hole 4105 of the second cylinder 4132, when the first rotating member 410 is supported by the first support column 720 and the first screw 113 is threadedly connected to the internal thread of the threaded hole, the first rotating member 410 cannot detach from the first support column 720 but can move relative to the first support column 720. When the first rotating member 410 is subjected to an external force from right to left in the first direction, the first rotating member 410 will move to the left relative to the first support column 720. However, since one end of the first elastic member 710 abuts against the nut of the first screw 113 and the other end is fixedly connected to the first rotating member 410, when the first rotating member 410 moves to the left under the action of the force, the first elastic member 710 is compressed and will also release a spring force from left to right according to its own elasticity. When the force on the first rotating member 410 disappears, the first rotating member 410 will move to the right relative to the first support column 720 according to the spring force released by the first elastic member 710. The force on the first rotating member 410 in the first direction can be a component force decomposed into the first direction or a force parallel to the first direction.

[0541] In this structure, after one end of the first elastic member 710 extends between two adjacent cylinders, the first rotating member 410 can limit the first elastic member 710, ensuring that the first abutting protrusion 412 can be reliably driven to abut against the abutting member 612.

[0542] When the abutment 612 is installed on the first cover 610, and the first rotating member 410 and the first screw 113 are installed on the first support post 720, the projection of the abutment 612 in the first direction at least partially coincides with the projection of the movement trajectory of the first abutment protrusion 412 in the first direction. The first elastic member 710 is always in a compressed state, that is, the first elastic member 710 will always release the elastic force that causes the first rotating member 410 to move to the right, so that the first abutment protrusion 412 on the first rotating member 410 always remains in abutting state with the abutment 612. In the first direction, the abutment 612 is located between the first cover 610 and the first rotating member 410. The abutment 612 can abut with the first abutment protrusion 412 on the first rotating member 410, and the abutment 612 applies an abutting force to the first rotating member 410 to restrict its rightward movement or even allow it to move to the left.

[0543] Since the first rotating member 410 can both mesh with and rotate with the stirring gear 310, and can also move left and right relative to the stirring gear 310 in the first direction, the first rotating member 410 can sequentially abut against the first flat portion 6127, the recess, and the protrusion on the abutting member 612. When the first abutting protrusion 412 abuts against the first flat portion 6127 of the abutting member 612, the first rotating member 410 and the stirring gear 310 have a first meshing position in the first direction; when the first abutting protrusion 412 abuts against each of the recesses of the abutting member 612, the first rotating member 410 and the stirring gear 310 have a second meshing position in the first direction; when the first abutting protrusion 412 abuts against each of the protrusions of the abutting member 612, the first rotating member 410 and the stirring gear 310 have a third meshing position in the first direction. It is known that when the first rotating member 410 is in the first engagement position in the first direction, it is closer to the first end 110 of the box 100 than when it is in the second engagement position, and when it is in the third engagement position, it is closer to the first end 110 of the box 100 than when it is in the first engagement position.

[0544] As the first rotating member 410 rotates, the first abutting protrusion 412 rotates from abutting the first flat part 6127 to abutting the recess. Under the influence of the elastic force of the first elastic member 710, the first rotating member 410 moves from the first engagement position to the right on the stirring gear 310 along the first direction to the second engagement position. When the first abutting protrusion 412 rotates from the abutting recess to abutting the protrusion, the first rotating member 410 moves from the second engagement position to the left on the stirring gear 310 along the first direction to the third engagement position under the influence of the abutting force. When the first abutting protrusion 412 rotates from the abutting protrusion to abutting the recess, the first rotating member 410 moves from the third engagement position to the right on the stirring gear 310 along the first direction to the second engagement position under the influence of the elastic force of the first elastic member 710. Due to the contact between the first abutting protrusion 412 and the abutting member 612, the abutting member 612 can also limit the first rotating member 410 in the first direction, preventing the first rotating member 410 from disengaging from the stirring gear 310 under the action of the elastic force of the first elastic member 710 when the stirring gear 310 is engaged.

[0545] like Figure 107 and Figure 108 As shown, in one possible implementation, the first rotating member 410 is provided with an marking portion 416, and the first cover 610 is provided with a hole 613 exposing the marking portion 416.

[0546] The marking portion 416 is located on the end face of the first rotating member 410 away from the first end 110 in a first direction. The marking portion 416 can be a groove or pattern on the first rotating member 410, etc., and is not limited to a single feature. For example, the hole 613 can be formed on the first cover 610 by an integral molding process. In this embodiment, the specific position, shape and size of the hole 613 are not limited, and those skilled in the art can set it according to actual needs.

[0547] With this structure, when the marking part 416 is observed through the hole 613, it can be determined whether the first rotating member 410 has rotated, and thus whether the developing device is operating normally.

[0548] like Figure 105 and Figure 108 As shown, the first cover 610 is also provided with a second opening 614, which is used to expose the power receiving part 321 of the power receiving device 320, so that the power receiving part 321 can receive the power transmitted from the image forming device.

[0549] like Figure 103 , Figure 110 and Figure 111 As shown, the transmission component includes a translational member 420 extending along a first direction, one end of which abuts against the first rotating member 410.

[0550] The translational member 420 is formed as a rod-shaped member extending along the first direction. The axial direction of the rod-shaped member is parallel to the first direction and extends from the first end 110 of the box 100 to the second end 120. When the first rotating member 410 moves relative to the box 100 in the first direction, it can drive the translational member 420 to move synchronously relative to the box 100.

[0551] In this structure, when the first rotating member 410 is displaced relative to the housing 100 in the first direction, it drives the detected member 500 to move between the detection position and the non-detection position through the translation member 420, so that the image forming apparatus can acquire information from the developing apparatus.

[0552] In one possible implementation, a limiting structure is provided on the box 100, and the transmission component is limited to the limiting structure.

[0553] The cartridge body 100 includes a top cover 170, with a fifth end 150 formed on the top cover 170. The top cover 170 prevents developer leakage from the cartridge body 100. The limiting structure includes a first groove 172, a first limiting portion 173, and a movable groove 174 disposed on the top cover 170. The first groove 172 extends along a first direction, and in a second direction, the first groove 172 is closer to the fourth end 140 relative to the third end 130. In this embodiment, there are two first limiting portions 173, located at opposite ends of the first groove 172 in the first direction. Each first limiting portion 173 has a limiting through hole (not shown in the figure) extending through the first direction. In this embodiment, there are two movable slots 174. The two movable slots 174 are located at both ends of the first slide groove 172 in the first direction. In the first direction, the movable slots 174 are closer to the third end 130 or the fourth end 140 of the box body 100 relative to the first limiting part 173. That is, the first limiting part 173 is located between the first slide groove 172 and the movable slots 174 in the first direction. This embodiment does not limit the number and shape of the first limiting part 173 and the movable slots 174, and they can be changed according to actual needs.

[0554] like Figure 103 and Figure 111 As shown, the translational member 420 is a rod-shaped structure. It is located at the fifth end 150 of the housing 100 and detachably mounted on the upper cover 170. The translational member 420 can move left and right in a first direction. The translational member 420 includes an integrally formed first rod portion 428 and a first driven portion 421. The first rod portion 428 is partially mounted on the first slide groove 172. While the translational member 420 is limited by the first limiting portion 173 to prevent it from falling out of the first slide groove 172, the first rod portion 428 can move left and right in the first direction through the limiting through hole on the first limiting portion 173. That is, the first rod portion 428 is partially located in the first slide groove 172 and partially located in the movable grooves 174 at both ends through the limiting through hole. In this embodiment, the first driven part 421 is a block-shaped object. The first driven part 421 is located at the first end 110 of the box body 100 and is connected to the end of the first rod part 428 near the first end 110. The first driven part 421 can move in the movable groove 174 located at the right end of the first slide groove 172. The first driven part 421 has an end that abuts against the contact surface 4106 of the first rotating member 410. This end is always located outside the movable groove 174.

[0555] This structure limits the transmission components through a limiting structure, thereby improving the stability of the transmission and ensuring that when the first rotating component 410 is displaced relative to the box 100 in the first direction, it can reliably drive the detected component 500 to move between the detection position and the non-detection position through the transmission components.

[0556] A third elastic element 750 is fitted onto the translational member 420, and the third elastic element 750 is located in the right movable groove 174 near the first end 110. One end of the third elastic element 750 abuts against the wall formed by the first limiting part 173 and the movable groove 174, and the other end abuts against the first driven part 421, that is, the third elastic element 750 is located between the first limiting part 173 and the first driven part 421. When the first driven part 421 is subjected to the abutting force of the first rotating member 410 in the first direction, the translational member 420 moves to the left, and the third elastic element 750 is compressed. When the abutting force from the first rotating member 410 in the first direction weakens or disappears, the translational member 420 moves to the right according to the elastic force of the third elastic element 750 itself.

[0557] The following is the working process of the developing apparatus disclosed in this embodiment. The first rotating member 410 abuts against the translational member 420, causing the translational member 420 to move to the left in the first direction. The third elastic member 750 releases the elastic force, causing the translational member 420 to move to the right in the first direction. While the translational member 420 moves, it drives the detected item 500 to move between the detection position and the non-detection position.

[0558] When the developing device is installed into the image forming apparatus, and the developing device is not in operation (i.e., the power receiving part 321 of the power receiving device 320 does not receive the power output from the image forming apparatus), the first rotating member 410 is in the initial position and the meshing section 4101 is engaged with the stirring gear 310. The first rotating member 410, the abutting member 612, and the first driven part 421 of the translational member 420 are all in abutting state. The first abutting protrusion 412 is abutted at the first end H1 of the first flat part 6127. The first rotating member 410 is in the first meshing position, the first elastic member 710 and the third elastic member 750 are in a compressed state, and the detected member 500 is in the detection position.

[0559] When the power receiving unit 321 receives the power output from the image forming apparatus and begins to rotate, it drives the entire transmission assembly to rotate. The first rotating member 410 follows the stirring gear 310 and begins to rotate. During the process of the first abutting protrusion 412 being abutted at the first end H1 and rotating to being abutted at the second end H2, that is, when the first abutting protrusion 412 is abutted by the first flattening part 6127, the first rotating member 410 is always in the first engagement position in the first direction, the translational member 420 does not move, and the detected member 500 is in the detection position. During the process of the first abutting protrusion 412 rotating from the second end H2 to the first recess B1, the first abutting protrusion 412 loses its abutting force. The first rotating member 410 is affected by the elastic force of the first elastic member 710 and moves to the right along the first direction on the stirring gear 310 from the first engagement position. The translational member 420 is affected by the third elastic member 750 and moves to the right in the first direction. The translational member 420 causes the detected member 500 to move to the non-detection position. The first abutting protrusion 412 is located in the first recess B1 and stops moving to the right when it is abutted again. The first rotating member 410 is in the second engagement position. When the first abutting protrusion 412 rotates in the first recess B1, the first rotating member 410 and the translational member 420 do not move in the first direction, and the detected member 500 remains in the non-detection position.

[0560] As the first abutting protrusion 412 rotates from the first recess B1 toward the third tip T3 of the third protrusion 6125, the first abutting protrusion 412 is abutted by the third driving surface I3, and the first abutting protrusion 412 approaches the third protrusion 6125 along the third driving surface I3. Simultaneously, the first rotating member 410 moves to the left along the first direction on the stirring gear 310 from the second engagement position, driving the translating member 420 to move to the left. The translating member 420 causes the detected member 500 to move from the non-detection position to the detection position. When the first abutting protrusion 412 is located at the third tip T3, the first rotating member 410 and the translating member 420 stop moving to the left, and the first rotating member 410 is located in the third engagement position in the first direction, and the detected member 500 moves back to the detection position. It can be understood that the detected member 500 can also move back to the detection position during the rotation of the first abutting protrusion 412 from the first recess B1 toward the third protrusion 6125.

[0561] The process of the first abutting protrusion 412 rotating from the third protrusion 6125 to the second recess B2, the process of the first abutting protrusion 412 rotating from the second tip T2 of the second protrusion 6124 to the third recess B3, and the process of the first abutting protrusion 412 rotating from the second end H2 to the first recess B1 are the same, so that the first rotating member 410 moves to the right in the first direction and is located in the second engagement position, so that the detected member 500 moves to the non-detection position.

[0562] The process of the first abutting protrusion 412 rotating from the second recess B2 to the second tip T2, the process of the first abutting protrusion 412 rotating from the third recess B3 to the first tip T1 of the first protrusion 6123, and the process of the first abutting protrusion 412 rotating from the first recess B1 to the third tip T3 are the same, so that the first rotating member 410 moves to the left in the first direction and is located in the third engagement position, so that the detected member 500 moves to the detection position. The first abutting protrusion 412 rotating from the second recess B2 to the second tip T2 is the third contact, and the first abutting protrusion 412 rotating from the third recess B3 to the first tip T1 is the fourth contact. The difference is that, since the angle between the first driving surface I1 and the first direction is smaller than the angle between the third driving surface I3 and the second driving surface I2 and the first direction, the first abutting protrusion 412 is abutted by the first driving surface I1 for a shorter time, which makes the first abutting protrusion 412 reach the first tip T1 more quickly and makes the first rotating member 410 move from the second engagement position to the third engagement position more quickly, thereby making the detected member 500 move to the detection position more quickly.

[0563] In this embodiment, when the first abutting protrusion 412 moves to abut against the first tip T1, the second tip T2, and the third tip T3, the detected component 500 is located in the detection position. In other embodiments, it can also be configured that when the first abutting protrusion 412 moves to any point on the third driving surface I3, the second driving surface I2, and the first driving surface I1, the detected component 500 is located in the detection position.

[0564] When the first abutment protrusion 412 rotates to the fixed position H3, the notch section 4102 of the first rotating member 410 disengages from the stirring gear 310, meaning the first rotating member 410 stops rotating, and the object under test 500 remains in the test position, thus completing the test and allowing the developing apparatus to operate normally. The fixed position H3 restricts the position of the first abutment protrusion 412 to prevent the rotation of the first rotating member 410 from causing movement of the object under test 500. To meet the testing requirements of the image forming apparatus, the length, number and shape of the recesses and tips of the first flat portion 6127 on the abutment member 612 can be set according to the specific requirements of the image forming apparatus.

[0565] When the developing device is removed from the image forming apparatus, it can be indicated that the developing device is in a completed detection state by exposing the marking portion 416 on the first rotating member 410 through the hole 613 on the first cover 610. The detected member 500 can be moved to the left along the R direction to cause the translation member 420 to move to the left, causing the first rotating member 410 to lose its elasticity in the first direction. Then, the first rotating member 410 can be rotated to reset it, so that the developing device is in an undetected state.

[0566] Through the above process, the image forming apparatus can detect information about the developing apparatus (such as different models, different capacities, and newness or oldness) by detecting changes in the movement speed, number of touches, and length of intervals of the tested object 500, and facilitates the reset of the tested object 500.

[0567] Example 13

[0568] The main difference between this embodiment and embodiment 12 is that the first support column 720 and the upper cover 170 are integrated, and the structure of the first rotating member 410 has been changed.

[0569] like Figure 112 As shown, a first support post 720 is disposed on the side wall of the upper cover 170 located at the first end 110 of the box body 100, and is closer to the fourth end 140 in a second direction relative to the third end 130. The first support post 720 extends to the right from the side wall of the upper cover 170 in a first direction. A radially integrally formed reinforcing rib is provided on the circumferential surface of the first support post 720, and the reinforcing rib is integrally connected to the first end 110 of the box body 100. A first elastic member 710 surrounds the first support post 720, and one end of the first elastic member 710 abuts against the reinforcing rib.

[0570] like Figure 113 and Figure 114As shown, in this embodiment, the first rotating member 410 has a gear portion 4104, a first abutting protrusion 412, and a marking portion 416. The gear portion 4104 has a meshing section 4101 and a notch section 4102, and the meshing section 4101 and the notch section 4102 are arranged together around the circumference of the gear portion 4104, that is, the gear portion 4104 is an incomplete gear. The meshing section 4101 has teeth arranged around the tip circle portion of the teeth. The meshing section 4101 can mesh with the stirring gear 310 and be driven by the stirring gear 310 to rotate the first rotating member 410. When the notch section 4102 is opposite to the stirring gear 310, the first rotating member 410 disengages from the stirring gear 310 and no longer rotates. The gear portion 4104 is provided with a first mounting hole 4105, and the first mounting hole 4105 is fitted onto the first support column 720 so that the first rotating member 410 is supported by the upper cover 170. The first rotating member 410 can move left and right along the first support column 720 in a first direction. A first abutting protrusion 412 and a marking portion 416 are provided on the first surface 4107 of the gear portion 4104. The first abutting protrusion 412 is a protrusion that extends from the first surface 4107 away from the side wall in the first direction. The first abutting protrusion 412 is used to abut against the abutting member 612. The first rotating member 410 also has a second surface (not shown in the figure). The second surface is the other surface of the first rotating member 410 opposite to the first surface 4107 in the first direction. In the first direction, the second surface is closer to the first end 110 of the box 100 than the first surface 4107. In the first direction, the first elastic member 710 is located between the side wall of the upper cover 170 at the first end 110 and the first rotating member 410, and the other end of the first elastic member 710 abuts against the second surface of the first rotating member 410. That is, when the first rotating member 410 moves to the right on the first support column 720, the first elastic member 710 will be compressed, and at the same time, the first elastic member 710 will also have a spring force acting on the first rotating member 410 from left to right.

[0571] The above structure can also accomplish the detection function in Embodiment 12, ensuring that the developing device is successfully detected and works normally by the image forming device.

[0572] Example 14

[0573] The main difference between this embodiment and embodiment 12 is that the structures of the translational member 420 and the first rotating member 410 are optimized.

[0574] like Figures 115-117As shown, the structure of the first abutting protrusion 412 on the first rotating member 410 in this embodiment differs from that in Embodiment 12. However, the function of the first abutting protrusion 412 in this embodiment is the same as that in Embodiment 12. Except for the first abutting protrusion 412, the rest of the structure is the same. The first abutting protrusion 412 is located on the outer circumferential surface of the first cylinder 4131 and extends radially along the first cylinder 4131. The first abutting protrusion 412 includes a first abutting arc surface 4122 (i.e., the first driving surface) and a first abutting end 4121. The first abutting arc surface 4122 is an arc surface in a first direction from one end near the gear portion 4104 to one end away from the gear portion 4104. The first abutting end 4121 is the end of the first abutting protrusion 412 that is away from the gear portion 4104. In the first direction, the first abutting end 4121 is further away from the first end 110 of the housing 100 than the first cylindrical body 4131. The first abutting protrusion 412 can move with the rotation of the first rotating member 410. In other embodiments, the first abutting protrusion 412 can also extend directly from the end face of the gear portion 4104 along the first direction; the first abutting protrusion 412 can also be integrally formed with the outer circumferential surface of both the gear portion 4104 and the first cylindrical body 4131.

[0575] When the first rotating member 410 rotates with the stirring gear 310, the first abutting end 4121 is used to abut against the first flat part 6127, the recess and the protrusion on the abutting member 612 in sequence. When the first abutting end 4121 switches to abutting against the abutting part on the abutting member 612 (e.g., the first abutting end 4121 changes from abutting against the first recess B1 on the abutting member 612 to abutting against the third tip T3), the first abutting arc surface 4122 is used to make contact with the inclined surface between the abutting parts on the abutting member 612. Since the shape of the first abutting arc surface 4122 matches the inclined surface on the abutting member 612, the contact and switching can be smoother, preventing the first abutting protrusion 412 from being affected by the excessive resistance of the abutting member 612 during the rotation of the first rotating member 410, thus affecting the detection.

[0576] In one possible implementation, one end of the translational member 420 is provided with a spherical protrusion 424, which abuts against the first rotating member 410.

[0577] like Figure 117As shown, the translational member 420 in this embodiment has the same function as that in Embodiment 4. In this embodiment, the translational member 420 includes an integrally formed first rod portion 428 and a first driven portion 421. The first rod portion 428 is partially mounted on the first slide groove 172. The translational member 420 is limited by the first limiting portion 173 to prevent it from falling out of the first slide groove 172. At the same time, the first rod portion 428 can move left and right in the first direction through the limiting through hole on the first limiting portion 173. That is, the first rod portion 428 is partially located in the first slide groove 172 and partially located in the movable grooves 174 at...

Claims

1. A developing device characterized by comprising: include: The box body has a first end and a second end that are arranged opposite to each other in a first direction, a third end and a fourth end that are arranged opposite to each other in a second direction, and a fifth end and a sixth end that are arranged opposite to each other in a third direction. The first direction, the second direction and the third direction are arranged to intersect each other. A developing assembly includes a developing roller rotatably disposed within a cartridge body, the developing roller being located at a third end of the cartridge body, the developing roller extending axially along a first direction, and the developing roller being located at the third end of the cartridge body in a second direction; A transmission component is disposed at the first end, and the transmission component is configured to drive the developing component to move after receiving power output from the image forming apparatus; The transmission unit includes a first rotating component and a transmission component. The first rotating component is rotatably disposed at the first end of the housing. The first rotating component is connected to the transmission assembly and the transmission component respectively. The detected component is connected to the transmission component. The tested component is at least partially located at the second end, and the tested component is connected to the transmission assembly via the transmission assembly. The tested component is capable of moving between a detection position and a non-detection position. The transmission component includes a translational component, which is connected to the first rotating component and can be displaced relative to the housing in a first direction. One end of the translational component is provided with a first driven part for receiving the power transmitted by the first rotating component. The translational member abuts against the tested component to drive the tested component to slide; when the translational member moves from the first end to the second end along the first direction, the pushing surface on the translational member pushes the tested component, and under the action of the pushing surface, the tested component slides relative to the box body and generates displacement relative to the box body in the second direction, so that the tested component slides from the non-detection position to the detection position. A first transmission protrusion is provided on the side of the first rotating component facing the first end. A first transmission surface is provided on the transmission protrusion. There are three first transmission surfaces, namely a first inclined surface, a second inclined surface, and a third inclined surface. The angle between the third inclined surface and the first direction is smaller than the angle between the first inclined surface and the first direction.

2. The developing device according to claim 1, wherein At least one of the first driven part and the first rotating member is provided with a first transmission surface that is inclined relative to the first direction.

3. The developing device according to claim 2, wherein The first driven part is provided with a spherical protrusion, which abuts against the first rotating member.

4. The developing device according to claim 1, wherein The first end is provided with a positioning and fitting part, and one end of the translation member is provided with a first positioning part, which extends into the positioning and fitting part to restrict the rotation of the translation member.

5. The developing device according to claim 4, wherein The first end of the box is provided with a first protective cover, and the positioning and fitting part is provided on the first protective cover.

6. The developing device according to claim 1, wherein The first rotating member has a tapered portion at the end that contacts the first driven part, and the tapered portion abuts against the translational member.

7. The developing device according to claim 1, wherein In the first direction, the position where the first rotating member abuts against the translational member is located at the middle of the box body.

8. The developing device as claimed in claim 1, wherein A third elastic element is connected to the transmission component, and the third elastic element is configured to keep the transmission component in contact with the first rotating component.

9. The developing device as claimed in claim 1, wherein The box is provided with a limiting structure, and the transmission member is limited in the limiting structure.

10. The developing apparatus according to claim 1, characterized in that, The developing device further comprises a fourth elastic member connected with the detected member, and the fourth elastic member is configured to drive the detected member to move to the non-detection position.

Images