Developing cartridge

Abstract

A developing cartridge (1), comprising: a cartridge body (10) having a first end (11) and a second end (12) oppositely disposed in a first direction, and a third end (13) and a fourth end (14) oppositely disposed in a second direction, the first direction and the second direction intersecting each other; a developing roller (131) rotating around a first axis extending in the first direction and located at the third end (13); a driving part (40) receiving external power to rotate and located at the first end (11); a light-emitting element (55) closer to the fourth end than the developing roller (131) in the second direction and capable of emitting light; and an abutting member (1211) located at the second end (12).

Description

A developing cartridge

[0001] Related applications

[0002] This application claims the following patent applications filed on April 25, 2024, with application number 202420888093.5 and entitled "A Developer Box"; filed on April 30, 2024, with application number 202420942586.2 and entitled "A Developer Apparatus"; filed on May 11, 2024, with application number 202421023690.8 and entitled "A Developer Apparatus"; filed on May 29, 2024, with application number 202421211473.1 and entitled "A Developer Apparatus"; filed on June 25, 2024, with application number 202421476703.7 and entitled "A Developer Box"; and filed on July 2, 2024, with application number 202421552481. 2. Priority is given to the following Chinese patent applications, which are entitled "A developing apparatus" (application number 202421700055.9), "A developing box" (application number 202421897209.8), "A developing apparatus" (application number 202422004697.1), "A developing box" (application number 202411381904.3), "A developing box" (application number 202411479765.8), and "A developing box" (application number 202411479765.8), filed on July 17, 2024, and filed on September 29, 2024, respectively, and filed on October 22, 2024, respectively. The entire contents of these patent applications are incorporated herein by reference. Technical Field

[0003] This application relates to the field of electronic imaging technology, specifically to a developing cartridge. Background Technology

[0004] A developer cartridge is a detachable component widely used in image forming apparatuses. The image forming apparatus is equipped with a detection device to check if the installed developer cartridge is compatible. Generally, detection devices are divided into optical signal detection devices and electrical signal detection devices. After the developer cartridge is installed in the image forming apparatus, it triggers the detection device, causing a change in optical or electrical signal in the image forming apparatus. In existing technology, the component that causes the change in optical or electrical signal is usually located on the image forming apparatus. The detection end of the developer cartridge has a movable part to trigger this part, and the drive end transmits power to the detection end through a transmission mechanism. After prolonged use of the image forming apparatus, this component wears down, making it impossible to accurately detect changes in optical or electrical signals, thus preventing the image forming apparatus from accurately identifying the developer cartridge. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a developing cartridge with a simpler structure and more stable detection.

[0006] To achieve the above and other objectives, the present invention provides a developing cartridge, comprising: a cartridge body having a first end and a second end disposed opposite to each other in a first direction; a developing roller that rotates about an axis extending in the first direction; a driving unit that receives external power and rotates, located at the first end; and a detection element that receives power transmitted by the driving unit and moves, the detection element causing a change in an electrical signal or an optical signal within an image forming apparatus.

[0007] The specific details of this application are described in the embodiments. Attached Figure Description

[0008] Figure 1 is a schematic diagram of the structure in Embodiment 1 where the developing cartridge is installed to the main housing of the image forming apparatus;

[0009] Figure 2 is a schematic diagram of the developing cartridge in Example 1;

[0010] Figure 3 is a structural schematic diagram of the developing cartridge from another perspective in Embodiment 1;

[0011] Figure 4 is a schematic diagram of the rotating component in Embodiment 1;

[0012] Figure 5 is a cross-sectional view of the rotating component and the conductive component in Embodiment 1;

[0013] Figure 6 is a schematic diagram of the structure of the second end in Embodiment 1;

[0014] Figure 7 is a schematic diagram of the circuit in the closed circuit configuration in Embodiment 1;

[0015] Figure 8 is a structural schematic diagram of the abutting member and the blocking member in Embodiment 1;

[0016] Figure 9 is a schematic diagram of the signal generated by the image forming apparatus in Embodiment 1;

[0017] Figure 10 is a schematic diagram of the developing box in Example 2;

[0018] Figure 11 is a partial exploded view of the first end in Embodiment 2;

[0019] Figure 12 is a cross-sectional view of the contact between the switching component and the rotating component in Embodiment 2;

[0020] Figure 13 is a schematic diagram of the developing cartridge in Example 3;

[0021] Figure 14 is a partial exploded view of the second end in Embodiment 3;

[0022] Figure 15 is a side view of the second end in Embodiment 3;

[0023] Figure 16 is a schematic diagram of another developing cartridge in Example 3;

[0024] Figure 17 is a schematic diagram of the structure of the second end in Embodiment 4;

[0025] Figure 18 is a schematic diagram of the light source emission path in Embodiment 4;

[0026] Figure 19 is an exploded view of the second end in Example 5;

[0027] Figure 20 is a schematic diagram of the structure in Embodiment 5 where the second end of the second cover is hidden.

[0028] Figure 21 is a circuit diagram of Embodiment 5;

[0029] Figure 22 is a schematic diagram of the developing cartridge in Example 6;

[0030] Figure 23 is a schematic diagram of the connection between the tested component and the storage medium in Embodiment 6;

[0031] Figure 24 is a schematic diagram of the developing cartridge in Example 7;

[0032] Figure 25 is an exploded view of the switching component and the rotating component in Embodiment 7;

[0033] Figure 26 is a schematic diagram of the structure in which the trigger part contacts the abutment protrusion in Embodiment 7;

[0034] Figure 27 is a schematic diagram of the contact structure of the intermediate component, the abutment protrusion and the trigger part in Embodiment 7;

[0035] Figure 28 is a schematic diagram of the developing box in Example 8;

[0036] Figure 29 is an exploded view of the second end in Example 8;

[0037] Figure 30 is an exploded view of the control unit and power supply unit in Embodiment 8;

[0038] Figure 31 is a schematic diagram of the structure of the component being tested in Example 8;

[0039] Figure 32 is a schematic diagram of the developing box with a cover plate installed in Example 8;

[0040] Figure 33 is a schematic diagram of the developing cassette with a protective cover installed in Example 8;

[0041] Figure 34 is a side view of the second end in Embodiment 8;

[0042] Figure 35 is a cross-sectional view of the developing cartridge in Example 8;

[0043] Figure 36 is a partial exploded view of the developing chamber in Example 9;

[0044] Figure 37 is a schematic diagram of the connection between the storage medium and the control unit in Embodiment 9;

[0045] Figure 38 is a schematic diagram of the structure in Embodiment 10 where the second end of the second cover is hidden.

[0046] Figure 39 is a schematic diagram of the structure in Embodiment 10 where the door cover is not closed and the switch is not closed;

[0047] Figure 40 is a schematic diagram of the developing cartridge in Example 11;

[0048] Figure 41 is a schematic diagram of the structure of the insulating component that isolates the power supply component and the control unit in Embodiment 11;

[0049] Figure 42 is a schematic diagram of the developing chamber in Example 12;

[0050] Figure 43 is a partial exploded view of the first end in Example Twelve;

[0051] Figure 44 is a partial exploded view of the developing chamber in Example 12;

[0052] Figure 45 is a cross-sectional view of the developing chamber in Example 12;

[0053] Figure 46 is a schematic diagram of the developing cartridge in Example 13;

[0054] Figure 47 is a schematic diagram of the structure of the first end of the first cover after it is separated from the box body in Embodiment 13;

[0055] Figure 48 is a schematic diagram of the structure of the second end in Embodiment Thirteen;

[0056] Figure 49 is a schematic diagram of the structure of the developing roller, conductive component and first rotating component when viewed from left to right in Embodiment Thirteen.

[0057] Figure 50 is a schematic diagram of the structure of the developing roller, conductive component and first rotating component when viewed from top to bottom in Embodiment 13.

[0058] Figure 51 is a partial structural diagram of the first end when the movable part is in the separated position in Embodiment 13;

[0059] Figure 52 is a partial structural diagram of the first end when the movable part is in the contact position in Embodiment Thirteen;

[0060] Figure 53 is a schematic diagram of the structure of the first end after the first rotating component and the first protective cover are hidden in Embodiment Fourteen;

[0061] Figure 54 is a structural schematic diagram of the first rotating component, the intermediate conductive component, the grounding conductive component, and the swinging component in Embodiment 15.

[0062] Figure 55 is a schematic diagram of the structure of the first end after the first protective cover is hidden in Embodiment Sixteen;

[0063] Figure 56 is a schematic diagram of the structure after the transmission gear is hidden when viewed from right to left in Embodiment Sixteen;

[0064] Figure 57 is a schematic diagram of the structure of the second conductive element, intermediate conductive element, grounding conductive element, transmission gear, and translational element in Embodiment Sixteen.

[0065] Figure 58 is a structural schematic diagram of the first support, intermediate conductive component, grounding conductive component and translational component in the modified example of Embodiment Sixteen;

[0066] Figure 59 is a schematic diagram of the structure of the first end after the first cover is separated from the box body in Embodiment 17;

[0067] Figure 60 is a schematic diagram of the structure of the first end after the first cover and the drive unit are separated from the box body in Embodiment 17;

[0068] Figure 61 is a structural schematic diagram of the first end after the first protective cover is hidden in Embodiment 18;

[0069] Figure 62 is a schematic diagram of the exploded structure of the first end in Embodiment Nineteen;

[0070] Figure 63 is a schematic diagram of the exploded structure of the first end in Example 20;

[0071] Figure 64 is a schematic diagram of the structure of the first end in Embodiment 21;

[0072] Figure 65 is a structural schematic diagram of the first end of the hidden cover in Embodiment 21;

[0073] Figure 66 is an exploded view of the developing cartridge in Example 22;

[0074] Figure 67 is a schematic diagram of the structure of the first end in Embodiment 22;

[0075] Figure 68 is a schematic diagram of the structure of the first protective cover, the first rotating component, and the conductive component in Embodiment 22;

[0076] Figure 69 is a schematic diagram of the structure of the first end in Embodiment 23;

[0077] Figure 70 is a schematic diagram of the developing chamber in Example 23;

[0078] Figure 71 is a schematic diagram of the developing box in Example 24;

[0079] Figure 72 is a schematic diagram of the structure of the first chip, the second chip, the translational component, the first rotating component, the first conductive component, and the second conductive component in Embodiment 24;

[0080] Figure 73 is a schematic diagram of the developing cartridge in Example 25;

[0081] Figure 74 is an exploded structural diagram of the first end of the box in Example 25;

[0082] Figure 75 is a schematic diagram of the structure of the first rotating component and the idler wheel in Embodiment 25;

[0083] Figure 76 is a schematic diagram of the exploded structure of the second end in Example 25;

[0084] Figure 77 is a schematic diagram of the structure of the movable component and the intermediate conductive component in Embodiment 25;

[0085] Figure 78 is a schematic diagram of the engagement relationship between the idler wheel, the first rotating component, and the conductive component when viewed from left to right in Embodiment 25 and when the moving part and the moving part are in the separated position.

[0086] Figure 79 is a schematic diagram of the structure of the reset protrusion and the reset mating protrusion in Example 25.

[0087] Figure 80 is a schematic diagram of the developing cartridge in Example 26;

[0088] Figure 81 is an exploded structural diagram of the first cover, chip bracket, chip, and second chip in Embodiment 26;

[0089] Figure 82 is an exploded structural diagram of the first cover, chip holder, chip, and second chip in Embodiment 26. Detailed Implementation

[0090] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0091] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0092] In the description of this specification, it should be understood that the directional terms such as "upper" and "lower" used in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0093] In this specification, the left-right direction indicated in the attached drawings is the first direction, the front-back direction indicated in the attached drawings is the second direction, and the up-down direction indicated in the attached drawings is the third direction.

[0094] The present application will now be described in further detail with reference to the accompanying drawings.

[0095] Example 1:

[0096] As shown in Figure 1, the developing cartridge 1 is detachably mounted on the drum assembly 20 of the image forming apparatus. The drum assembly 2 is provided with a photosensitive drum. The main housing 2 of the image forming apparatus is provided with a blocking member 21, a light-emitting device, and a light source detection device. The blocking member 21 blocks the light source detection device from detecting the light source emitted by the light-emitting device.

[0097] As shown in Figures 2-7, the developing cartridge 1 includes a cartridge body 10, a transmission assembly, a first protective cover 111, an electrode 102, and a component to be tested.

[0098] As shown in Figures 2 and 3, the housing 10 contains developer. The housing 10 has a first end 11 (left end) and a second end 12 (right end) opposite to each other in a first direction. In a second direction, the housing 10 has a third end 13 (front end) and a fourth end 14 (rear end) opposite to each other. In a third direction, the housing 10 has a fifth end 15 (upper end) and a sixth end 16 (lower end) opposite to each other. The first, second, and third directions intersect each other, preferably orthogonally. In this embodiment, for ease of description, the first direction is defined as the left-right direction, the second direction as the front-back direction, and the third direction as the up-down direction. A first cover 111 is detachably fixedly installed on the first end 11, and the first cover 111 at least covers the transmission assembly. The first cover 111 is used to protect the transmission assembly. A second cover 121 is detachably installed on the second end 12.

[0099] As shown in Figure 3, the storage medium 101 is located at the first end 11. The storage medium 101 is used to store relevant information of the developing cartridge 1 and to transmit the relevant information of the developing cartridge 1 to the image forming apparatus. The storage medium 101 includes an electrical contact surface, which can be directly located on the storage medium 101 and electrically connected to it, or it can be electrically connected to the storage medium 101 through an intermediate component. The electrical contact surface is used to directly contact the image forming apparatus to transmit the information in the storage medium 101 to the image forming apparatus. The storage medium 101 can be supported by the housing 10, supported by the first cover 111, or supported by both the housing 10 and the first cover 111.

[0100] As shown in Figures 2 and 3, the developing cartridge 1 is equipped with a developing roller 131, a powder feeding roller, and a stirring frame. The developing roller 131, powder feeding roller, and stirring frame are all supported by the cartridge body 10 and can rotate relative to the cartridge body 10. The developing roller 131 rotates about a first axis extending in a first direction, and the rotation axes of the powder feeding roller and the stirring frame both extend in the first direction. The powder feeding roller delivers developer to the developing roller 131, which contacts the photosensitive drum, transferring the developer to the photosensitive drum. The stirring frame is used to stir the developer within the cartridge body 10 to prevent developer clumping.

[0101] As shown in Figure 6, the second end 12 is also provided with an electrode 102. The electrode 102 is used to contact the power supply terminal in the image forming apparatus to receive the electrical energy output by the image forming apparatus. After receiving the electrical energy output by the image forming apparatus, the electrode 102 transmits the electrical energy to at least one of the developing roller 131 and the powder feeding roller, so that the developing roller 131 and the powder feeding roller are charged to adsorb the developer.

[0102] As shown in Figure 3, a transmission assembly is disposed at the first end 11. The transmission assembly includes a drive unit 40 rotatably mounted on the first end 11, which rotates about a second axis extending in a first direction. The drive unit 40 includes a coaxially integrally formed drive gear 401 and a power receiving unit, with the drive gear 401 being closer to the first end 11 in the first direction than the power receiving unit. A drive unit mounting post extending in the first direction is provided on the side wall of the first end 11, and the drive unit 40 is rotatably mounted on the drive unit mounting post. The power receiving unit is used to connect to the power output shaft on the image forming apparatus to receive the power output by the image forming apparatus and transmit the power to the gear on the transmission assembly.

[0103] The transmission assembly also includes a developing gear 41, a powder feeding gear 42, a first idler gear 43, a stirring gear 44, and a second idler gear 45. The developing gear 41 is fixedly mounted on the end of the developing roller 131 near the first end 11 in a first direction. The developing gear 41 receives power transmitted from the drive gear 401 and drives the shaft of the developing roller 131 to rotate together. The powder feeding gear 42 is coaxially fixedly mounted on the end of the powder feeding roller near the first end 11 and rotates together with the powder feeding roller. The stirring gear 44 is coaxially fixedly mounted on the end of the stirring frame near the first end 11 and rotates together with the stirring frame. The developing gear 41, the powder feeding gear 42, and the first idler gear 43 all mesh with the drive gear 401 to receive power, and the first idler gear 43 meshes with the stirring gear 44 to transmit power to the stirring gear 44. The stirring gear 44 meshes with the second idler gear 45 to cause the second idler gear 45 to rotate. The axis of rotation of the second idler gear 45 extends in a first direction. The second idler gear 45 includes a first bevel tooth portion 450 and a tooth-deficient portion. The second idler gear 45 can disengage from the stirring gear 44 and stop rotating. This embodiment does not limit the number of gears in the transmission assembly or the meshing relationship between the gears; it can be set according to actual needs.

[0104] As shown in Figures 2-7, in this embodiment, the component being detected includes a rotating part 51, a trigger part, a conductive part, a connecting part 53, a power supply part 54, and a light-emitting part 55. The connecting part 53 electrically connects the power supply part 54, the light-emitting part 55, and the trigger part together. In this embodiment, the connecting part 53 is a conductive part, preferably a conductive steel sheet. In some embodiments, it can also be a wire. The trigger part, the conductive part, the power supply part 54, and the light-emitting part 55 are connected by the connecting part 53 to form a circuit and realize the transmission of electrical energy.

[0105] As shown in Figures 3 and 4, the rotating member 51 is disposed near the first end 11. The rotating member 51 includes a second bevel tooth portion 510, which meshes with the first bevel tooth portion 450 so that the rotating member 51 receives power transmitted by the second idler wheel 45 and rotates. The rotation axis of the rotating member 51 intersects the first direction, preferably the rotation axis of the rotating member 51 extends upward in the third direction. When the toothed portion of the second idler wheel 45 is opposite to the stirring gear 44, the rotating member 51 follows the second idler wheel 45 and stops rotating. In some embodiments, the second bevel tooth portion 510 of the rotating member 51 may also be toothed, and the second bevel tooth portion 510 may disengage from the second idler wheel 45 and stop rotating.

[0106] The trigger part is located on the top of the rotating member 51 and can be fixedly connected to the rotating member 51 by welding or gluing. The trigger part rotates with the rotating member 51 and is made of conductive material, preferably a conductive steel sheet, which is generally disc-shaped. The connecting member 53 includes a first conductive contact and a second conductive contact, and the trigger part is located between the first conductive contact and the second conductive contact. The trigger part rotates with the rotating member 51 and is used to connect or disconnect the first conductive contact and the second conductive contact, thereby generating an electrical signal to control the light-emitting element 55 to light up or turn off. That is, in this embodiment, the rotating member 51 is the detected element that controls the on / off state of the circuit, which indirectly determines whether the circuit is on or off, and the trigger part on it can be regarded as a switch. In some embodiments, the detected element can be a translational element (such as a rack).

[0107] The triggering part includes a first triggering part 500 and a second triggering part. The first triggering part 500 is a complete circle. The second triggering part is located inside the first triggering part 500 in the radial direction of the rotating member 51. The second triggering part is composed of multiple conductive blocks, and spacers are provided between the multiple conductive blocks. The spacers are made of insulating material. In some embodiments, a portion of the rotating member 51 is made of conductive material or has conductive material disposed thereon to serve as the triggering part.

[0108] The second triggering part includes a first conductive block 501, a second conductive block 502, a third conductive block 503, a fourth conductive block 504, and a fifth conductive block 505, all of which are spaced apart along the rotation direction of the rotating member 51. The spacers include a first spacer 511, a second spacer 512, a third spacer 513, a fourth spacer 514, and a fifth spacer 515, all of which are also spaced apart along the rotation direction of the rotating member 51. For example, a first conductive block 501 is disposed between the first spacer 511 and the second spacer 512. This embodiment does not limit the number, shape, or size of the conductive blocks and spacers; they can be configured according to actual needs.

[0109] As shown in Figures 3 and 5, the conductive element is made of a conductive material, which can be conductive resin or a metal such as conductive steel sheet. The conductive element includes a first conductive element 521 and a second conductive element 522. The first conductive element 521 and the second conductive element 522 do not contact each other, and both the first conductive element 521 and the second conductive element 522 are electrically connected to the connector 53, but they cannot directly contact each other for electrical connection. The first conductive element 521 includes a first contact protrusion 5211 (i.e., a first conductive contact), and the second conductive element 522 includes a second contact protrusion 5221 (i.e., a second conductive contact). In the first direction, the first contact protrusion 5211 and the second contact protrusion 5221 are arranged on the left and right, respectively, that is, they are staggered in the first direction. In this embodiment, it is preferred that the first contact protrusion 5211 is further away from the rotation axis of the rotating element 51 than the second contact protrusion 5221. The first contact protrusion 5211 is used to contact the first trigger part 500, and the second contact protrusion 5221 is used to contact the second trigger part. When the first contact protrusion 5211 and the second contact protrusion 5221 are simultaneously in contact with the first trigger part 500 and the second trigger part, respectively, the first conductor 521 and the second conductor 522 are electrically connected. When only the first contact protrusion 5211 is in contact with the first trigger part 500, the first conductor 521 and the second conductor 522 are not electrically connected.

[0110] As shown in Figures 2 and 7, in this embodiment, the power supply component 54 is preferably a battery. The power supply component 54 stores electrical energy. When the power supply component 54 is in a closed circuit, it releases electrical energy and transfers it to the components in the circuit. The power supply component 54 includes a positive electrode 541 (+) and a negative electrode 542 (-). The connector 53 connects the positive electrode 541 and the negative electrode 542 respectively, allowing the electrical energy to form a complete circuit. In this embodiment, preferably, the positive electrode 541 is closer to the first end 11 than the negative electrode 542 in the first direction. In the first direction, the power supply component 54 is located between the light-emitting component 55 and the conductive component.

[0111] The light-emitting element 55 is located at the second end 12 and is connected to the connector 53. When the circuit is open, it receives electrical energy released by the power supply element 54 and emits light. The light-emitting element can be an LED light, a small bulb, or other light-emitting objects. In the second direction, the light-emitting element 55 is further away from the developing roller 131 than the electrode 102.

[0112] A top cover 151 is provided at the fifth end 15, and a first mounting part 105 is provided on the top cover 151. The first mounting part 105 is a groove-shaped recessed in the third direction. The first mounting part 105 is used to enable the power supply component 54 to be stably installed on the housing 10. The connector 53 and the conductor are located at the fifth end 15 and supported by the top cover 151.

[0113] As shown in Figure 6, the second cover 121 is provided with an abutment 1211, a second mounting portion 1212, and a third mounting portion 1213. The abutment 1211 is a protrusion extending upward in a second direction or a third direction. The abutment 1211 is used to contact the blocking member 21. In some embodiments, the abutment 1211 may be directly provided on the housing 10 or located as a separate component at the second end 12. In the second direction, the abutment 1211 is further away from the developing roller 131 than the electrode 102. In this embodiment, it is preferred that the abutment 1211 is closer to the developing roller 131 than the light-emitting element 55 in the second direction. The second mounting portion 1212 is used to mount the light-emitting element 55. The third mounting portion 1213 is a groove in the first direction. The third mounting portion 1213 is used to support the portion of the connector 53 located on the second cover 121, so that the connector 53 and the light-emitting element 55 are stably connected.

[0114] In this embodiment, based on the connection of the connector 53 to the conductive element, the light-emitting element 55 and the power supply element 54, the connector 53 is divided into a first connecting part 531, a second connecting part 532 and a third connecting part 533. The second connecting part 532 and the third connecting part 533 are always connected to the light-emitting element 55 and the power supply element 54 respectively. The first connecting part 531 is turned on according to whether the second conductive element 522 is in contact with the second triggering part to determine whether the entire circuit is turned on, thereby affecting whether the light-emitting element 55 can emit light.

[0115] As shown in Figure 7, when the first conductive element 521 is in contact with the first trigger part 500 and the second conductive element 522 is in contact with the first spacer block 511, the entire circuit is in an open circuit state and the light-emitting element 55 does not emit light. When the first conductive element 521 is in contact with the first trigger part 500 and the second conductive element 522 is in contact with the first conductive block 501, the entire circuit is in a closed circuit state and the light-emitting element 55 emits light.

[0116] The rotation of the rotating member 51 determines whether the second conductive member 522 can contact the conductive block in the second trigger part, thereby ensuring the circuit is open and whether the light-emitting member 55 can emit light.

[0117] As shown in Figures 8 and 9, when the developing cartridge 1 is installed on the drum assembly 20 and located inside the image forming apparatus, the abutment member 1211 abuts against the blocking member 21 and remains in abutment state. This causes the blocking member 21 to move and block the light source emitted by the light-emitting device inside the image forming apparatus. The light source detection device inside the image forming apparatus cannot detect the light source and generates the first signal T1. At this time, the circuit on the developing cartridge 1 is in an open circuit state, the second conductive member 522 is in contact with the first spacer block 511, and the light-emitting member 55 does not emit light.

[0118] When the driving unit 40 receives the power output from the image forming apparatus, and the rotating member 51 rotates after receiving the power transmitted by the driving unit 40, the second conductive member 522 passes over the first spacer block 511 and contacts the first conductive block 501, making the circuit in a closed state. The light-emitting member 55 emits light under the action of the electrical energy released by the power supply unit 54. After the light source detection device detects the light source, it generates a second signal T2. As the rotating member 51 rotates, the second conductive member 522 continuously contacts multiple spacers and conductive layers, thereby causing the light-emitting member 55 to emit and extinguish light multiple times. The image forming apparatus generates signals multiple times. The emitting and extinguishing process is the same as the above process, only the emitting time and interval are different, which will not be described in detail here. The extinguishing mentioned in this embodiment can be that the light-emitting member 55 does not emit light at all, or the intensity of the emitted light is insufficient to be detected by the light source detection device.

[0119] When the rotating component 51 stops rotating following the second idler wheel 45, the second conductive component 522 contacts the first spacer block 511 again, the circuit is in an open circuit state, the light-emitting component 55 is turned off, and the light source detection device cannot detect the light source.

[0120] In this embodiment, the presence or absence of light emission by the light-emitting element satisfies the information such as the number of times the light source is detected by the light source detection device and the duration of the interval, and forms a signal, enabling the image forming apparatus to identify the developing cartridge 1. This embodiment does not limit the number of times or the duration of light emission, and can be set according to actual needs.

[0121] Example 2:

[0122] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 1. The difference between this embodiment and Embodiment 1 is that the structure of the component being tested is different.

[0123] As shown in Figures 10-12, in this embodiment, the rotating member 46 receives power from the stirring gear 44 and rotates. Its rotation axis extends in the first direction. The rotating member 46 includes a gear part 461, an abutment part 462, and a recessed part 463. The gear part 461 is missing teeth. It can mesh with the stirring gear 44 and rotate, or it can disengage from the stirring gear 44 and stop rotating. In the first direction, the abutment part 462 is closer to the second end 12 than the gear part 461. The recessed part 463 is recessed in the radial direction of the rotating member 46. The recessed part 463 and the abutment part 462 form a complete circle. An inclined surface 4631 is provided on the recessed part 463. The inclined surface 4631 can also be an arc surface.

[0124] In this embodiment, the component under test includes a power supply component 54 and a light-emitting component 55, which are the same as in Embodiment 1 and will not be described again here. The component under test also includes a connector 53, a switch component 56, and a control unit 57. The connector 53 is preferably a conductive steel sheet or a wire, and is used to connect the other components in the component under test to form a conductive circuit, thereby causing the light-emitting component 55 to emit light so that the light source detection device can detect the signal.

[0125] The housing 10 is provided with a support portion 106, which is a cylindrical protrusion extending in the second direction. The switch 56 is a swinging member, and the switch 56 is provided with a supported portion 563, which is a circular hole. The switch 56 and the support portion 106 are connected by a shaft hole so that the switch 56 is rotatably supported by the housing 10. The axis of rotation of the switch 56 extends in the second direction. The switch 56 also includes a trigger end (i.e., a switch portion) and a contact end 562. The trigger end and the contact end 562 are located at opposite ends of the switch 56 in the first direction. The trigger end is closer to the second end 12 than the contact end 562, and the supported portion 563 is located between the two. The trigger end includes a first trigger portion 5611 and a second trigger portion 5612, which are protruding and arranged to the left and right in the first direction. Preferably, the first trigger portion 5611 is farther away from the second end 12 than the second trigger portion 5612. The abutting end 562 is used to contact the rotating member 46, causing the switching member 56 to swing relative to the housing 10. When the abutting end 562 is located in the recess 563 of the switching member 56, the trigger end is in a raised state; when the abutting end 562 abuts against the abutting portion 462, the trigger end is in a pressed state. At least the trigger end of the switching member 56 is made of conductive material, or the entire switching member 56 may be made of conductive material.

[0126] The control unit 57 includes a control module and a storage module. The storage module stores a program for controlling the light-emitting element 55 to light up and turn off. The control module executes the program and outputs an electrical signal to control the light-emitting element to light up or turn off. When the circuit containing the control unit 57 and the light-emitting element 55 is open, the light-emitting element 55 lights up and turns off according to the instructions of the control unit 57. The duration and number of times the light-emitting and turning-off occur are controlled by the control unit 57.

[0127] The connector 53 has a first connecting portion 591 and a second connecting portion 592 near the first end 11. The first connecting portion 591 has a certain elasticity. The first connecting portion 591 and the second connecting portion 592 do not directly contact each other and are arranged to the left and right in the first direction. In the first direction, the second connecting portion 592 is closer to the second end 12 than the first connecting portion 591. The first connecting portion 591 and the second connecting portion 592 contact the first trigger portion 5611 and the second trigger portion 5612, respectively. When the first connecting portion 591 contacts the first trigger portion 5611 and the second connecting portion 592 contacts the second trigger portion 5612, that is, when the trigger end is in a pressed state, the connector 53 connects the entire detected component into a conductive loop. The light-emitting element 55 receives the electrical energy released by the power supply element 54 and lights up and turns off under the command issued by the control unit 57. In this embodiment, the first connecting part 591 and the second connecting part 592 can be regarded as the first conductive element and the second conductive element, respectively, or they can be conductive elements that are separately provided to make electrical contact with the switching element, as in Embodiment 1.

[0128] When the developing cartridge 1 does not receive power output from the image forming apparatus, the abutted end 562 is located at the recessed portion 463 of the rotating member 46, the trigger end is in a raised state, at least the second connecting portion 592 does not contact the second trigger portion 5612, the entire circuit is in an open circuit state, and the light-emitting member 55 does not emit light.

[0129] When the drive unit 40 receives the power output from the image forming apparatus and transmits the power to the rotating member 46 to make the rotating member 46 rotate, the abutting end 562 abuts against the inclined surface 4631 of the recessed part 463 and gradually disengages from the recessed part 463. The switch member 56 rotates relative to the housing 10. When the recessed part 463 disengages from the abutting part 562, the trigger end is in a pressed state. The first connecting part 591 contacts the first trigger part 5611 and the second connecting part 592 contacts the second trigger part 5612, thereby making the entire circuit conductive. The light-emitting member 55 emits light. The first connecting part 591 is squeezed by the first trigger part 5611 and has elastic force.

[0130] As the rotating component 46 continues to rotate, the light-emitting component 55 alternates between emitting and extinguishing light. When the rotating component 46 disengages from the stirring gear 44 and stops rotating, the detection ends, and the abutted end 562 returns to the recessed portion 463. The first connecting portion 591 releases its elastic force, causing the switch component 56 to swing in the opposite direction, thus keeping the trigger end in a raised state. At least the second connecting portion 592 does not contact the second trigger portion 5612, and the entire circuit is in an open circuit state. Alternatively, a separate elastic component can be provided to make the switch component 56 swing in the opposite direction, or the weight of the abutted end 562 can be made greater than the weight of the trigger end, causing the abutted end 562 to swing again due to gravity.

[0131] In this embodiment, the rotating member 46 controls the switching member 56 to move between the on and off positions. The switching member 56 activates and / or deactivates the control unit 57. The control unit 57 generates an electrical signal to control the light-emitting member 55 to light up or turn off. In other words, in this embodiment, the rotating member 46 is the detected member that controls the on / off state of the control circuit.

[0132] Example 3:

[0133] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 1. The difference between this embodiment and Embodiment 1 is that the component being tested also includes a light guide 61.

[0134] As shown in Figures 13-15, the light-emitting element 55 receives electrical energy released by the power supply element 54 and emits light. The light source emitted by the light-emitting element 55 is not directly received by the light source detection device 201, but is indirectly transmitted to the light source detection device through the light guide element 61.

[0135] In this embodiment, the light-emitting element 55 is disposed on the box body 10, preferably at the fifth end 15, and the distance between the light-emitting element 55 and the second end 12 in the first direction is less than the distance between the light-emitting element 55 and the first end 11. That is, the light-emitting element 55 is supported by the box body 10, so that the connector 53 connected to the light-emitting element 55 also only needs to be disposed on the box body 10, thereby simplifying the structure and installation difficulty of the connector 53. In some embodiments, it may also be supported by the second cover 121.

[0136] The second cover 121 is provided with a mounting groove 1214 extending in a first direction. The light guide 61 is at least partially located within the mounting groove 1214, and the light guide 61 is preferably fixedly mounted within the mounting groove 1214 by a snap-fit ​​method. The light guide 61 is preferably a light guide post, and the light guide 61 includes a light receiving part 611 and a light transmitting part 612. In the first direction, the light receiving part 611 is closer to the first end 11 than the light transmitting part 612. The light receiving part 611 is a columnar shape extending in the first direction. The light receiving part 611 is disposed adjacent to the light emitting element 55, and a light inlet is provided on the light receiving part 611 to receive the light source emitted by the light emitting element 55. In the first direction, the light transmission part 612 is further away from the light-emitting element 55 than the light receiving part 611. Preferably, they are integrally formed, but they can also be separate components. The light transmission part 612 protrudes from the light receiving part 611, and their junction is curved or zigzag-shaped. The light transmission part 612 protrudes upwards in a third direction and forwards in a second direction, meaning its extension direction intersects with both the second and third directions. The light transmission part 612 has a light outlet for transmitting the light source received by the light guide 61 to the outside. The light inlet of the light receiving part 611 receives the light source emitted by the light-emitting element 55 and transmits it to the light transmission part 612 via reflection within the light guide 61, so that the light source exits from the light outlet along the X direction and is transmitted to the light source detection device 201.

[0137] The light guide 61 is also provided with a buckle so that the light guide 61 can be stably set on the second cover 121. In some embodiments, it can also be supported by the box body 10 or supported by the box body 10 and the second cover 121.

[0138] As shown in Figure 16, in some embodiments, the light-emitting element 55 can be positioned adjacent to the first end 11, that is, the distance between the light-emitting element 55 and the second end 12 in the first direction is greater than the distance between the light-emitting element 55 and the first end 11. Simultaneously, the length of the light-receiving part 611 in the first direction is increased so that the light guide 61 can stably receive the light source transmitted by the light-emitting element 55. This structure can further simplify the structure of the circuit where the light-emitting element 55 is located and reduce the production cost of the developing cartridge 1. It can also be shown that the position of the light-emitting element 55 in this embodiment has no effect on whether the light-emitting element 55 stably transmits the light source to the light source detection device; the position of the light-emitting element 55 can be set according to actual needs.

[0139] Example 4:

[0140] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 3. The difference between this embodiment and Embodiment 3 is that the structure of the light guide is different.

[0141] As shown in Figures 17-18, in this embodiment, the light guide 61 is a light guide plate, and a light guide surface 610 is provided on the light guide 61. The light guide surface 610 can be a mirror or other surface with reflective function. The extension direction of the light guide surface 610 is inclined relative to the first direction, the second direction, and the third direction. That is, the light guide surface 610 extends to the left in the first direction, extends forward in the second direction, and extends upward in the third direction. In this embodiment, the intersection angle between the light guide surface 610 and the first direction, the second direction, and the third direction is not limited, so that all or part of the light source can be transmitted to the light source detection device 201.

[0142] When the light-emitting element 55 emits a light source, the light source is transmitted to the light guide surface 610 along the X1 direction. In this embodiment, the X1 direction is preferably parallel to the first direction, but it can also be tilted relative to the first direction. After the light guide surface 610 receives the light source, it causes the light source to be emitted, which in turn causes the light source to be reflected to the light source detection device 201 along the X2 direction. The X2 direction intersects the X1 direction.

[0143] In this embodiment, the light-emitting element 55 can be placed near the second end 12, or the light-emitting element 55 can be placed near the first end 11 after the light source is stably transmitted to the light guide surface 610, so as to further simplify the structure of the circuit where the light-emitting element 55 is located.

[0144] Example 5:

[0145] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 1. The difference between this embodiment and Embodiment 1 is that the structure of the power supply component is different. In this embodiment, the developing cartridge 1 does not need to be equipped with a power supply component with its own power.

[0146] As shown in Figures 19-21, an electrical transmission component is provided on the developing cartridge 1. The electrical transmission component is used to electrically connect with the connector 53 and the electrode 102 so that the connector 53 receives the electrical energy transmitted by the electrode 102, thereby enabling the light-emitting element 55 to receive electrical energy and emit light. That is, the electrode can be regarded as the power supply component in this embodiment, which meets the electrical energy requirements of the light-emitting element 55 when it emits light.

[0147] A bearing 103 is provided at the second end 12, and the bearing 103 rotatably supports the developing roller 131 and the powder feeding roller located at the end of the second end 12. The electrode 102 is preferably a conductive steel sheet. The electrode 102 is supported by the bearing 103 and includes an electrical receiving part 1021. The electrical receiving part 1021 receives electrical energy output from the image forming apparatus by connecting to the power supply terminal in the image forming apparatus. The electrode 1021 transmits electrical energy to the developing roller 131 and the powder feeding roller, and at the same time provides electrical energy by being electrically connected to the connector 53 through the electrical transmission element.

[0148] In this embodiment, to rationally arrange the installation and layout of the electrical transmission components, the preferred electrical transmission components include a first electrical transmission component 63 and a second electrical transmission component 64. Both are preferably conductive steel sheets, but other conductive materials are also acceptable. The first electrical transmission component 63 and the second electrical transmission component 64 are supported by the housing 10, the bearing 103, or the second cover 121. In some embodiments, they can be integrally formed. The first electrical transmission component 63 directly contacts the electrode 102 to receive the electrical energy transmitted by the electrode 102. One end of the second electrical transmission component 64 contacts the first electrical transmission component 63, and the other end contacts the connector 53. This allows the electrical energy received from the electrode 102 by the first electrical transmission component 63 to be transmitted to the connector 53 through the second electrical transmission component 64. This enables the circuit containing the light-emitting element 55 to receive external electrical energy, thereby meeting the power requirements of the light-emitting element 55 when the circuit is in a closed state, ensuring that the light-emitting element 55 stably emits light and that the light source detection device 201 detects the light source. The electrical transmission component can be integrally formed with the connector 53, that is, the connector 53 is in direct electrical contact with the electrode 102, or the electrical transmission component is in direct contact with the power supply terminal on the image forming apparatus to receive electrical energy, and the electrical transmission component serves as a power supply component.

[0149] This embodiment also includes a grounding element 62, which ensures that the circuit containing the light-emitting element 55 forms a complete loop, guaranteeing the safety and stability of the circuit. Preferably, the grounding element 62 is positioned close to the first end 11, meaning the distance between the grounding element 62 and the second end 12 in the first direction is greater than the distance between the grounding element 62 and the first end 11. One end of the grounding element 62 contacts the trigger portion, and the other end contacts the exterior of the developing cartridge 1, preferably contacting a metal component within the image forming apparatus. In this embodiment, the grounding element 62 is preferably a conductive elastic element, such as a spring. This conductive elastic element can elastically avoid interference components within the image forming apparatus during the installation of the developing cartridge 1 into the image forming apparatus, ensuring stable installation of the developing cartridge 1 into the image forming apparatus and stable contact with the metal components within the image forming apparatus after installation.

[0150] The developing roller 131 includes a developing roller shaft and a developing body. The developing roller shaft drives the developing body to rotate. The developing body is made of conductive rubber. The powder feeding roller includes a powder feeding roller shaft and a powder feeding body. The powder feeding roller shaft drives the powder feeding body to rotate. The powder feeding body is made of conductive sponge material. In this embodiment, the developing roller shaft and the developing body are electrically connected, and the powder feeding roller shaft and the powder feeding body are also electrically connected. The developing body and the powder feeding body are used to adsorb developer. The electrode 102 is in direct contact with the developing roller shaft and the powder feeding roller shaft to transfer electrical energy.

[0151] In some embodiments, the developing roller and the developing body are not electrically connected (i.e., insulated), the developing roller does not receive electrical energy, and the powder feeding body contacts the developing body to transfer electrical energy to the developing body. Alternatively, an intermediate conductive element, such as a spring, may be provided, which is electrically connected to the electrode 102 and the developing body to further enable the developing body to receive electrical energy. Alternatively, a powder discharge blade used to limit the thickness of the developer layer on the developing body may be electrically connected to the electrode 102, and the powder discharge blade may act as an intermediate conductive element electrically connected to the developing body.

[0152] Example 6:

[0153] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 5. The difference between this embodiment and Embodiment 5 is that the structure of the power supply component is different.

[0154] As shown in Figures 22 and 23, in this embodiment, the electrical contact surface on the storage medium 101 provides power to the circuit where the light-emitting element 55 is located; that is, the electrical contact surface serves as the power supply component in this embodiment. The connector 53 includes a first line 534 and a second line 535, which connect the power supply component, the light-emitting element 55, and the conductive element together to form a circuit.

[0155] The storage medium 101 has multiple electrical contact surfaces, which are electrically connected to the storage medium 101. The electrical contact surfaces include a first electrical contact surface and a second electrical contact surface, which are spaced apart. A first line 534 contacts the first electrical contact surface, and a second line 535 contacts the second electrical contact surface. The first line 534 receives electrical energy emitted from the first electrical contact surface and allows the electrical energy to return to the second electrical contact surface after passing through the light-emitting element 55, the conductive element, and the second line 535. In this embodiment, the first electrical contact surface can be considered as the positive electrode of the battery, and the second electrical contact surface can be considered as the negative electrode.

[0156] In one embodiment, the first electrical contact surface serves as a power supply component to receive external electrical energy and transmit it to the light-emitting component 55 through the first line 534, while the second line 535 serves as a grounding component to contact external components to realize a circuit loop.

[0157] In another embodiment, there is no need to set up a rotating member 51 and a conducting member; the circuit itself is a complete loop. The storage medium 101 stores first information and second information. The first information is information on controlling the light emission duration and light emission interval of the light-emitting element 55, and the second information is other information about the developing cartridge 1. After the developing cartridge 1 is installed in the image forming apparatus, the electrical contact surface of the storage medium 101 provides electrical energy to the light-emitting element 55 and simultaneously acts as a control unit to control the light-emitting element 55 to emit light at appropriate times, so that the light source detection device 201 detects the light source and thereby causes the image forming apparatus to generate a signal.

[0158] Example 7:

[0159] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 1. The difference between this embodiment and Embodiment 1 is that the structure of the trigger part is different.

[0160] As shown in Figures 24-27, the component being tested in this embodiment includes a rotating component 60, a switching component 71, a connecting component 53, a power supply component 54, and a light-emitting component 55. The connecting component 53 connects the switching component 71, the power supply component 54, and the light-emitting component 55 in a circuit. The connecting component 53, the power supply component 54, and the light-emitting component 55 are the same as or similar to those in the above embodiment, and will not be described again here.

[0161] The switch 71 is preferably located near the first end 11. The switch 71 acts as a switch to determine whether the circuit containing the light-emitting element 55 is connected. A support 107 is provided on the housing 10. The support 107 includes a support post 1070 and a fixing buckle 1071. The support post 1070 extends upward in a third direction, and the fixing buckle 1071 is an elastic buckle. Preferably, there are multiple support posts 1070 and fixing buckles 1071. The switch 71 includes a first hole 710, which is preferably a through hole extending upward in a third direction. The number of first holes 710 matches the number of support posts 1070. A axial hole fit is formed between the first holes 710 and the support posts 1070 to allow the switch 71 to be mounted on the housing 10. The fixing buckles 1071 are snapped onto both ends of the switch 71 in a second direction to further secure the switch 71. In other embodiments, the switch 71 may be fixed to the housing 10 by welding or screws.

[0162] The switch 71 also includes a first terminal 712, a second terminal 713, and a trigger part 72. The first terminal 712 is connected to the power supply 54 via a connector 53, and the second terminal 713 is connected to the integrated board 550 via the connector 53. The trigger part 72 is a protrusion protruding in a first direction and is movably mounted on the main body of the switch 71, and is further movable relative to the main body of the switch 71 in the first direction. The switch 71 includes a second hole 711 extending in the first direction. The second hole 711 is preferably a blind hole. The trigger part 72 is at least partially movable within the second hole 711. To ensure that it does not detach from the second hole 711, a limiting structure such as a latch can be provided between the two. A first elastic member 720 is provided between the trigger part 72 and the sidewall of the second hole 711. The first elastic member 720 is preferably a compression spring, but can also be other elastic media. The first elastic member 720 can be compressed and extended in the first direction. It has a first position and a second position in the first direction, with the first position being further away from the second end 12 than the second position. When the trigger part 72 is in the second position, the circuit of the light-emitting element 55 is open, and the light-emitting element 55 emits light (the light source can be infrared light or other types of light sources); when the trigger part 72 is in the first position, the circuit of the light-emitting element 55 is closed, and the light-emitting element 55 does not emit light. When the trigger part 72 is subjected to an external force, it moves in the first direction toward the second end 12 to move from the first position to the second position, and the first elastic element 720 is compressed and continues to exert elastic force; when the external force disappears, the trigger part 72 moves in the first direction toward the first end 11 under the action of the first elastic element 720 to move from the second position to the first position.

[0163] The rotating member 60 is rotatably disposed at the first end 11. The rotating member 60 receives power transmitted by the transmission assembly and rotates. The axis of rotation of the rotating member 60 extends in a first direction. The rotating member 60 includes an engaging portion 600 and an abutting protrusion. The engaging portion 600 is toothed. The engaging portion 600 engages with the stirring gear 44 to allow the rotating member 60 to receive power and rotate. The toothed structure allows the engaging portion 600 to disengage from the stirring gear 44, thereby stopping the rotating member 60 from rotating.

[0164] The abutment protrusions are used to abut against the trigger portion 72 and drive the trigger portion 72 to move in a first direction. Multiple abutment protrusions protrude in the first direction. Preferably, the abutment protrusions include a first abutment protrusion 601, a second abutment protrusion 602, and a third abutment protrusion 603 spaced apart in the rotational direction of the rotating member 60. In the rotational direction of the rotating member 60, the first abutment protrusion 601, the second abutment protrusion 602, and the third abutment protrusion 603 sequentially abut against the trigger portion 72, causing the trigger portion 72 to move in the first direction toward the second end 12. To make the abutment protrusions and the trigger portion 72 abut against each other more smoothly, the first abutment protrusion 601, the second abutment protrusion 602, and the third abutment protrusion 603 are all provided with inclined or curved abutment surfaces, the extension direction of which intersects the first direction. Similarly, an inclined surface can also be provided on the trigger portion 72. The arc lengths of the first abutting protrusion 601, the second abutting protrusion 602, and the third abutting protrusion 603 can be the same or different, and the angle between their abutting surfaces and the first direction can be the same or different, which can be set according to actual needs.

[0165] As shown in Figure 26, the rotating member 60 rotates by receiving power transmitted from the transmission assembly, the first abutting protrusion 601 abuts against the trigger part 72 and is in the second position, the light-emitting member 55 is in the circuit path, the light-emitting member 55 receives electrical energy released by the power supply member 54 and emits light, and the light source detection member 201 detects the light source.

[0166] When the trigger part 72 is located at the interval between the first abutting protrusion 601 and the third abutting protrusion 603, the trigger part 72 is located in the first position under the action of the first elastic member 720, and the circuit where the light-emitting member 55 is located is disconnected.

[0167] When the first abutting protrusion 601, the second abutting protrusion 602 and the third abutting protrusion 603 abut against the triggering part 72, the triggering part 72 is in the second position and the circuit is open; when the triggering part 72 is located at the interval under the action of the first elastic member 720 (i.e., in the second position), the circuit is closed.

[0168] It is known that the duration of the light-emitting element 55 can be determined by the arc length of the abutment protrusion, the interval of the light-emitting element 55 can be determined by the interval between the abutment protrusions, the number of times the light-emitting element 55 emits light can be determined by the number of abutment protrusions, and the speed at which the light-emitting element 55 emits light can be determined by the moving speed of the trigger part 72 (i.e., the degree of inclination of the abutment slope).

[0169] In this embodiment, multiple abutting protrusions sequentially abut against the trigger portion 72 and disengage from the trigger portion 72 to complete the circuit's opening and closing, thereby causing the light-emitting element 55 to emit light and extinguish multiple times, thus meeting the needs of the image forming apparatus.

[0170] As shown in Figure 24, in this embodiment, the light-emitting element 55 is located on an integrated circuit board 550, and the integrated circuit board 550 is connected to the connector 53.

[0171] In another embodiment, the trigger portion 72 moves in a swinging manner after being abutted by the abutting protrusion, thereby opening up the circuit path where the light-emitting element 55 is located.

[0172] As shown in Figure 27, in other embodiments, the trigger portion 72 does not directly contact the abutment protrusion. An intermediate member 73 is also provided on the switch member 71, and the trigger portion 72 is located between the intermediate member 73 and the abutment protrusion. The intermediate member 73 is abutted by the abutment protrusion and moves, driving the trigger portion 72 to move. The intermediate member 73 is plate-shaped, with one end fixedly connected to the main body of the switch member 71, and the other end provided with an abutment protrusion 730. The abutment protrusion abuts against the abutment protrusion 730 to cause the intermediate member 73 to swing, thereby driving the trigger portion 72 to move in a first direction toward the second end 12.

[0173] In this embodiment, the switching element 71 is a micro switch.

[0174] Example 8:

[0175] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 7. The difference between this embodiment and Embodiment 7 is that the structure of the component being tested is different.

[0176] As shown in Figures 28-24, the component being detected in this embodiment includes a control unit 70, a rotating component 60, a switching component 71, a connecting component 53, a power supply component, and a light-emitting component 55. The rotating component 60 controls whether the circuit containing the light-emitting component 55 is conductive by controlling the closing and opening of the switching component 71. The switching component 71 includes a first terminal 712, a second terminal 713, and a trigger part 72. The first terminal 712 and the second terminal 713 are respectively connected to the control unit 70 through the connecting component 53.

[0177] The control unit 70 is preferably an integrated circuit board, i.e., an IC chip, which stores information such as the number of times the light-emitting element 55 emits light and the duration of light emission. Within a predetermined time, the control unit 70 controls the light-emitting element 55 to emit light and determines the number of times and the duration of light emission. That is, in this embodiment, the number of times the light-emitting element 55 emits light and the duration of light emission are not controlled by the number of times the rotating member 60 abuts against the switching member 71. In this embodiment, only one abutting protrusion may be provided, or only the end face of the rotating member 60 abuts against the switching member 71. In one embodiment, the rotating member 60 can move in the first direction and abut against the switching member 71 with its end face. In this embodiment, the light-emitting element 55 is disposed on the control unit 70 and electrically connected to the control unit 70 by means of welding or plugging. Furthermore, the light-emitting element 55 is located on the upper end face of the control unit 70 facing upward in the third direction, and is located on the side of the control unit 70 away from the first end 11 in the first direction and on the side away from the developing roller 131 in the second direction, that is, the light-emitting element 55 is located at the left rear position of the control unit 70. In the second direction, the distance L1 between the light-emitting element 55 and the rotation axis of the developing roller 131 is between 50 mm and 75 mm, and is preferably 62.5 mm in this embodiment. In the first direction, the electrode 102 is at least partially closer to the first end 11 than the light-emitting element 55.

[0178] When the developing cartridge 1 is installed in the image forming apparatus, in the second direction, the light source detection device 201 in the image forming apparatus is located in front of the light-emitting element 55. Therefore, the light emission direction X of the light-emitting element 55 (i.e., the main direction of the light emitted by the light-emitting element 55) intersects with the second direction and the third direction. In this embodiment, the included angle A1 between X and the second direction is 20° to 80°, and preferably 63°. In some embodiments, the light emission direction of the light-emitting element 55 can be directly parallel to the third direction, or the light-emitting element 55 can be moved forward to directly below or in front of the light source detection device 201. The light source can be transmitted to the light source detection device. That is, the angle A1 can vary depending on the size of L1. This embodiment does not impose a specific limitation.

[0179] The control unit 70 also includes a writing unit 701, a first connection port 702, a storage module 703, and a control module. The writing unit 701 and the first connection port 702 are both located on the same end face of the control unit 70 as the light-emitting element 55. The writing unit 701 has multiple metal surfaces and is used to contact external components to input information such as the number of times the light-emitting element 55 emits light and the duration of light emission into the control unit 70. The storage module 703 stores the program written through the writing unit 701 and sends the program out within a predetermined time. The storage module typically uses a flash memory chip or an EEPROM (Electrically Erasable Programmable Read-Only Memory). The control module executes the program and outputs electrical signals to control the light-emitting element to emit or extinguish light. The control module can be a microcontroller (MCU) or a programmable logic controller (PLC). The connector 53 is fixed by a first plug-in member 74, which is inserted into the first connection port 702 to electrically connect the control unit 70 to the switch member 71. In this embodiment, the control unit 70 can be considered a second storage medium different from the storage medium 101.

[0180] In this embodiment, the power supply component is electrically connected to the control unit 70 via electrical contact. The power supply component is preferably a button battery. In this embodiment, the power supply component includes a first power supply component 751 and a second power supply component 752 with a specification of 1.5V. In some embodiments, only a single 3V power supply component may be provided. The first power supply component 751 and the second power supply component 752 are electrically connected to the lower end face of the control unit 70 in a third-party upward direction to transfer electrical energy. That is, in this embodiment, the light-emitting element 55 and the power supply component are located on different end faces of the control unit 70 in a third-party upward direction. To prevent the power supply component from losing contact with the control unit 70, a limiting component is also provided. The limiting component is fixedly connected to the control unit 70 by welding or adhesive, and the power supply component is located between the limiting component and the lower end face to be limited.

[0181] In this embodiment, the limiting components include a first limiting component 753 and a second limiting component 754, which respectively limit the first power supply component 751 and the second power supply component 752. The limiting components are preferably steel sheets. The positive terminal of the power supply component is in contact with the lower end face of the control unit 70, and the negative terminal is in contact with the limiting component.

[0182] The control unit 70 is also equipped with other electronic components such as resistors, capacitors and transistors located on the lower end face to form a complete electronic system. This embodiment does not limit the specific location of each electronic component, and can be set according to actual needs.

[0183] A mounting member 58 is also provided at the second end 12. The mounting member 58 supports the control unit 70 and is connected to the control unit 70 by a snap-fit ​​mechanism. The mounting member 58 covers at least the upper surface of the control unit 70 to protect it. The mounting member 58 has an exposure hole 581 to expose the light-emitting element 55 so that the light emitted by the light-emitting element 55 can be detected by the light source detection device. After the mounting member 58 and the control unit 70 are snapped together, the mounting member 58 is fixedly connected to the second cover 121 by a snap-fit ​​or screws, or it can be fixedly connected to the housing 10.

[0184] In this embodiment, the connector 53 is at least partially located at the fourth end 14. That is, the connector 53 is connected to the switch 71, extends in the second direction, bends, and extends to the left in the first direction to the second end 12, and then is electrically connected to the control unit 70. This structure can improve the wiring of the connector and hide the connector 53 in the fourth end 14 to prevent the connector 53 from being interfered with by external components. A receiving portion can be provided at the fourth end 14 to accommodate the connector 53, or a mounting buckle can be provided to support the connector 53.

[0185] When the rotating member 60 rotates due to the power transmitted from the driving unit 40, it abuts against the switch member 71, keeping it in a closed state. The light-emitting element 55 illuminates and extinguishes under the control of the control unit 70, enabling the light source detection device to detect the light source and generate a signal. When the rotating member 60 stops rotating, it disengages from the switch member 71, the switch opens, the control unit 70 stops issuing commands to the light-emitting element 55, and the light-emitting element 55 extinguishes. In this embodiment, the rotating member 60 acts as the detected element, causing the switch member 71 to close so that the control unit 70 can issue commands.

[0186] In one embodiment, the rotating member 60 may be in constant contact with the switching member 71, meaning that the switching member 71 does not need to be disconnected again after it is turned off. The command issued by the control unit 70 will only cause the light-emitting member 55 to change between emitting light and turning off within a certain period of time. The closing of the switching member 71 is only to transmit a signal to the control unit 70 to start issuing a command.

[0187] As can be seen, in this embodiment, the control unit 70 can issue commands to the light-emitting element 55 multiple times. That is, when the rotating element 60 is made to mesh with the stirring gear 44 again to receive power and rotate, and the rotating element 60 triggers the switch element 71 again, the control unit 70 can issue commands to the light-emitting element 55 again.

[0188] As shown in Figure 35, in this embodiment, the stirring rack is not provided. The bottom wall 161 of the cartridge 10 is inclined relative to the second direction. The bottom wall 161 extends forward in the second direction and upward and downward in the third direction. There is an angle A2 between the bottom wall 161 and the second direction. The size of the angle A2 is 20° to 70°. In this embodiment, A2 is preferably 46°, but it can also be 35°. Under the influence of gravity, the developer in the cartridge 10 flows along the extension direction of the bottom wall 161, that is, it flows towards the developing roller 131 and the powder feeding roller. This structure can ensure that the developing roller 131 and the powder feeding roller can stably adsorb the developer even without the stirring rack. A reinforcing column 108 is also provided in the cartridge 10. The reinforcing column 108 extends upward in the third direction and is located between the two ends of the cover of the cartridge 10 in the second direction.

[0189] As shown in Figures 34 and 35, a powder filling port 122 is also provided at the second end 12. The developer 122 is filled into the cartridge 10 through the powder filling port 122. In the third direction, the bottom wall 161 is at least partially located below the powder filling port 122. In the second direction, the powder filling port 122 is located between the light-emitting element 55 and the developing roller 131, and between the rotating element 60 and the driving part 40. Viewed from the first direction, the reinforcing column 108 at least partially overlaps with the powder filling port 122.

[0190] As shown in Figure 35, the developing cartridge 1 also includes a cover plate 163 and a storage medium 101. The cover plate 163 extends in a first direction and is fixedly disposed at the sixth end 16 by means of a snap or screw. The cover plate 163 is provided with a mounting portion 1631 for mounting the storage medium 101, which extends in the first direction and is located at the first end 11.

[0191] The developing cartridge 1 also includes a bearing 103 and a connecting plate 104 mounted on the second end 12. The bearing 103 is located at the front end of the cartridge body 10 in the second direction, and the second cover 121 is located at the rear end of the cartridge body 10 in the second direction. The connecting plate 104 is mounted on the outer surface of the second cover 121 and the bearing 103. The rear end of the bearing 103 and the front end of the second cover 121 are fixed to the cartridge body 10 by the connecting plate 104. The front end of the bearing 103 is fixedly connected to the cartridge body 10 by a snap fastener, and the rear end of the second cover 121 is fixedly connected to the cartridge body 10 by a snap fastener or screws. The front end of the connecting plate 104 fixes the rear end of the bearing 103 to the cartridge body 10 by screws, and the rear end of the connecting plate 104 fixes the rear end of the front end of the second cover 121 to the cartridge body 10 by screws.

[0192] As shown in Figures 32 and 33, the casing 10 of the developing cartridge 1 includes an upper cover 10a and a lower cover 10b, which are welded together to form a cavity for containing developer. A cover plate 163 is mounted on the bottom surface of the lower cover 10b and can be connected by means of snaps or screws.

[0193] The casing 10 of the developing cartridge 1 also includes a protective cover 10c, which extends in a first direction. The upper cover 10a has a receiving portion 10a1 at its rear end in a second direction for receiving the connector 53, the receiving portion 10a1 being recessed downward relative to the upper surface of the upper cover 10a. The protective cover 10c is mounted on the receiving portion 10a1 to protect the connector 53.

[0194] One end of the protective cover 10c is provided with a protective part 10c1 for protecting the switch 71. After the protective cover 10c is installed on the upper cover 10a, the protective part 10c1 covers the switch 71 to protect the switch 71 from damage.

[0195] Example 9:

[0196] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 8, but the structure of the switching element in this embodiment is different from that in Embodiment 8.

[0197] As shown in Figures 36 and 37, in this embodiment, the switching element is the storage medium 101. One end of the connector 53 is electrically connected to the control unit 70, and the other end is electrically connected to the storage medium 101. When the developing cartridge 1 is installed in the image forming apparatus, and the electrical contact surface of the storage medium 101 makes electrical contact with the electrical contacts in the image forming apparatus, the control unit 70 receives a signal transmitted by the storage medium 101 through the connector 53. This signal causes the control unit 70 to issue commands to control the light-emitting element 55 to light up and turn off. That is, in this embodiment, the function of the switching element is no longer to determine the conduction and disconnection of the circuit where the light-emitting element 55 is located, but to send a signal to the control unit 70 to start outputting a command. The circuit where the light-emitting element 55 is located is always in the conducting state. The command issued by the control unit 70 causes the light-emitting element 55 to change between light-emitting and off for a period of time, rather than being in a constant alternating state of light-emitting and off. The developing cartridge 1 is provided with a second plug-in component 742. One end of the connector 53 is connected to the first plug-in component 74, and the other end is connected to the second plug-in component 742. The storage medium 101 is provided with a second connection port 1011. The second plug-in member 742 is inserted into the second connection port 1011 so that the storage medium 101 is electrically connected to the connector 53, thereby making the storage medium 101 electrically connected to the control unit 70.

[0198] In this embodiment, the connector 53 is at least partially located at the sixth end 16 (i.e., the bottom) of the housing 10, and extends upward from the sixth end 16 to connect with the control unit 70. A first receiving groove extending in a first direction may be provided at the sixth end 16, and a second receiving groove extending upward in a third direction may be provided at the second end 12 to mount the connector 53.

[0199] Electrode 102 can also be used as a signal source to trigger control unit 70. After the electrode is energized, an electrical signal is released to control unit 70 through connector 53. After the control unit 70 receives the electrical signal, it begins to control the lighting of light-emitting element 55.

[0200] A step-down unit can also be provided between the electrode 102 and the connector 53. The step-down unit reduces the external power received by the electrode 102 to the power that is adapted to the control unit 70.

[0201] The cover plate 163 covers at least part of the connector 53 to protect the portion of the connector 53 located at the sixth end 16.

[0202] In this embodiment, a reset part can also be provided on the control unit 70. The reset part is preferably a metal surface. When the control unit 70 needs to issue a command to the light-emitting element 55 again, the metal part can be used to contact the reset part and the writing part 701 at the same time. Even if the two are electrically connected, the control unit 70 can be reset.

[0203] In this embodiment, the storage medium 101 can also be disposed on the cover plate 163.

[0204] A rib 162 is also provided at the sixth end 16. The rib 162 is used to strengthen the strength of the box body 10. The rib 162 is also covered by the cover plate 163.

[0205] This embodiment simplifies the structure of the component being tested compared to the above embodiments, and only requires the drive unit 40, the developing gear 41, and the powder feeding gear 42, further simplifying the structure and cost of the developing cartridge 1.

[0206] Example 10:

[0207] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 8, but the structure of the switching element in this embodiment is different from that in Embodiment 8.

[0208] As shown in Figures 38-39, in this embodiment, the switch 63 is disposed at the fourth end 14, preferably close to the second end 12 in the first direction, which can save the length of the connector 55. The developing cartridge 1 is also provided with a slider 66, which can slide relative to the cartridge body 10 in the second direction. In the second direction, the slider 66 is further away from the developing roller 131 than the switch 71. The slider 66 is used to abut against the hair-triggering part 73 so that the switch 61 is in the closed state.

[0209] The housing 10 has a support protrusion 109 extending upward in a third direction. The support protrusion 109 is columnar and has a movable support slider 66. The support protrusion 109 includes a through hole extending in a second direction, and the slider 66 is inserted into the through hole for slidable connection with the support protrusion 109. An elastic element 661 is provided between the support protrusion 208 and the slider 66. Preferably, the elastic element 661 is a compression spring, which prevents the slider 66 from sliding forward in the second direction.

[0210] When the developing cartridge 1 is installed into the image forming apparatus, but the cover 202 of the image forming apparatus is not closed, the switch 71 is in the open state, and the control unit 70 cannot issue a command to make the light-emitting element 55 emit light. As the cover 202 begins to close gradually, the cover 202 abuts against one end of the slider 66, causing the slider 66 to overcome the elastic force of the elastic member 661 and slide forward in the second direction. The other end of the slider 66 abuts against the emitting part 73, causing the switch 71 to close. At this time, the control unit 70 issues a command to make the light-emitting element 55 switch between emitting light and being off within a predetermined time.

[0211] Example 11:

[0212] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 8, but the structure of the switching element in this embodiment is different from that in Embodiment 8.

[0213] As shown in Figures 40 and 41, in this embodiment, the switch is an insulating member 76, which is preferably an insulating strip. The insulating member 76 extends in the first direction. One end of the insulating strip 76 is fixedly connected to the rotating member 60, and the other end is located between the lower end face of the power supply member and the control unit 70 to isolate the two and prevent them from being electrically connected.

[0214] The rotating member 60 is provided with a connecting protrusion 604, and the insulating member 76 is provided with a hole. The hole and the connecting protrusion 604 are engaged to fix the two together. When the rotating member 60 receives the power transmitted by the driving unit 40 and rotates, the rotating member 60 drives the insulating member 76 to move as a whole, thereby causing the part of the insulating member 76 located at the lower end face of the power supply unit and the control unit 70 to be pulled out from between the two. The power supply unit and the control unit 70 are electrically connected, and the control unit 70 causes the light-emitting member 55 to emit light.

[0215] At the fourth end 14, a mounting groove or mounting buckle may be provided to support the insulating component 76.

[0216] In one embodiment, the insulating element 76 may also be manually removed between the lower end face of the power supply element and the control unit 70.

[0217] The purpose of providing the insulating element 76 in this embodiment is to prevent the power supply from being consumed when the developing cartridge 1 is not installed in the image forming apparatus.

[0218] Example 12:

[0219] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 8. The difference between this embodiment and Embodiment 8 lies in the structure of the transmission assembly.

[0220] As shown in Figures 42-45, in this embodiment, the transmission assembly only includes a drive unit 40, a developing gear 41, and a powder feeding gear 42. The meshing part 600 of the rotating member 60 directly meshes with the drive gear 401 to receive power and rotate, and disengages from the drive gear 401 after rotation and no longer rotates. This structure simplifies the structure of the first end 11, thereby reducing the cost of the developing cartridge 1. Correspondingly, in this embodiment, the switch member 71 that contacts the rotating member 60 is also disposed adjacent to the drive unit 40, and the connecting member 53 extends from the first end 11 to the second end 12 through the sixth end 16, and the connecting member 53 is covered by the cover plate 163.

[0221] In addition to the abutting protrusion 605, the rotating component 60 is also provided with a limiting protrusion 606. The first cover 111 is provided with a corresponding limiting protrusion 1110. The limiting protrusion 606 contacts the limiting protrusion 1110. When the rotating component 60 is not rotating or after rotation, the limiting protrusion 1110 prevents the rotating component 60 from shaking.

[0222] The powder filling port 122 is located at the first end 11, and when viewed from the first direction, the powder filling port 122 does not overlap with the first protective cover 111.

[0223] The developing cartridge 1 includes a first pushing part 1111 located at a first end 11 and a second pushing part 1215 located at a second end 12. The first pushing part 1111 and the second pushing part 1215 are used to receive the pushing force applied by the drum assembly to ensure close contact between the developing roller 131 and the photosensitive drum. In this embodiment, the first pushing part 1111 is preferably located at the rear end of the first cover 111, and the second pushing part 1215 is located at the rear end of the second cover 121. In a first direction, a handle 141 is located between the first pushing part 1111 and the second pushing part 1215, and in the first direction, the handle 141 is closer to the developing roller 131 than the first pushing part 1111 and the second pushing part 1215.

[0224] In this embodiment, in the second direction, the rear wall 140 of the housing 10 (i.e., the end wall of the fourth end 14) is closer to the rotation axis of the drive unit 40 than the first pushing part 1111. A first distance L1 exists between the rotation axis of the drive unit 40 and the rear wall 140 in the second direction. The magnitude of the first distance L1 is 40mm to 55mm, and in this embodiment, the first distance L1 is preferably 48mm. A second distance L2 exists between the rotation axis of the developing roller 131 and the rear wall 140 in the second direction. The magnitude of the second distance L2 is 50mm to 65mm, and in this embodiment, it is preferably 58mm. The extending direction of the rear wall 140 can be inclined relative to a third direction (calculated by taking the farthest part as the first distance L1) or parallel to a third direction.

[0225] Example 13:

[0226] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 1. The difference between this embodiment and Embodiment 1 is that the structure of the component being tested is different.

[0227] As shown in Figures 46 to 52, the developing cartridge 1 includes: a cartridge body 10, a conductive component, and a transmission component.

[0228] The developing roller 131 includes a developing body and a developing roller shaft 1311 coaxially arranged. The developing body is fixedly covered on the circumferential surface of the developing roller shaft 1311, and the developing roller shaft 1311 supports the developing body and drives the developing body to rotate. The powder feeding roller includes a powder feeding body and a powder feeding roller shaft, and the powder feeding roller shaft drives the powder feeding body to rotate.

[0229] The transmission assembly is located at the first end 11 and includes a drive unit 21a, a developing gear 22, and a powder feeding gear 23. The drive unit 21a includes a power receiving unit 211 and a drive gear 212 arranged coaxially, and transmits power to the developing roller 131 and the powder feeding roller. The developing gear 22 is fixedly installed at the right end of the developing roller shaft 1311, and meshes with the drive gear 212 to drive the developing roller 131 to rotate. The powder feeding gear 23 is fixedly installed at the right end of the powder feeding roller shaft, and meshes with the drive gear 212 to drive the powder feeding roller to rotate.

[0230] In some embodiments, the developing cartridge 1 further includes a stirring rack rotatably mounted within the cartridge body 10. The stirring rack includes a stirring shaft and stirring blades, the stirring blades rotating with the stirring shaft. The stirring blades are used to agitate the developer within the cartridge body 10, and the axis of rotation of the stirring rack extends in a first direction. A corresponding stirring gear is provided in the transmission assembly. The stirring gear is fixedly mounted on the right end of the stirring shaft and receives power transmitted from the drive unit 21a to drive the stirring rack to rotate. In other embodiments, the transmission assembly may also include any number of idler gears or transmission gears.

[0231] The conductive component is used to receive voltage provided by the image forming apparatus and to supply power to the developing roller 131. The conductive component includes a first conductive element 41a, a second conductive element 42a, an intermediate conductive element 43a, and a ground conductive element 44a.

[0232] A first conductive element 41a is fixedly disposed at the second end 12. The first conductive element 41a includes an electrical receiving part 411, a developing contact part 412, a first conductive part 413, and a powder feeding contact part 414 that are electrically connected to each other. The electrical receiving part 411 extends to the left in a direction away from the cartridge body 10. The developing contact part 412 extends in the front-to-back direction and is used to contact and be electrically connected to the developing roller shaft 1311. The powder feeding contact part 414 is electrically connected to the powder feeding roller. The first conductive part 413 extends in the vertical direction and is used to contact and be electrically connected to the second conductive element 42a. A second bracket 121a is fixedly installed at the second end 12. The second bracket 121a has a second support hole for supporting the developing roller shaft 1311. The developing contact part 412 passes through the second bracket 121a and extends into the second support hole to contact and electrically connect with the developing roller shaft 1311. The second bracket 121a has a left-protruding second support part 1211a for supporting the electrical receiving part 411. A second positioning protrusion is also fixedly installed on the second bracket 121a. A first positioning hole is provided on the first conductive element 41a. The second positioning protrusion is inserted into the first positioning hole to position the first conductive element 41a, preventing it from falling off the housing 10 or causing shaking. In this embodiment, the first conductive element 41a can be made of conductive materials such as conductive metal sheets, metal wires, or conductive resin.

[0233] The second conductive element 42a is used to transfer the potential from the second end 12 to the first end 11. In this embodiment, the second conductive element 42a is preferably a powder discharge blade. The other end of the powder discharge blade abuts against the circumferential surface of the developing body, so that when the developing roller 131 rotates, the developer carried on the developing body is controlled by the powder discharge blade as it passes through, preventing uneven developer thickness. The powder discharge blade is made of conductive metal material or conductive resin material, and extends in the first direction from the first end 11 to the second end 12.

[0234] The intermediate conductive component 43a is located at the first end 11. The intermediate conductive component 43a includes a third conductive part 432, a third main body part 431, a third positioning part, and a movable part 433. In this embodiment, the intermediate conductive component 43a can be made entirely of bent metal sheet or made of conductive materials such as conductive resin. The third main body part 431 extends in the front-rear direction and is located between the third conductive part 432 and the movable part 433 in the front-rear direction. The third positioning part is connected to the left end of the third main body part 431, and a third positioning hole is provided on the third positioning part. A third positioning post 435 is provided on the box body 10 to be inserted into the third positioning hole, thereby positioning the intermediate conductive component 43a by the third positioning post 435 to prevent the intermediate conductive component 43a from falling off or shaking from the box body 10. The third conductive part 432 is located at the front end of the third main body part 431, and the movable part 433 is located at the front end of the third main body part 432. At the rear end of 1, the third conductive part 432 contacts the powder dispensing knife. To prevent poor contact, the third conductive part 432 is bent in a "V" shape. This allows the third conductive part 432 to be squeezed and elastically deformed when it is inserted into the gap between the right end of the powder dispensing knife and the first end 11. Under the action of elastic force, the third conductive part 432 can make closer contact with the powder dispensing knife. Furthermore, the third conductive part 432 is clamped between the right end of the powder dispensing knife and the first end 11, which further positions the intermediate conductive part 43a and prevents the intermediate conductive part 43a from falling off or shaking from the box 10. The movable part 433 and the third main body part 431 form an angle through metal bending. The extension direction of the movable part 433 intersects the extension direction of the third main body part 431, so that the rear end of the movable part 433 is more to the right than the front end. The movable part 433 can move between a contact position and a separation position. When the movable part 433 is in the separation position, there is a first angle between the movable part 433 and the third main body part 431. When the movable part 433 is in the contact position, there is a second angle between the movable part 433 and the third main body part 431. The first angle is greater than the second angle. When the movable part 433 is in the contact position, it is in contact with and electrically connected to the grounding conductive member 44a. When the movable part 433 is in the separation position, it is not in contact with and not electrically connected to the grounding conductive member 44a. A first driven part 434 is also fixedly provided at the rear end of the movable part 433. The first driven part 434 extends downward from the rear end of the movable part 433.

[0235] The grounding conductive element 44a includes a fourth main body 441, a first electrical contact 442, and a second electrical contact 443. In this embodiment, the grounding conductive element 44a is made entirely of a metal sheet, but it can also be made of conductive materials such as conductive resin. The first electrical contact 442 is located at the front end of the fourth main body 441, and the second electrical contact 443 is located at the rear end of the fourth main body 441. The first electrical contact 442 has an upwardly curved portion. When viewed from above, the projection of the movable portion 433 overlaps with that of the fourth main body 441, but the movable portion 433 is located above the fourth main body 441 and is spaced apart from the fourth main body 441 in the vertical direction. The curved portion of the first electrical contact 442 overlaps with the movable portion 433 in the vertical direction, so that the movable portion 433 can contact the curved portion of the first electrical contact 442 when it moves. A fourth positioning hole is provided on the fourth main body 441, and a fourth positioning post 444 is also provided on the box body 10. The fourth positioning post 444 protrudes upward and is inserted into the fourth positioning hole, thereby positioning the grounding conductive element 44a and preventing the grounding conductive element 44a from falling off the box body 10 and shaking. The first electrical contact part 442 is used for electrical contact with the movable part 433, and the second electrical contact part 443 is used for electrical contact with the grounding element in the image forming apparatus. In one embodiment, the first conductive element 41a, the second conductive element 42a, the intermediate conductive element 43a, and the grounding conductive element 44a can be integrally formed or partially integrally formed.

[0236] The developing cartridge 1 in this embodiment also includes a control assembly for controlling the movement of the movable part 433 between a contact position and a separation position. The control assembly includes a first rotating member 51a, which is a toothed gear. The first rotating member 51a meshes with a drive gear 212, thereby receiving power from the drive part 21a and rotating. The rotation axis of the first rotating member 51a extends in a first direction. The first rotating member 51a is rotatably located at a first end 11 and supported by a first support shaft protruding to the right in the first direction. The first rotating member 51a is provided with a first control protrusion 511a and a second control protrusion 512a, which protrude to the left end face of the first rotating member 51a in the first direction. This embodiment does not limit the number of control protrusions on the first rotating member 51a. The first control protrusion 511a is provided with a first contact surface, and the second control protrusion 512a is provided with a second contact surface. The first contact surface and the second contact surface are used to contact the first driven part 434 and push the first driven part 434, so that the first driven part 434 drives the movable part 433 to move. The first contact surface and the second contact surface are arc surfaces (arc surfaces include inclined surfaces). By setting the arc surfaces, the contact is smoother.

[0237] The developing cartridge 1 in this embodiment further includes an identification component, which includes a first chip 32. The first chip 32 includes a storage medium and an electrical contact surface 33. The storage medium is electrically connected to the electrical contact surface 33. The storage medium and the electrical contact surface 33 can be separate components or integrally formed. The electrical contact surface 33 is used to contact and connect with electrical contact terminals in the image forming apparatus, so that the image forming apparatus can read the information stored in the storage medium (such as the model, lifespan, capacity, etc. of the developing cartridge) through the electrical contact surface 33. The electrical contact surface 33 is located at the first end 11, and the third direction is the electrical contact surface. In this embodiment, the storage medium and the electrical contact surface 33 are jointly and fixedly disposed on the substrate. The substrate is supported and fixed on the chip holder 31. The chip holder 31 is fixedly disposed at the first end 11. Preferably, the chip holder 31 and the first cover 111 are integrally formed. The electrical contact surface 33 is a copper sheet or conductive metal sheet fixedly disposed on the substrate. In other embodiments, the storage medium and the substrate can also be disposed separately from the electrical contact surface 33, such as the storage medium being disposed at the second end 12. The storage medium and the electrical contact surface 33 are electrically connected by conductive components such as wires. In other embodiments, the identification component may not be provided.

[0238] The following is a detailed description of the operation of the control and conductive components:

[0239] When the developing cartridge 1 is installed into the image forming apparatus, the electrical receiving part 411 contacts and is electrically connected to the power supply terminal (powered by the power supply circuit within the image forming apparatus) and the second electrical contact part 443 makes electrical contact with the grounding member within the image forming apparatus. In the initial state, the moving part 433 is in the separated position, that is, there is no electrical connection between the intermediate conductive member 43a and the ground conductive member 44a.

[0240] When the image forming apparatus is started, the drive unit 21a rotates, driving the first rotating member 51a to rotate, causing the first rotating member 51a to move from a position engaged with the drive gear to a position disengaged from the drive gear. At the same time, the normal potential provided by the power supply terminal can be guided to the developing roller shaft 1311 through the first conductive member 41a, so that the developing roller shaft 1311 has the same potential as the power supply terminal, thereby creating a potential difference between the developing roller 131 and the developer in the cartridge 10, which allows the developer to be adsorbed.

[0241] As the first rotating member 51a rotates, during the process of the first rotating member 51a moving from the position of meshing with the drive gear to the position of disengaging from the drive gear, the duration from the start of the rotation of the first rotating member 51a to the contact between the first control protrusion 511a and the first driven part 434 is T1. During this process, the moving part 433 is in the disengaged position, so the potential is at a normal potential during this process.

[0242] During the process of the first rotating member 51a moving from the position of meshing with the drive gear to the position of disengaging from the drive gear, the first control protrusion 511a contacts the first driven part 434. The first driven part 434 is pushed and drives the moving part 433 to move from the separation position to the contact position, thereby making the intermediate conductive member 43a electrically connected to the ground conductive member 44a. Since the ground conductive member 44a is electrically connected to the grounding member in the image forming apparatus, the potentials of the power supply terminal, the first conductive member 41a, the second conductive member 42a, the intermediate conductive member 43a, and the ground conductive member 44a all drop to the ground potential and remain there for a duration of T2. As a result, the detection device (electrically in contact with the power supply terminal) in the image forming apparatus detects a change in potential.

[0243] Then, as the first rotating member 51a rotates, the first control protrusion 511a disengages from the first driven part 434. At this time, under the elastic action of the movable part 433 itself, the movable part 433 moves from the contact position to the separation position, thereby causing the potential to return to the potential provided by the power supply circuit and lasting for a duration of T3.

[0244] Then, as the first rotating member 51a rotates, the second control protrusion 512a contacts the first driven part 434 and causes the moving part 433 to move from the separation position to the contact position again, thereby causing the potential to drop to ground potential again and continue to be T4.

[0245] Then, as the first rotating member 51a rotates, the second control protrusion 512a disengages from the first driven part 434, and the movable part 433 moves from the contact position to the separation position under the elastic action and remains in the separation position without moving.

[0246] In this embodiment, the first rotating member 51a can be regarded as the detected member. The detected member receives the power transmitted by the driving part 21a and moves. The first control protrusion 511a and the second control protrusion 512a can be regarded as the detected protrusions. The detected protrusions follow the movement of the detected member and control the change of potential. The control component can be regarded as the detected component.

[0247] Finally, the first rotating component 51a moves to a position where it disengages from the drive gear and stops rotating, thus completing the detection process.

[0248] The detection device within the image forming apparatus can determine information about the developing cartridge 1 (such as its age, model, and capacity) by measuring the number of times the potential drops to ground, the duration of each drop to ground, and the duration of the period between two ground drops when the potential is at a normal level.

[0249] For example, in this embodiment, if the developing cartridge 1 is an old developing cartridge 1 that has been used, then the first rotating member 51a is initially in a state of disengagement from the drive gear, so the moving part 433 will not move and the potential will not change.

[0250] Furthermore, if the second control protrusion 512a is not provided in this embodiment, the potential drops to ground potential only once, and the image forming apparatus can determine that this developing cartridge 1 is a new developing cartridge 1 and can print 3000 sheets of paper. If the potential drops to ground potential twice, it can be determined that this developing cartridge 1 is a new developing cartridge 1 and can print 6000 sheets of paper. Similarly, those skilled in the art can increase the number of control protrusions.

[0251] Those skilled in the art can also adjust the duration of T1 by adjusting the distance between the first control protrusion 511a and the missing tooth portion on the first rotating member 51a along the circumference in the direction of rotation. For example, if the distance between the missing tooth portion and the first control protrusion 511a is longer, T1 will increase, and vice versa.

[0252] Those skilled in the art can also adjust the duration of T2 by adjusting the size of the first control protrusion 511a in the circumferential direction; increasing the size increases T2, and vice versa.

[0253] T3 can be adjusted by adjusting the circumferential distance between the first control protrusion 511a and the second control protrusion 512a. Increasing the distance increases T3, and vice versa.

[0254] T4 can be adjusted by adjusting the size of the second control protrusion 512a in the circumferential direction. Increasing the size will increase T4, and vice versa.

[0255] This implementation yields the following numerical ranges for T1, T2, T3, and T4, within which the developing cartridge 1 will not report an error after being installed in the image forming apparatus: 200ms≤T1≤2000ms, 80ms≤T2≤1200ms, 300ms≤T3≤600ms, 80ms≤T4≤500ms.

[0256] Example 14:

[0257] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment thirteen.

[0258] As shown in Figure 53, the difference between this embodiment and Embodiment Thirteen is:

[0259] The second conductive element is the developing roller shaft 1311. The developing roller shaft 1311 receives the potential transmitted by the first conductive element 41a and transmits the potential to the first end 11. The first bracket 42b is fixedly installed on the first end 11. The first bracket 42b is used to rotatably support the right end of the developing roller shaft 131. The first bracket 42b is made of conductive resin. The first bracket 42b serves as a transition conductive element to receive the potential transmitted by the developing roller 1311. In one embodiment, the second conductive element can also be a powder feeding roller shaft or a single conductive element.

[0260] The intermediate conductive member 43a has a third conductive part 432 that contacts and is electrically connected to the first bracket 42b. The third main body part 431 is fixed to the first end 11. The movable part 433 is fixedly connected to the upper end of the third main body part 431. The movable part 433 is tilted forward relative to the third main body part 431. The first driven part 434 is disposed at the front end of the movable part 433 and has an angle with the movable part 433. The first driven part 434 is tilted downward relative to the movable part 433.

[0261] The first electrical contact 442 of the grounding conductive member 44a is located on the upper side of the movable part 433.

[0262] In this embodiment, the first included angle when the movable part 433 is in the separated position is smaller than the second included angle when it is in the contact position.

[0263] In this embodiment, during the process of the first rotating member 51a rotating from the position of meshing with the drive gear to the position of disengaging from the drive gear, the first control protrusion 511a and the second control protrusion 512a can contact the first driven part 434 and push the movable part 433 to swing upward and move from the separation position to the contact position.

[0264] In one embodiment, the first rotating member is provided with a first magnetic element (first control protrusion) and a second magnetic element (second control protrusion). A third magnetic element is fixedly mounted on a movable part, which is located below the first electrical contact of the grounding conductive member and is spaced apart in the vertical direction. The vertical distance between the movable part and the rotation axis of the first rotating member is greater than the radius of the circle formed by the paths traversed by the first and second magnetic elements as the first rotating member rotates. The movable part and the third magnetic element are located above the rotation axis of the first rotating member.

[0265] During the rotation of the first rotating component, when the first magnetic component and the second magnetic component pass through the highest point of their motion trajectory, they respectively generate a repulsive force on the third magnetic component, causing the third magnetic component to drive the movable part to move upward, thereby making the movable part contact and electrically connect with the first electrical contact part.

[0266] Example 15:

[0267] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment thirteen.

[0268] As shown in Figure 54, the difference between this embodiment and Embodiment Thirteen is:

[0269] The developing cartridge 1 also includes a swing member 45a, which is located in front of the grounding conductive member 44a. The cartridge body 10 is provided with a swing shaft extending in the vertical direction. The swing member 45a is mounted on the swing shaft and can swing around it. The swing member 45a is provided with a second driven part 451 and a second driving part 452. The second driven part 451 is located at the right end of the swing member 45a and extends downward. The second driving part 452 is located at the left end of the swing member 45a and extends upward. The left end face of the intermediate conductive member 43a abuts against the second driving part 452. The upper end of the swing member 45a is also provided with an upwardly protruding reset protrusion. The reset protrusion is located on the right side of the swing shaft. A reset elastic member is installed between the reset protrusion and the fourth positioning post 444. In this embodiment, the reset elastic member is a tension spring. The swing shaft is located between the second driven part 451 and the second driving part 452.

[0270] During the process of the first rotating member 51a rotating from the position of meshing with the drive gear to the position of disengaging from the drive gear, the second driven part 451 is touched by the first control protrusion 511a and the second control protrusion 512a in sequence, which causes the swing member 45a to swing, and then causes the second driving part 452 to push the movable part 433 from the separation position to the contact position.

[0271] When the first control protrusion 531a and the second control protrusion 532a disengage from the second driven part 451, the swing member 45a swings in the opposite direction under the elastic force of the reset elastic member, thereby no longer pushing the movable part 433. The movable part 433 moves from the contact position to the separation position under its own elastic force.

[0272] Example 16:

[0273] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment fourteen.

[0274] As shown in Figures 55 to 57, the difference between this embodiment and Embodiment Fourteen is as follows:

[0275] This embodiment includes a transmission gear 58a, which includes a first transmission gear 581a and a second transmission gear 582a coaxially arranged. The radius of the second transmission gear 582a is smaller than that of the first transmission gear 581a, and the second transmission gear 582a is integrally formed on the left end face of the first transmission gear 581a.

[0276] A support plate protruding to the right is fixedly installed on the first end 11. The support plate extends in the front-back direction and protrudes to the right from the first end 11.

[0277] The control component further includes a translational member 53a, which is mounted on the support plate and can slide on the support plate in the front-back direction. The translational member 53a is provided with a first control protrusion 531a, a second control protrusion 532a, and a plurality of teeth 533a. The plurality of teeth 533a are arranged in the direction of movement of the translational member 53a (i.e., arranged in the front-back direction), and the plurality of teeth 533a mesh with the second transmission gear 582a. That is, in this embodiment, the translational member 53a is a rack. The first control protrusion 531a and the second control protrusion 532a are located to the left of the plurality of teeth 533a and are arranged at intervals in the direction of movement of the translational member 53a (i.e., arranged in the front-back direction). The first control protrusion 531a is located in front of the second control protrusion 532a. The first control protrusion 531a is provided with a first contact surface 5311, and the second control protrusion 532a is provided with a second contact surface 5321. The first contact surface 5311 and the second contact surface 5321 are inclined relative to the front-back direction, and the front end of the first contact surface 5311 and the second contact surface 5321 is lower than the rear end in the vertical direction.

[0278] In this embodiment, a second guide portion 421 is provided on the left end face of the first bracket 42b. The second guide portion 421 protrudes to the left from the left end face of the first bracket 42b. A second guide hole is formed on the second guide portion 421 in the vertical direction, and the second guide hole penetrates the second guide portion 421. A second protrusion 422 is also integrally formed on the left end face of the first bracket 42b. A second positioning portion 423 extending from top to bottom is integrally formed on the second protrusion 422. The second positioning portion 423 and the first bracket 42b are spaced apart in the horizontal direction. The second positioning portion 423 and the second protrusion 422 are both located above the second guide portion 421.

[0279] In this embodiment, the intermediate conductive element 43a includes a third elastic element 433a and a third sliding element 431. The third sliding element 431 is installed in the second guide hole of the second guide part 421 and can slide along the second guide hole in the vertical direction. The lower end and the upper end of the third sliding element 431 extend downward and upward from the second guide hole, respectively. The upper end of the third sliding element 431 is fixedly connected to the lower end of the third elastic element 433a. In this embodiment, the third elastic element 433a is a compression spring. The third positioning part is inserted into the third elastic element 433a, and the upper end of the third elastic element 433a abuts against the third protrusion, thereby positioning the third elastic element 433a and preventing it from falling off. The lower end of the third sliding element 431 is a movable part 432a, which extends to the right from the lower end of the third sliding element 431. When projected in the front-back direction, the movable part 432a overlaps with the projections of the first control protrusion 531a and the second control protrusion 532a. The third sliding member 431 is electrically connected to the first bracket 42b through the third elastic member 433a, and is also electrically connected to the first bracket 42b through contact with the second guide hole.

[0280] In this embodiment, the grounding conductive member 44a further includes a fourth extension, which extends downward from the front end of the fourth main body 441. A first electrical contact 442 of the grounding conductive member 44a is disposed at the lower end of the fourth extension, and extends forward from the lower end of the fourth extension. The first electrical contact 442 is located above the movable part 432a. When the movable part 432a is in the separated position, the movable part 432a and the first electrical contact 442 are spaced apart in the vertical direction. When the movable part 432a is in the contact position, the movable part 432a and the first electrical contact surface 33 are not spaced apart in the vertical direction.

[0281] When the first transmission gear 581a drives the second transmission gear 582a to rotate, the second transmission gear 582a transmits power to the translation member 53a through multiple teeth 533a, causing the translation member 53a to move to the left, thereby causing the first control protrusion 531a and the second control protrusion 532a to contact the movable part 432a in sequence.

[0282] The duration from the start of movement of the translation member 53a to the contact between the first control protrusion 531a and the moving part 432a is T1.

[0283] As the translation member 53a moves, the first control protrusion 531a comes into contact with the movable part 432a for a duration of T2. When the first control protrusion 531a comes into contact with the movable part 432a, the first contact surface 5311 is inclined relative to the front-back direction, which causes the first contact surface 5311 to exert an upward force on the movable part 432a. This causes the movable part 432a to drive the third sliding part to slide upward and compress the third elastic member 433a, thereby moving the movable part 432a from the separation position to the contact position. The movable part 432a then forms an electrical connection with the grounding conductive member 44a.

[0284] As the translational member 53a moves, the entire process from the moment the first control protrusion 531a disengages from the movable part 432a until the second control protrusion 532a contacts the movable part 432a lasts for a duration of T3. During this process, the movable part 432a moves from the contact position to the separation position together with the third sliding member 431 under the elastic force of the third elastic member 433a.

[0285] Then the second control protrusion 532a contacts the movable part 432a for a duration of T4, causing the movable part 432a to move from the separation position to the contact position again.

[0286] As the translation member 53a continues to move forward, the second control protrusion 532a disengages from the movable part 432a, and the movable part 432a moves from the contact position back to the separation position.

[0287] Finally, as the translation member 53a moves, all the teeth 533a disengage from the second transmission gear 582a, causing the translation member 53a to stop moving, the detection process of the image forming apparatus stops, and the developing cartridge 1 successfully passes the detection.

[0288] In this embodiment, the translation member 53a is the detected member, and the translation member 53a has a first control protrusion 531a that can be regarded as the first detected protrusion and a second control protrusion 532a that can be regarded as the second detected protrusion.

[0289] In one embodiment, the translational member 53a meshes with the second transmission gear 582a and moves in the vertical direction. Multiple teeth 533a are arranged in the vertical direction, and the first control protrusion 531a and the second control protrusion 532a are also spaced apart in the vertical direction. The intermediate conductive member 43a is fixed to the second conductive member 42a by adhesive. The intermediate conductive member 43a includes an adhesive portion and a movable portion 433. The adhesive portion is fixed to the second conductive member 42a by adhesive and is electrically connected to the second conductive member 42a. The movable portion 433 has an angle with the adhesive portion, and the extension direction of the movable portion 433 intersects the vertical direction. The first angle when the movable portion 433 is in the contact position is greater than the second angle when the movable portion 433 is in the separated position. The front end of the grounding conductive member 44a is the first electrical contact portion 442, and the projections of the first electrical contact portion 442 and the movable portion 433 overlap in the left-right direction.

[0290] The translational member 53a receives power and moves upward along the sliding groove, thereby causing the first control protrusion 531a and the second control protrusion 532a to come into contact with the movable part 433 in turn, thereby causing the movable part 433 to move from the separated position to the contact position where it contacts the grounding conductive member 44a.

[0291] Alternatively, the movable part is disposed on the grounding conductive member 44a. When the translational member 53a slides in the vertical direction, the first control protrusion 531a and the second control protrusion 532a abut against the grounding conductive member 44a, causing the grounding conductive member 44a to swing. Its swing axis extends in the vertical, horizontal, or front-back direction. The grounding conductive member 44a swings and may or may not be electrically connected to the intermediate conductive member 43a. The grounding conductive member 44a is connected to a reset elastic member to cause the grounding conductive member 44a to swing in the opposite direction.

[0292] As shown in Figure 58, in another embodiment, the rear end of the first bracket 42b is provided with a rearwardly protruding swing shaft 424. The intermediate conductive member 43a has a through hole for the swing shaft 424 to be inserted. The intermediate conductive member 43a is supported by the swing shaft 424 and swings around it. The lower end of the intermediate conductive member 43a is the driven part 431a, and the upper end is the movable part 433a. The swing shaft 424 is located between the driven part 431a and the movable part 433a in the vertical direction. A reset elastic member, which is a compression spring, is installed between the intermediate conductive member 43a and the first end 11.

[0293] The intermediate conductive member 43a can swing around the swing axis 424 between the separation position where the movable part 433a is separated from the first electrical contact part 442 and the contact position where the movable part 433a is in contact with the first electrical contact part 442.

[0294] The first control protrusion 531a and the second control protrusion 532a are located at the left end of the translation member 53a and protrude to the left. When the translation member 53a moves from back to front, the first control protrusion 531a and the second control protrusion 532a successively touch the driven part 431a, and the intermediate conductive member 43a swings so that the movable part 433a contacts the first electrical contact part 442. When the first control protrusion 531a and the second control protrusion 532a disengage from the driven part 431a, the intermediate conductive member 43a swings in the opposite direction under the elastic force of the reset elastic member, so that the movable part 433a disengages from the first electrical contact part 442.

[0295] Example 17:

[0296] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment Sixteen.

[0297] As shown in Figures 59 and 60, the difference between this embodiment and Embodiment Sixteen is as follows:

[0298] The second transmission gear 582a is a bevel gear.

[0299] The transmission gear also includes a third transmission gear 583a and a fourth transmission gear 584a arranged coaxially. The third transmission gear 583a is a bevel gear and meshes with the second transmission gear 582a. The rotation axis of the third transmission gear 583a extends in the vertical direction. A support seat 113 protruding to the right is fixedly provided on the first end 11. A third support shaft extending upward is provided on the support seat 113. The third transmission gear 583a is coaxially sleeved on the third support shaft and can rotate around the third support shaft.

[0300] The fourth transmission gear 584a is coaxially fixed at the upper end of the third transmission gear 583a and is a spur gear.

[0301] The first cover 111 is provided with a limiting hole 1111 for supporting and limiting the translation member 53a. The translation member 53a can be slidably installed in the limiting hole 1111 relative to the limiting hole 1111.

[0302] The translational member 53a extends in the left-right direction, the first control protrusion 531a and the second control protrusion 532a are spaced apart in the left-right direction, and multiple teeth 533a mesh with the fourth transmission gear 584a.

[0303] In this embodiment, no intermediate conductive member 43a is provided. The upper end of the first bracket 42b is provided with an upwardly protruding second protrusion 422. The first electrical contact 442 of the grounding conductive member 44a is set as a movable part 433, that is, the first electrical contact 442 can move relative to the grounding conductive member 44a. The movable part 433 extends upward from the front end of the first conductive member 41a and then extends to the right to form a bend. The movable part 433 overlaps with the projection of the first control protrusion 531a and the second control protrusion 532a in the left-right direction, and the movable part 433 overlaps with the projection of the second protrusion 422 in the front-back direction.

[0304] When the first transmission gear 581a rotates, the power is transmitted through the second transmission gear 582a and the third transmission gear 583a to finally cause the fourth transmission gear 584a to rotate. The fourth transmission gear 584a then drives the translation member 53a to move from right to left, causing the first control protrusion 531a and the second control protrusion 532a to contact the movable part 433 in turn, thereby causing the movable part 433 to move from the separation position to the contact position twice.

[0305] Example 18:

[0306] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment thirteen.

[0307] As shown in Figure 61, the difference between this embodiment and Embodiment Thirteen is:

[0308] The first end 11 is provided with a pivot shaft 114 protruding upward in the vertical direction. A grounding conductive member 44a is sleeved on the pivot shaft 114 and can swing around it. The grounding conductive member 44a includes a pivot portion 441a, a driven portion 442a, and a movable portion 443a. The pivot portion 441a has a pivot hole for the pivot shaft 114 to be inserted, thereby allowing the grounding conductive member 44a to swing around the pivot shaft 114. The driven portion 442a is connected to the lower end of the pivot portion 441a and extends downward. The movable portion 443a extends to the right from the pivot portion 441a. The pivot portion 441a contacts and is electrically connected to the third electrical contact portion 437. In this embodiment, the movable portion 443a is used to contact and be electrically connected to a grounding member within the image forming apparatus. A reset elastic element 115 is also installed between the movable part 443a and the box body 10. The reset elastic element 115 is a tension spring, which is located between the movable part 443a and the box body 10.

[0309] The first control protrusion 511a has an inclined first contact surface 5111, which intersects with the front-back direction and the left-right direction. The first contact surface 5111 is positioned further upstream than downstream of the first end 11 in the rotation direction of the first rotating member 51a (the detected member). The first contact surface 5111 is used to contact the driven part 442a. The second control protrusion has the same structure as the first control protrusion 511a.

[0310] When the first rotating member 51a receives power and rotates, the first contact surface 5111 contacts the driven part 442a, thereby causing the driven part 442a to drive the entire grounding conductive member 44a to overcome the elastic force of the reset elastic member 115 and swing around the pivot axis 114, thereby causing the movable part 443a to move from a separated position that is not in contact with the grounding member to a contact position that is in contact with the grounding member.

[0311] When the first contact surface 5111 disengages from the driven part 442a, the grounding conductive part 44a swings in the opposite direction under the elastic force of the reset elastic member 115, thereby causing the movable part 443a to move from the contact position to the separation position.

[0312] The function of the second control protrusion 512a is the same as that of the first control protrusion 511a, and will not be described again.

[0313] Example 19:

[0314] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment Sixteen.

[0315] As shown in Figure 62, the difference between this embodiment and Embodiment Sixteen is:

[0316] In this embodiment, there is only one transmission gear. The left end of the first transmission gear 581a is provided with a threaded part 5811a, and a threaded groove is provided on the outer peripheral surface of the threaded part 5811a.

[0317] The first end 11 is provided with a first guide rail 116 extending in the left-right direction. A translational member 53a is slidably mounted on the first guide rail 116. The upper end of the translational member 53a is provided with a first control protrusion 531a and a second control protrusion 532a arranged at intervals in the left-right direction. The first control protrusion 531a and the second control protrusion 532a are respectively provided with a first contact surface and a second contact surface that are inclined surfaces. The first contact surface and the second contact surface intersect the left-right direction and the up-down direction. The left end of the translational member 53a is provided with an insertion protrusion 534a1 that protrudes to the left and inserts into a threaded groove. The translational member 53a is regarded as a test piece with a test protrusion.

[0318] When the first transmission gear 581a drives the threaded portion 5811a to rotate, the threaded groove engages with the insertion protrusion 534a1, causing the translational member 53a to slide to the left and drive the first control protrusion 531a and the second control protrusion 532a to move to the left. This causes the first contact surface and the second contact surface to sequentially contact the driven portion 442a, causing the grounding conductive member 44a to swing, thereby moving the movable portion 443a from the separation position to the contact position. When the first contact surface disengages from the driven portion 442a, the grounding conductive member 44a swings in the opposite direction under the action of the reset elastic member 115, causing the movable portion 443a to move from the contact position to the separation position.

[0319] Example 20:

[0320] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment fourteen.

[0321] As shown in Figure 63, the difference between this embodiment and Embodiment Fourteen is:

[0322] In this embodiment, the intermediate conductive component 43a is a conductive elastic component, specifically a tension spring. The front end of the intermediate conductive component 43a is fixedly connected to and electrically connected to the first bracket 42b, and the rear end is fixedly connected to and electrically connected to the first electrical contact part of the grounding conductive component 44b. The fixed connection can be achieved by snap-fitting or welding.

[0323] The first end 11 is provided with a first track, and the grounding conductive member 44b can move relative to the housing 10 in the front-back direction along the first track. The grounding conductive member 44b includes a first electrical contact, a fourth main body, and a movable part 443b. The front end of the fourth main body is the first electrical contact. The movable part 443b is fixedly provided at the rear end of the fourth main body and extends rearward. The movable part 443b can move between a contact position that is in contact with and electrically connected to the grounding member in the image forming apparatus and a separation position that is not in contact with and not electrically connected to the grounding member in the image forming apparatus. The lower end of the fourth main body is also provided with a driven part 442b, which extends downward from the fourth main body.

[0324] In this embodiment, the transmission assembly also includes a first idler wheel, which includes a large-diameter gear part and a small-diameter gear part that are coaxially integrally formed. The large-diameter gear part meshes with the drive gear, and the small-diameter gear part meshes with the first rotating member 51a, thereby adjusting the axial position and transmission ratio of the first rotating member 51a.

[0325] When the first rotating member 51a receives power and rotates, the first control protrusion 511a and the second control protrusion 512a sequentially contact the driven part 442b, causing the grounding conductive member 44a to move backward and stretch the intermediate conductive member 43a, thus moving the movable part 443b from the separation position to the contact position. When the first control protrusion 511a disengages from the driven part 442b, the grounding conductive member 44a moves forward under the elastic force of the intermediate conductive member 43a, thus moving the movable part 443b from the contact position to the separation position. The operation of the second control protrusion 512a is the same as that of the first control protrusion 511a, and will not be described again. In some embodiments, the grounding conductive member 44a can also move or swing upward in a second direction or a third direction.

[0326] Example 21:

[0327] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment Seventeen.

[0328] As shown in Figures 64-65, the difference between this embodiment and Embodiment Seventeen is as follows:

[0329] The first rotating component 55a is a spur gear and meshes with the fourth transmission gear 584a. A second rotating shaft 118 is provided at the first end 11. The first rotating component 55a is rotatably mounted on the second rotating shaft 118. The axis of rotation of the first rotating component 55a extends vertically. A first control protrusion 551 and a second control protrusion 552 are provided on the upper end surface of the first rotating component 55a. The first control protrusion 551 and the second control protrusion 552 are arranged along the circumference of the first rotating component 55a. A toothed portion is provided on the circumferential surface of the first rotating component 55a. That is, in this embodiment, the first rotating component 55a serves as a detection component with the detection protrusion.

[0330] A cover 151a is also installed on the upper end of the housing 10, covering the third transmission gear 583a, the fourth transmission gear 584a, and the first rotating member 55a. An observation port 1511 is provided on the cover 151a, through which the first rotating member 55a is exposed in the vertical direction, allowing it to be observed from the outside. A fifth positioning post 1512 is fixedly installed on the rear wall of the observation port 1511, protruding forward.

[0331] The intermediate conductive element 43a and the grounding conductive element 44a are both formed by bending steel wires into torsion spring shapes. The front end of the third conductive part 432 is in contact with and electrically connected to the powder discharge knife. The third main body part 431 is fitted onto the fifth positioning post 1512. The cover 151a is also provided with a movable opening 1513, which penetrates the cover 151a in the vertical direction. The right end of the movable opening 1513 is provided with a first abutting part. The movable part 433 is located inside the movable opening 1513. The movable part 433 includes a driven part 434b. In the vertical direction, the driven part 434b overlaps with the movement trajectory of the first control protrusion 551 and the second control protrusion 552. The movable part 433 abuts against the upper surface of the first abutting part.

[0332] A sixth positioning post 116a is fixedly provided at the first end 11, protruding to the right. The first electrical contact 44 of the grounding conductive member 44a abuts against the upper surface of the cover 151a. The first electrical contact 442 is located below the movable part 433. Under the action of elasticity, the movable part 433 abuts downward against the first electrical contact 442. When the movable part 433 is in the contact position, the first electrical contact 442 is in contact with and electrically connected to the movable part 433. When the movable part 433 is in the separated position, the first electrical contact 442 is not in contact with and not electrically connected to the movable part 433. The fourth main body 441 is sleeved on the sixth positioning post 116a, thereby supporting the grounding conductive member 44a by the sixth positioning post 116a. The second electrical contact 443 extends rearward from the fourth main body 441. The rear end of the first cover 111 is fixedly provided with a second abutting part 1113. The second electrical contact 443 abuts against the upper surface of the second abutting part 1113. A limiting part 1114 is also fixedly provided on the second abutting part 1113. The limiting part 1114 and the second abutting part 1113 together form a limiting groove with openings at the left end, front end and rear end, so that when the second electrical contact 443 is inserted into the limiting groove, it is limited in the vertical direction and the right direction, preventing the second electrical contact 443 from being misaligned.

[0333] When the drive unit 21a rotates, power is transmitted to the first rotating member 55a through the drive unit 21a, the first transmission gear 581a, the second transmission gear 582a, the third transmission gear 583a, and the fourth transmission gear 584a, causing the first rotating member to rotate.

[0334] During the rotation of the first rotating member 55a, the first control protrusion 551 and the second control protrusion 552 sequentially contact the driven part 434b, causing the driven part 434b to be pushed upward by the first control protrusion 551 and the second control protrusion 552 in sequence. This causes the movable part 433 to swing upward twice from the contact position to the separation position. When the driven part 434b disengages from the first control protrusion 551 and the second control protrusion 552, the movable part 433 swings downward under the action of elasticity and moves from the separation position to the contact position.

[0335] Example 22:

[0336] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment twenty-one.

[0337] As shown in Figures 66 to 68, the difference between this embodiment and embodiment twenty-one is that the identification component includes a first chip 32, which includes a storage medium and electrical contact surfaces. The number of electrical contact surfaces is four; in other embodiments, the number of electrical contact surfaces can also be different. The electrical contact surfaces are arranged in a first direction, from right to left: first electrical contact surface 331, grounding electrical contact surface 332, third electrical contact surface 333, and fourth electrical contact surface 334. When the developing cartridge 1 is installed in the image forming apparatus, the electrical contact surfaces contact and are electrically connected to the identification terminal in the image forming apparatus. The identification terminal also has four electrical contacts, arranged in a first direction, from right to left: first electrical contact, second electrical contact, third electrical contact, and fourth electrical contact. The first, second, third, and fourth electrical contacts correspond one-to-one with the first electrical contact surface 331, grounding electrical contact surface 332, third electrical contact surface 333, and fourth electrical contact surface 334, respectively. The second electrical contact is electrically connected to the grounding component.

[0338] The intermediate conductive component 43a is fixedly installed at the first end 11, and the front end of the intermediate conductive component 43a is in contact with and electrically connected to the powder discharge knife.

[0339] The first electrical contact 442 is a movable end located at the front end of the grounding conductive member 44a. The driven part 444b is located between the first electrical contact 442 and the fourth main body 441 in the front-rear direction. The driven part 444b is an upwardly protruding protrusion. Both the first electrical contact 442 and the driven part 444b are located below the first rotating member 55a. The first control protrusion 551 and the second control protrusion 552 are disposed on the lower surface of the first rotating member 55a. Under the action of the force applied by the first control protrusion 551 and the second control protrusion 552 and the elastic force of the grounding conductive member 44a itself, the driven part 444b causes the first electrical contact 442 to move between a contact position that is in contact with and electrically connected to the intermediate conductive member 43a and a separation position that is not in contact with and not electrically connected to the intermediate conductive member 43a. In this embodiment, the second electrical contact 443 does not directly contact the grounding member.

[0340] A chip holder 34 is fixedly mounted on the substrate. The chip holder 34 is fixed to the substrate by welding or bonding and is electrically connected to the grounding contact surface 332. The chip holder 34 is also in contact with and electrically connected to the chip support 31. In this embodiment, both the chip support 31 and the first cover 111 are made of conductive materials such as conductive resin or metal. The chip support 31 is fixedly mounted on the right end of the first cover 111 and is electrically connected to the first cover 111. The chip holder 34 can be regarded as a grounding conductive component.

[0341] An extension 1116 is provided at the left end of the first cover 111. The extension 1116 extends to the left from the left end of the first cover 111 and abuts against and is electrically connected to the second electrical contact 443. The first control protrusion 551 and the second control protrusion 552 move together with the fourth transmission gear 584a. When the first control protrusion 551 contacts the driven part 444b, it presses the driven part 444b downward, causing the driven part 444b to drive the first electrical contact 442 to undergo elastic deformation and move downward from the separation position to the contact position. As the first control protrusion 551 moves, when the first control protrusion 551 disengages from the driven part 444b, under the elastic action of the grounding conductive member 44a, the first electrical contact 442 moves upward from the contact position to the separation position. The working process of the second control protrusion 552 is the same as that of the first control protrusion 552, and will not be described again.

[0342] Compared to other embodiments, in this embodiment, the grounding contact surface 332 is electrically connected to the grounding component, eliminating the need for a conductive component extending outward from the developing cartridge 1 to contact the grounding component. This greatly reduces the risk of the conductive component used for grounding being deformed by collision during transportation.

[0343] Example 23:

[0344] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment thirteen.

[0345] As shown in Figures 69 and 70, the difference between this embodiment and Embodiment Thirteen is as follows:

[0346] The identification component includes a first chip 32, which includes a storage medium and a control module.

[0347] In this embodiment, the second conductive element 42c is a wire. The wire extends from the second end 12 to the first end 11 along the first direction. The left end of the wire is fixedly connected to and electrically connected to the electrical receiving part, and the right end of the wire is fixedly connected to the chip 32 and electrically connected to the control module. The control module is also electrically connected to the grounding electrical contact surface 332. The control module is used to control whether the second conductive element 42c and the grounding electrical contact surface 332 are electrically connected. That is, in this embodiment, the control module can be regarded as the detected element.

[0348] In this embodiment, there is no need to set up any gears other than the drive unit 21a, the developing gear 22 and the powder feeding gear 23, nor is there a need to set up the intermediate conductive part 43a and the grounding conductive part 44a, thereby reducing the number of parts, reducing costs and simplifying the structure.

[0349] When the developing cartridge 1 in this embodiment is installed in the image forming apparatus, the first electrical contact, the third electrical contact, and the fourth electrical contact supply power to the chip. In other embodiments, one or more of the first electrical contact, the third electrical contact, and the fourth electrical contact can supply power to the chip. When the chip receives the power provided by the image forming apparatus, the image forming apparatus can read the information stored in the storage medium to determine the model, capacity, lifespan, and other information of the developing cartridge 1 and provide it to the user. At the same time, the control module starts working, so that the second conductive element 42c and the grounding electrical contact surface 332 are connected and disconnected in a regular manner. When the developing cartridge 1 is installed in the image forming apparatus and the chip receives the power provided by the image forming apparatus, the second conductive element 42c and the grounding electrical contact surface 332 are first in a disconnected state (i.e., not electrically connected) for a duration of T1. Then, the control module makes the second conductive element 42c and the grounding electrical contact surface 332 enter a conducting state (i.e., electrically connected) for a duration of T2, so that the second conductive element 42c is grounded through the grounding electrical contact surface 332. The control module then disconnects the second conductive element 42c from the grounding contact surface 332 for a duration of T3. The control module then reconnects the second conductive element 42c from the grounding contact surface 332 for a duration of T4. Finally, the control module keeps the second conductive element 42c disconnected from the grounding contact surface 332.

[0350] The control module can be configured to repeat the above process when power is restored after a power outage, so that the user can reuse the image forming device without replacing the chip after removing the developing cartridge 1 from the image forming apparatus.

[0351] Example 24:

[0352] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment twenty-three.

[0353] As shown in Figures 71 and 72, the difference between this embodiment and embodiment twenty-three is as follows:

[0354] The identification component includes a first chip 32 and a second chip 37. The first chip 32 includes a storage medium, and the second chip 37 includes a control module. A first electrical contact surface 331, a grounding electrical contact surface 332, a third electrical contact surface 333, and a fourth electrical contact surface 334 are disposed on the upper surface of the first chip 32. A fifth electrical contact surface 335 is also disposed on the lower surface of the first chip 32, and the fifth electrical contact surface 335 is electrically connected to the grounding electrical contact surface 332.

[0355] The second chip 37 has a sixth electrical contact surface 371 on its upper surface. The second chip 37 is mounted on a chip support 31 and located below the first chip 32. The sixth electrical contact surface 371 contacts and is electrically connected to the fifth electrical contact surface 335. The second chip 37 has a battery 372 for supplying power to the control module and a switch 373. The switch 373 controls the connection and disconnection between the battery 372 and the control module. The switch 373 can move between a closed position (forming a circuit between the battery 372 and the control module) and a closed position (breaking the circuit between the battery 372 and the control module). In this embodiment, the switch 373 is a metal sheet. The second conductive element 42a is electrically connected to the control module of the second chip 37.

[0356] A slide rail 311 is provided on the chip holder 31. A movable member 35 that can slide in a first direction is installed inside the slide rail 311. A reset elastic member 36 is sleeved on the movable member 35. The left end of the reset elastic member 36 abuts against the right end of the slide rail 311, and the right end of the reset elastic member 36 abuts against a limiting protrusion on the movable member 35. An inclined surface is provided on the right end of the movable member 35. A switch protrusion 511b protruding to the right in the first direction is provided on the right end of the first rotating member 51a. The switch protrusion 511b is used to contact the inclined surface on the movable member 35 to apply a rightward force to the movable member 35. In this embodiment, the first rotating member 51a is a toothed gear. That is, in this embodiment, the control module can be regarded as the second detected member, the first rotating member 51a can be regarded as the first detected member, and the switch protrusion 511b can be regarded as the control protrusion.

[0357] When the developing cartridge 1 is installed into the image forming apparatus, the first rotating member 51a receives power and begins to rotate, causing the switch protrusion 511b to contact the moving member 35. This causes the moving member 35 to move to the right and compress the reset elastic member 36. The right end of the moving member 35 then pushes the switch member 373 from the off position to the connected position, causing the battery 372 to start supplying power to the control module of the second chip 37, thereby enabling the control module to start working. The working process of the control module is the same as in Embodiment 23 and will not be described again. Compared with the existing detection structure, this embodiment also has the advantages of simple structure and fewer parts.

[0358] In other embodiments, the second chip 37 may also be fixedly mounted on the second end 12 to achieve the same effect.

[0359] Example 25:

[0360] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment thirteen.

[0361] As shown in Figures 73 to 79, the difference between this embodiment and Embodiment Thirteen is that:

[0362] In this embodiment, the electrical receiving part 411 is fixedly installed on the second end 12 and is made of conductive resin material (or other conductive materials such as metal). The electrical receiving part 411 is used to contact the detection rod in the image forming apparatus and to contact and electrically connect with the power supply terminal in the image forming apparatus. In this embodiment, the first conductive member 41a may not have a developing contact part that contacts the developing roller shaft 1311, that is, it is not electrically connected to the developing roller shaft 1311, and the powder feeding contact part 414 is electrically connected to the powder feeding roller shaft.

[0363] The second conductive element 42a (powder discharge blade) contacts the developing body to transfer potential. In this embodiment, the developing body and the developing roller 1311 may not be electrically connected.

[0364] The intermediate conductive element 43a is a conductive torsion spring, which includes an integrally formed third conductive part 432, a third main body part 431, and a movable part 433. The third main body part 431 is a hollow cylinder formed by winding conductive steel wire. The third conductive part 432 is used to contact and electrically connect with the second conductive element 42a. A rightward protruding abutment is fixedly provided on the first end 11. The third conductive part 432 abuts upward against the abutment, thereby limiting the third conductive part 432 to prevent it from swinging upward and ensuring stable contact between the third conductive part 432 and the second conductive element 42a. The movable part 433 is used to contact and electrically connect with the chip carrier 31.

[0365] The grounding conductive component is the chip support 31. In this embodiment, the chip support 31 is made of conductive resin material (it can also be other conductive materials such as metal, or additional wires can be provided for conduction). The chip support 31 includes an integrally formed chip support portion 311a and a conductive extension portion 312. The chip support portion 311a is located to the right of the conductive extension portion 312, that is, the conductive extension portion 312 extends to the left from the chip support portion 311a. When viewed from the top and bottom, the conductive extension portion 312 at least covers a part of the intermediate conductive component 43a (in this embodiment, the conductive extension portion 312 covers the movable portion 433 of the intermediate conductive component 43a). The chip support portion 311a includes a chip support groove 3111 formed by a downward indentation. A first flange 3112 and a second flange 3113 are respectively provided on the front and rear side walls of the chip support groove 3111. The first flange 3112 protrudes rearward from the front side wall of the chip support groove 3111, and the second flange 3113 protrudes forward from the rear side wall of the chip support groove 3111.

[0366] The first chip 32 includes a storage medium, electrical contact surfaces, a substrate 32b, and electrical contacts. The electrical contact surfaces include a first electrical contact surface 331, a ground electrical contact surface 332, a third electrical contact surface 333, and a fourth electrical contact surface 334. The storage medium, electrical contact surfaces, and chip socket 34 are all fixedly disposed on the substrate 32b, and the storage medium is electrically connected to the electrical contact surfaces. The first electrical contact surface 331, the ground electrical contact surface 332, the third electrical contact surface 333, and the fourth electrical contact surface 334 are arranged at intervals from right to left on the upper surface of the substrate 32b. The electrical contact surfaces contact and are electrically connected to the identification terminals. The ground electrical contact surface 332 is used to contact and be electrically connected to the ground terminal in the identification terminals, thereby enabling the ground electrical contact surface 332 to be grounded.

[0367] The chip socket 34 is electrically connected to the grounding contact surface 332 and is fixedly mounted on the lower surface of the substrate 32b. The chip socket 34 is formed by bending a steel sheet (in other embodiments, it can also be formed by integral injection molding of conductive resin). When the substrate 32b is mounted on the chip support groove 3111, the lower surface of the substrate 32b is supported by the upper surfaces of the first flange 3112 and the second flange 3113. The chip holder 34 is located between the first flange 3112 and the second flange 3113 in the front-rear direction. The front wall and the rear wall of the chip holder 34 are respectively fixedly provided with a first latching part 341 and a second latching part 342. The first latching part 341 is formed by extending forward and upward from the front wall of the chip holder 34, and the second latching part 342 is formed by extending backward and upward from the rear wall of the chip holder 34. The lower ends of the first latching part 341 and the second latching part 342 are connected to the chip holder 34. The upper ends of the first latching part 341 and the second latching part 342 are respectively used to abut against the lower surface of the first flange 3112 and the lower surface of the second flange 3113, thereby restricting the movement of the substrate 32b so that the substrate 32b is positioned, thereby fixing the chip as a whole on the chip support groove 3111 and preventing loosening. In other embodiments, the storage medium, substrate 32b, and chip holder 34 can also be disposed at other locations on the developing cartridge 1. Only an additional wire needs to be provided between the storage medium and the electrical contact surface for electrical connection. Similarly, the chip holder 34 only needs to be provided with an additional wire to connect to the ground electrical contact surface 332.

[0368] The control assembly includes a moving part 57a and a first rotating part 51a (i.e., the part being detected).

[0369] The movable part 57a includes an integrally formed movable pivot part 571, an extension arm 572, a positioning and mating part 574, and a movable guide part 573.

[0370] A cylindrical movable support is fixedly provided on the first end 11. The movable support extends to the right from the first end 11 in the first direction. The movable pivot part 571 of the movable member 57a is cylindrical and is provided with a movable hole 5711 extending in the first direction. The movable hole 5711 is rotatably engaged with the movable support part, so that the movable member 57a can rotate around the movable support part. The axis of rotation of the movable member 57a extends in the first direction.

[0371] The extension arm 572 extends radially rearward from the circumferential surface of the movable pivot 571. The positioning and fitting part 574 is located at the rear end of the extension arm 572, which is the free end of the extension arm 572. The movable guide part 573 extends protruding to the right from the right end of the extension arm 572. The upper surface of the movable guide part 573 is the guide surface 5731, which is an upwardly arched arc shape (in other embodiments, the guide surface 5731 can also be set as an inclined plane, such as an inclined setting from the front lower to the rear upper). The guide surface 5731 is also provided with a retaining surface 5732, which is formed by a downward indentation from the middle of the guide surface 5731.

[0372] The third main body 431 of the intermediate conductive member 43a is fitted onto the movable pivot 571, that is, the movable pivot 571 is inserted into the third main body 431 to support the intermediate conductive member 43a. The third conductive part 432 extends forward from the third main body 431 to the second conductive member 42a to contact and electrically connect with the second conductive member 42a. The movable part 433 extends backward to the rear end of the movable member 57a. The movable part 433 is provided with a bend-formed annular movable positioning part. The positioning fitting part 574 is fixedly provided at the free end of the extension arm 572 and protrudes from left to right. The movable positioning part is fitted onto the positioning fitting part 574, so that the movable part 433 can move with the movement of the movable member 57a. The movable member 57a can move around the movable support, along with the movable member 433, between a contact position and a separation position. When the movable member 57a is in the contact position, the movable member 433 is in contact with and electrically connected to the lower surface of the conductive extension 312. When the movable member 57a is in the separation position, the movable member 433 is not in contact with the conductive extension 312 and the electrical connection is broken. Simultaneously, the intermediate conductive member 43a can provide a restoring force to the movable member 57a. When the movable member 57a moves from the contact position to the separation position, the intermediate conductive member 43a undergoes elastic deformation, thereby enabling the intermediate conductive member 43a to move the movable member 57a from the separation position to the contact position.

[0373] The first rotating member 51a, in addition to the toothed gear 535a, also includes a connecting portion 536 and a plate-shaped portion 537. The connecting portion 536 extends to the left from the left end of the toothed gear 535a, and the plate-shaped portion 537 extends to the left from the left end of the connecting portion 536. The plate-shaped portion 537 is provided with a first control protrusion 511a and a second control protrusion 512a, which protrude to the left from the left end of the plate-shaped portion 537. The first control protrusion 511a and the second control protrusion 512a are symmetrically arranged about the rotation axis of the first rotating member 51a. The first control protrusion 511a and the second control protrusion 512a move with the first rotating member 51a. When the first rotating member 51a moves from the engaged state to the disengaged state, the first control protrusion 511a and the second control protrusion 512a successively contact the guide surface 5731, thereby applying downward pressure to the movable member 57a. This causes the movable member 57a to drive the movable part 433 to move twice from the contact position to the separation position. Furthermore, when the toothed gear 535a finally rotates to the disengaged state, the second control protrusion 512a moves to the retaining surface 5732, causing the outer circumferential surface of the second control protrusion 512a to engage with the concave shape of the retaining surface 5732. This keeps the second control protrusion 512a within the retaining surface 5732, thus keeping the movable member 57a in the separation position. Simultaneously, the elastic force of the intermediate conductive member 43a prevents the first rotating member 51a from continuing to rotate.

[0374] The diameter of the connecting part 536 is smaller than the diameter of the toothed gear 535a, and the diameter of the connecting part 536 is smaller than the distance between the line connecting the first control protrusion 511a and the second control protrusion 512a. A reset protrusion 515a is fixedly provided on the right end face of the toothed gear 535a. The reset protrusion 515a includes a first inclined surface 5151 and a second inclined surface 5152. The first inclined surface 5151 is located in front of the second inclined surface 5152. The right end of the first inclined surface 5151 intersects with the right end of the second inclined surface 5152 to form the tip of the reset protrusion 515a.

[0375] The first cover 111 is provided with an observation port through which at least a portion of the first rotating member 51a can be observed. The first cover 111 is also provided with an elastic arm extending from front to back. Preferably, the front end of the elastic arm is integrally formed with the first cover 111, and the rear end of the elastic arm is a free end. A reset engagement protrusion 1117 is provided at the rear end of the elastic arm, protruding from right to left. The reset engagement protrusion 1117 includes a third inclined surface 11171 and a fourth inclined surface 11172. The third inclined surface 11171 is located in front of the fourth inclined surface 11172. The left ends of the third inclined surface 11171 and the fourth inclined surface 11172 intersect to form the tip of the reset engagement protrusion 1117. A first direction intersects with the first inclined surface 5151, the second inclined surface 5152, the third inclined surface 11171, and the fourth inclined surface 11172. When the first rotating member 51a rotates to the disengaged state, the second inclined surface 5152 of the reset protrusion 515a abuts against the third inclined surface 11171. This means that if the first rotating member 51a wants to continue rotating, it must squeeze the reset engagement protrusion 1117, causing the elastic arm to undergo elastic deformation. This ensures that the reset protrusion 515a cannot pass over the reset engagement protrusion 1117 when there is no external force, thereby limiting the continued rotation of the first rotating member 51a. During production, workers need to check the usability of the developing cartridge 1. Therefore, the control component is rotated to confirm whether it can successfully cooperate with the image forming apparatus and pass the image forming apparatus's test. After the test is completed, the first rotating member 51a of the control component has moved to the disengaged state. At this time, in order to reduce wear, the developed cartridge 1 that has passed the test can still be sold after a reset operation. During the reset, it is only necessary to move the first rotating member 51a so that the reset protrusion 515a can overcome the elastic force of the elastic arm under the action of external force, thereby passing over the reset engagement protrusion 1117, and finally making the first inclined surface 5151 abut against the third inclined surface 11171 to complete the reset. After the reset is completed, the elastic force of the elastic arm acts on the first inclined surface 5151, so that the first rotating member 51a has a slight rotational tendency. Therefore, when the drive unit 21a receives the power provided by the image forming apparatus and rotates, the first rotating member 51a, with the help of the elastic force provided by the elastic arm and the reset engagement protrusion 1117, can easily move the toothed gear 535a from the disengaged state to the engaged state.

[0376] In this embodiment, the transmission assembly also includes an idler gear 56b (i.e., a transmission gear). The idler gear 56b includes a small-diameter gear 562 and a large-diameter gear 561, which are coaxially integrally formed. The large-diameter gear 561 is located to the left of the small-diameter gear 562 and meshes with the drive gear. The small-diameter gear 562 meshes with the toothed gear 535a. In the first direction, the large-diameter gear 561 is located between the plate-shaped portion 537 and the toothed gear 535a. This ensures that when the first rotating member 51a rotates, the plate-shaped portion 537 will not interfere with the idler gear 56b. Furthermore, to simplify the installation process of the idler gear 56b and the first rotating member 51a, the plate-shaped portion 537 is elliptical, allowing the idler gear 56b to be installed first, followed by the first rotating member 51a, without first assembling the first rotating member 51a and the idler gear 56b together and then installing them onto the housing 10, thus simplifying the installation process.

[0377] Example 26:

[0378] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment twenty-three.

[0379] As shown in Figures 80 to 82, the difference between this embodiment and embodiment twenty-three is that:

[0380] The intermediate conductive element 43a is a conductive torsion spring, comprising an integrally formed third main body 431, a third conductive part 432, and a fourth conductive part 438. The third main body 431 is a hollow cylinder formed by winding steel wire. The third conductive part 432 extends forward from the third main body 431, and the fourth conductive part 438 extends backward from the third main body 431. An integrally formed conductive support part 119 protruding to the right is fixedly provided on the first end. The conductive support part 119 is inserted into the third main body 431 to support the intermediate conductive element 43a. The front end of the third conductive part 432 is used to abut against and electrically connect with the powder discharge knife.

[0381] In this embodiment, the first chip 32 includes a substrate 32b, a storage medium, a first electrical contact surface 331, a ground electrical contact surface 332, a third electrical contact surface 333, and a fourth electrical contact surface 334. The storage medium, the first electrical contact surface 331, the ground electrical contact surface 332, the third electrical contact surface 333, and the fourth electrical contact surface 334 are all fixedly disposed on the substrate 32b. The storage medium is fixedly disposed on the lower surface of the substrate 32b, and the first electrical contact surface 331, the ground electrical contact surface 332, the third electrical contact surface 333, and the fourth electrical contact surface 334 are fixedly disposed on the upper surface of the substrate 32b.

[0382] The developing cartridge 1 also has a second chip 39. The control module is located on the second chip 39, which serves as the control component. The fourth conductive part 438 is electrically connected to the second chip 39. A wire 38 is provided between the second chip 39 and the first chip 32. One end of the wire 38 is electrically connected to the second chip 39, and the other end is electrically connected to the grounding contact surface 332 on the first chip 32. Two battery mounting parts are provided on the lower surface of the second chip 39. The battery mounting parts are used to install batteries 393 that supply power to the second chip 39. Each battery mounting part includes a conductive surface electrically connected to the second chip 39 and a retainer 392. Both the conductive surface and the retainer 392 are fixedly disposed on the lower surface of the second chip 39. The retainer 392 is made of metal, and a receiving space is formed between the retainer 392 and the lower surface of the second chip 39. The conductive surface is disposed within the receiving space and is used to contact the positive terminal of the battery 393. The retainer 392 is used to contact the negative terminal of the battery 393.

[0383] The lower surface of the second chip 39 is fixedly provided with a seventh electrical contact surface 394, which is used to contact and electrically connect with the fourth conductive part 438.

[0384] The second chip 39 also includes an insulating member 6, which is located between the battery 393 and the conductive surface, thereby blocking the electrical connection between the battery 393 and the conductive surface. In this embodiment, the insulating member 6 is preferably a plastic sheet. One end of the insulating member 6 is inserted between the battery 393 and the conductive surface, and the other end is provided with a pull ring 61 for easy removal by the user.

[0385] In this embodiment, the second chip 39 is rectangular, and mounting holes 391 are provided at the right front corner and the left rear corner of the second chip 39. The mounting holes 391 are circular through holes.

[0386] The first end 11 is also provided with a first cover 111. The first cover 111 is used to cover the transmission component at the first end of the box to protect the transmission component. The first cover 111 is provided with a mounting groove 1118, and the mounting groove 1118 is used to install the chip bracket 31.

[0387] The chip support 31 includes a chip support portion and a cover portion. The chip support portion has a chip support groove 311 formed by a downward indentation. A connecting hole 313 is provided on the bottom surface of the chip support groove 311, and the wire 38 is connected to the chip through the connecting hole 313. The cover portion extends to the left from the chip support portion and is used to cover the mounting groove 1118. The cover portion and the mounting groove 1118 enclose a mounting space. The second chip 39 is installed in the mounting space and covered by the cover portion, thereby protecting the second chip 39. The covering portion includes a cover plate 314, which extends in a first direction and covers the second chip 39 in the vertical direction. Two downwardly protruding mounting posts 3142 are fixedly disposed on the lower surface of the cover plate 314. Each mounting post 3142 corresponds to a mounting hole 391. When viewed from below, the circumferential surface of the mounting posts 3142 is semi-circular. A downwardly protruding elastic post 3143 is also disposed on one side of the cover plate 314. A mounting protrusion 3144 is disposed at the lower end of the elastic post 3143. The mounting protrusion 3144 includes a mounting bracket. An inclined surface 3145 is installed, with its inclination direction set such that the end furthest from the mounting post 3142 is positioned higher than the end closest to the mounting post 3142. Furthermore, the distance from the end of the inclined surface 3145 furthest from the mounting post 3142 to the center of the circumference of the mounting post 3142 is greater than the radius of the mounting hole 391. The distance from the end of the inclined surface 3145 furthest from the mounting post 3142 to the center of the circumference of the mounting post 3142 is also greater than the radial distance from the end of the elastic post 3143 furthest from the mounting post 3142 to the center of the circumference of the mounting post 3142. This results in a support surface forming on the mounting protrusion 3144 that protrudes radially from the sidewall of the elastic post 3143. When the second chip 39 is installed on the cover plate 314, the mounting hole 391 is aligned and pressed with the mounting post 3142 and the elastic post 3143, so that the circumferential surface of the mounting hole 391 contacts and presses the mounting inclined surface 3145. This causes the mounting inclined surface 3145 to drive the elastic post 3143 to bend towards the mounting post 3142, resulting in elastic deformation. After the mounting hole 391 passes the mounting protrusion 3144, the mounting inclined surface 3145 no longer abuts against the mounting hole 391. As a result, the elastic post 3143 returns to its original shape in the direction away from the mounting post 3142, so that the supporting surface on the mounting protrusion 3144 abuts against the lower surface of the second chip 39, thereby supporting the second chip 39 between the supporting surface and the cover plate 314, completing the positioning of the second chip 39 in the vertical direction.

[0388] The mounting post 3142 is fitted into the mounting hole 391. This allows the outer circumferential surface of the mounting post 3142 to fit against the inner circumferential surface of the mounting hole 391 when the mounting post 3142 and the elastic post 3143 are inserted into the mounting hole 391 together, thereby positioning the second chip 39 in the left-right and front-back directions.

[0389] The cover plate 314 is also fixedly provided with a mounting buckle 3141, which is used to engage with the snap-fit ​​part 1119 on the first cover 111, so that the cover plate 314 is fixed relative to the first cover 111.

[0390] The insulating member 6 extends from inside the mounting space to outside the space, and the pull ring 61a is located outside the mounting space for easy removal by the user. Before installing the developing cartridge 1 into the image forming apparatus, the user pulls the pull ring 61a to pull out the insulating member 6, allowing the battery 393 to make electrical connection with the conductive surface, thus enabling the battery 393 to power the second chip 39 and allowing the second chip 39 to start working normally. The structures in the above embodiments can be used in combination or individually.

[0391] In summary, the above description is merely a preferred embodiment of this application and is not intended to limit the scope of this application. Based on the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. The technical scope of this application is not limited to the content of the specification; all equivalent variations and modifications of the shape, structure, features, and spirit described in the claims of this application should be included within the scope of the claims.

Claims

1. A developing cartridge, comprising: The box body has a first end and a second end that are arranged opposite to each other in a first direction, and a third end and a fourth end that are arranged opposite to each other in a second direction, wherein the first direction and the second direction intersect each other. A developing roller, rotating about a first axis extending in the first direction, is located at the third end; The drive unit, which receives external power and rotates, is located at the first end; The light-emitting element is closer to the fourth end in the second direction than the developing roller; The abutment is located at the second end.

2. A developing cartridge according to claim 1, characterized in that, It also includes a test piece that is closer to the first end than the second end, and the test piece moves according to the rotation of the drive unit.

3. A developing cartridge according to claim 2, characterized in that, It also includes a power supply component and a switching component, wherein the power supply component and the light-emitting component are electrically connected, and the detected component drives the switching component to move between a conducting position and a disconnected position.

4. A developing cartridge according to claim 3, characterized in that, It also includes a connector that is electrically connected to the power supply component, the light-emitting component, and the switch component.

5. A developing cartridge according to claim 2, characterized in that, The component being tested is a rotating component, which can directly or indirectly engage with the drive unit.

6. A developing cartridge according to claim 3, characterized in that, The switch is closer to the first end than the second end.

7. A developing cartridge according to claim 3, characterized in that, It also includes a control unit, which is electrically connected to the light-emitting element, the power supply element, and the switch element; when the switch element is in the on position, the power supply element, the switch element, and the control unit are electrically connected, and the control unit controls the light-emitting element to light up or turn off.

8. A developing cartridge according to claim 1, characterized in that, It also includes a storage medium, a power supply, and a control unit. The storage medium is electrically connected to the control unit and the light-emitting element. The control unit receives a control signal sent by the storage medium and controls the light-emitting element to light up or turn off according to the control signal.

9. A developing cartridge according to claim 1, characterized in that, In the second direction, the distance between the light-emitting element and the first axis is 50mm to 75mm.

10. A developing cartridge according to claim 1, characterized in that, The abutment is closer to the developing roller than the light-emitting element in the second direction.

11. A developing cartridge, comprising: The box body has a first end and a second end that are disposed opposite to each other in a first direction, and a third end and a fourth end that are disposed opposite to each other in a second direction that intersects the first direction. A developing roller, located at the third end, rotates about a first axis extending in a first direction; A drive unit, located at the first end, is capable of rotating about a second axis extending in a first direction; The feature is that it further includes a conductive component and a detected element, wherein the conductive component includes an electrical receiving part and a grounding conductive part, the electrical receiving part is located at the second end, and the grounding conductive part is electrically connected to the electrical receiving part. The device under test controls the electrical connection between the electrical receiving unit and the grounding conductive element.

12. A developing cartridge according to claim 11, characterized in that, The conductive component further includes a movable part that is movable between a contact position and a separation position. When the movable part is in the contact position, the electrical receiving part is electrically connected to the grounding conductive element or the grounding conductive element extends. When the movable part is in the separation position, the electrical receiving part is not electrically connected to the grounding conductive element or the grounding conductive element retracts. The tested component is used to control the movement of the movable part between the contact position and the separation position.

13. A developing cartridge according to claim 12, characterized in that, The tested component rotates or translates according to the movement of the drive unit. The tested component includes a tested protrusion that follows the movement of the tested component and causes the movable part to move between a contact position and a separation position.

14. A developing cartridge according to claim 12, characterized in that, The conductive component further includes an intermediate conductive element, which is electrically connected to the electrical receiving part and the grounding conductive element.

15. A developing cartridge according to claim 12, characterized in that, The conductive component further includes a first conductive element and a second conductive element. The first conductive element is located at the second end and is provided with the electrical receiving portion. The second conductive element is at least partially located between the first end and the second end. In the first direction, the first end is closer to the movable portion than the second end.

16. A developing cartridge according to claim 12, characterized in that, The movable part is disposed on the grounding conductive element, and the grounding conductive element moves relative to the box body.

17. A developing cartridge according to claim 12, characterized in that, It also includes a first chip, which includes a grounding contact surface that is electrically connected to the grounding conductive element and is located at the first end.

18. A developing cartridge according to claim 17, characterized in that, The grounding conductive component includes a chip holder made of conductive material, which supports the first chip.

19. A developing cartridge according to claim 11, characterized in that, It also includes a first chip and a second chip. The first chip has a grounding contact surface that is electrically connected to the grounding conductive element and is located at the first end. The second chip includes a power supply element and a control module. The control module is the device being tested, and the power supply element supplies power to the control module.

Images