Doctor blade and developer cartridge

Abstract

Provided in the present application are a doctor blade and a developer cartridge having same. The doctor blade is configured to regulate the thickness of a toner layer on the surface of a developer roller, the doctor blade comprising a blade and a blade holder which are mutually bonded, wherein the blade is configured to come into contact with the surface of the developer roller. The doctor blade further comprises: a mounting portion which is at least arranged on the blade holder, wherein the doctor blade is fixedly mounted by means of the mounting portion; and a bonding area which is located on at least one of the blade holder and the blade, wherein the blade holder and the blade are bonded in the bonding area, and the mounting portion is located in the bonding area.

Description

Powder knife and developer box Technical Field

[0001] The utility model relates to the field of electronic photographic imaging, in particular to a developing box detachably installed in an electronic photographic imaging device and a powder discharging knife arranged in the developing box. Background Art

[0002] There is a developing box used in an electronic photographic imaging device (hereinafter referred to as "imaging device"), in which rotating parts such as a developing roller, a powder feeding roller, and a stirring frame are rotatably arranged. When the developing box is developing in the imaging device, the driving force receiving member in the developing box receives the driving force from the imaging device to drive the developing roller, the powder feeding roller and the stirring frame to rotate. The stirring frame is used to stir the carbon powder stored in the developing box, the powder feeding roller is used to transport the carbon powder toward the developing roller, and the developing roller is used to carry the carbon powder and supply the carbon powder to a photosensitive drum on which an electrostatic latent image is formed, so that the electrostatic latent image on the photosensitive drum is developed.

[0003] In order to enable the imaging device to know whether the developing box is installed, its model, service life and other information, the developing box is also provided with a detection device, and the imaging device is provided with a detected part for interacting with the detection device. As the driving force receiving part receives the driving force, the detection device starts to work. When the detection device completes the interaction with the detected part, the detection process ends, the detection device stops working, and the developing box continues to develop.

[0004] Utility Model Content

[0005] The present invention further develops the existing technology to improve the working stability of the developer box and the powder discharging knife, specifically:

[0006] The powder knife is used to adjust the thickness of the carbon powder layer on the surface of the developer roller. The powder knife includes a blade and a knife holder that are combined with each other. The blade is used to contact the surface of the developer roller.

[0007] The powder knife also includes:

[0008] A mounting portion, at least provided on the knife holder, through which the powder discharging knife is fixedly mounted;

[0009] The combining area is located on at least one of the tool holder and the blade. The tool holder and the blade are combined in the combining area. The mounting portion is located in the combining area.

[0010] In some embodiments, the developing roller rotates about a rotation axis extending in a first direction, and along a direction intersecting both the first direction and a thickness direction of the blade, the blade holder has a first end and a second end spaced apart from each other, and the blade has a third end and a fourth end spaced apart from each other, wherein the second end is located between the third end and the fourth end, the third end is located between the first end and the second end, the first end is farther from the rotation axis than the second end, the third end is farther from the rotation axis than the fourth end, and the third end is farther from the rotation axis than the second end;

[0011] A binding region is formed between the second end and the third end.

[0012] In some embodiments, the mounting portion passes through both the blade and the blade holder.

[0013] In some embodiments, the blade includes a pressing portion and an extending portion connected to each other, wherein the pressing portion is configured to contact the surface of the developing roller, and the extending portion extends from a distal end of the pressing portion;

[0014] When viewed along the first direction, an angle β formed between an extending direction of the pressing portion and an extending direction of the extending portion is greater than 90°.

[0015] In some embodiments, the blade is formed with a contact portion for contacting the surface of the developing roller, and the pressing portion has an end surface facing upstream in the rotation direction of the developing roller, which extends from the contact portion in a direction away from the developing roller, and the angle α formed between the end surface and the tangent plane passing through the contact portion is less than 90°.

[0016] In some embodiments, the powder discharging knife further includes a reinforcement member disposed on the knife holder, and the reinforcement member and the blade are installed together on the same side of the knife holder.

[0017] In a second aspect, a developing box is provided, which is detachably mounted to an imaging device, and includes any one of the above-mentioned powder blades, and

[0018] The shell is used to contain carbon powder, and the powder discharge knife is fixedly installed on the shell;

[0019] a developing roller rotatably disposed in the housing, wherein a rotation axis of the developing roller extends along a first direction;

[0020] a driving force receiving member for receiving a driving force from the image forming device to drive the rotating member to rotate;

[0021] a conductive member for receiving power from the image forming device and supplying power to the developing roller;

[0022] When viewed along the first direction, the conductive member is outside the projection range of the driving force receiving member.

[0023] In some embodiments, along a first direction, the housing has a left wall and a right wall separated from each other, the cavity for accommodating carbon powder is located between the left wall and the right wall, the driving force receiving member is directly or indirectly mounted on the left wall, and the conductive member is directly or indirectly mounted on the right wall;

[0024] The developing roller includes a developing roller shaft and a developing layer covering the outside of the developing roller shaft. The developing layer is used to carry carbon powder. The developing roller passes through the right side wall, and the conductive member contacts the end surface of the developing roller shaft.

[0025] In some embodiments, along a first direction, the housing has a left wall and a right wall separated from each other, the cavity for accommodating carbon powder is located between the left wall and the right wall, the driving force receiving member is directly or indirectly mounted on the left wall, and the conductive member is directly or indirectly mounted on the right wall;

[0026] The developing box further includes a supporting portion arranged on the right side wall, the developing roller is supported by the supporting portion, and the conductive member passes through or crosses the right side wall to contact the developing roller.

[0027] In some embodiments, the developing box further includes a sleeve installed in the supporting portion, the developing roller includes a developing roller shaft and a developing layer wrapped around the outside of the developing roller shaft, the developing layer is used to carry carbon powder, and the developing roller shaft is supported by the sleeve.

[0028] In some embodiments, the support portion is provided with an entry port, and the conductive member enters the support portion through the entry port and contacts the end surface of the developing roller shaft.

[0029] In some embodiments, the developing box includes a powder feeding roller, the powder feeding roller includes a powder feeding roller shaft and a powder feeding layer wrapped around the outside of the powder feeding roller shaft, the powder feeding layer is used to supply carbon powder to the developing layer, and at least one of the developing roller shaft and the powder feeding roller shaft does not pass through the right side wall.

[0030] In some embodiments, when viewed along the first direction, the developer roller shaft and the powder feed roller shaft are not exposed toward at least one of both ends in the first direction.

[0031] In some embodiments, along a first direction, the housing has a left wall and a right wall separated from each other, the cavity for accommodating carbon powder is located between the left wall and the right wall, the driving force receiving member is directly or indirectly mounted on the left wall, and the conductive member is directly or indirectly mounted on the right wall;

[0032] Along the first direction, the developing roller shaft and the powder feeding roller shaft are not exposed to the right.

[0033] In some embodiments, the developer box also includes a first support portion and a second support portion formed integrally with the right side wall, wherein the first support portion has a first support groove for supporting the powder feeding roller shaft, and the second support portion has a second support groove for supporting the developing roller shaft, and neither the first support groove nor the second support groove is exposed from the right side wall.

[0034] In some embodiments, the powder feed roller shaft is surrounded by the first support groove, and the developer roller shaft is surrounded by the second support groove.

[0035] In some embodiments, the first supporting groove and the second supporting groove are connected through a connecting portion.

[0036] In some embodiments, along a first direction, the housing has a left wall and a right wall separated from each other, the cavity for accommodating carbon powder is located between the left wall and the right wall, the driving force receiving member is directly or indirectly mounted on the left wall, and the conductive member is directly or indirectly mounted on the right wall;

[0037] Along the first direction, the developing roller shaft and the powder feeding roller shaft are not exposed to the left.

[0038] In some embodiments, the developer box further includes a shielding member integrally formed with the shell, the shielding member extending leftward from the left side wall, and along the first direction, the developing roller shaft and the powder feeding roller shaft are both shielded by the shielding member.

[0039] In some embodiments, the developing cartridge further includes a first driving force receiving member and a first transmitting member, wherein the first driving force receiving member is configured to receive the driving force from the driving force output member, and the first transmitting member is coaxially disposed with the first driving force receiving member to transmit the driving force;

[0040] The shielding member has an opening facing the first transmission member, and a shielding space is formed inside the shielding member. The shielding space faces the first transmission member through the opening.

[0041] In some embodiments, the developing box also includes a third support portion and a fourth support portion integrally formed with the left side wall, wherein the third support portion has a first through hole for supporting the powder feeding roller shaft, and the fourth support portion has a second through hole for supporting the developing roller shaft, and the first through hole and the second through hole are both connected to the shielding space.

[0042] In some embodiments, the powder feed roller shaft is surrounded by the first through hole, and the developer roller shaft is surrounded by the second through hole.

[0043] In a third aspect, a developing cartridge is provided, which is detachably mounted on an imaging device provided with a detection member, the developing cartridge comprising a powder discharge knife as described above, and

[0044] The shell is used to contain carbon powder, and the powder discharge knife is fixedly installed on the shell;

[0045] a developing roller rotatably disposed in the housing, wherein a rotation axis of the developing roller extends along a first direction;

[0046] a powder feeding roller, rotatably disposed in the housing, in contact with the developing drum, and used for supplying carbon powder to the developing roller;

[0047] a stirring frame rotatably disposed in the housing and used for stirring carbon powder;

[0048] A detection device, configured to interact with the detected component so that parameter information of the developing cartridge is known to the imaging device;

[0049] a driving force receiving member for receiving a driving force from the image forming device to drive the rotating member to rotate;

[0050] a driving force transmission assembly comprising a first transmission member, a second transmission member, a third transmission member, a fourth transmission member, and a fifth transmission member, wherein the first transmission member is coaxially arranged with the driving force receiving member, the second transmission member is coaxially arranged with the developing roller, the third transmission member is coaxially arranged with the powder feeding roller, the fifth transmission member is coaxially arranged with the stirring frame, the fourth transmission member is located between the first and fifth transmission members, the fourth transmission member is coupled to both the first and fifth transmission members, and the fifth transmission member is configured to couple with the detection device;

[0051] The fourth transmission member includes a second small diameter portion and a second large diameter portion coaxially arranged, wherein the diameter of the second small diameter portion is smaller than that of the second large diameter portion, the second large diameter portion is coupled to the first transmission member, and the second small diameter portion is coupled to the fifth transmission member;

[0052] Along the first direction, the second small diameter portion is farther from the housing than the second large diameter portion.

[0053] In some embodiments, along the first direction, a distance between the fifth transmission member and the housing is not less than a distance between the fourth transmission member and the housing and / or a distance between the first transmission member and the housing.

[0054] In a fourth aspect, a developing cartridge is provided, which is detachably mounted to an imaging device, and includes:

[0055] a housing for containing carbon powder;

[0056] a developing roller rotatably disposed in the housing, wherein a rotation axis of the developing roller extends along a first direction;

[0057] A powder discharge knife as in any of the above items, fixedly mounted on the housing, for adjusting the thickness of the carbon powder layer on the surface of the developing roller;

[0058] a driving force receiving member for receiving a driving force from the imaging device to drive the rotating member to rotate, and having a rotation axis parallel to the first direction; wherein,

[0059] The blade holder includes a first part and a second part connected to each other, the blade is supported by the first part, and the first part and the second part are L-shaped;

[0060] When viewed in the first direction, the edge of the tool holder forms a surface M perpendicular to the rotation axis of the driving force receiving member, and the rotation axis of the driving force receiving member is located outside the surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] 1A and 1B are perspective views of a developing cartridge according to a first embodiment of the present invention.

[0062] FIG2 is an exploded schematic diagram of some components of the driving end of the developer cartridge according to the first embodiment of the present invention after being separated from the developer housing.

[0063] FIG3A is a side view of the developing cartridge according to the first embodiment of the present invention observed along a first direction after the driving end cover is hidden.

[0064] 3B is a side view of the developing cartridge according to the first embodiment of the present invention observed along the third direction after the driving end cover is hidden.

[0065] FIG4 is an exploded schematic diagram of the developer cartridge according to the first embodiment of the present invention after some components of the conductive end are separated from the developer housing.

[0066] FIG5 is a side view of the developing cartridge according to the first embodiment of the present invention as viewed along a first direction.

[0067] FIG6A is a top view of the powder discharging knife according to the first embodiment of the present invention observed along the second direction.

[0068] FIG6B is a side view of the powder discharge blade and the developing roller according to the first embodiment of the present invention when viewed along the first direction.

[0069] FIG7A is a perspective view of the driving end of the developing cartridge according to the second embodiment of the present invention.

[0070] 7B is a side view of the developing cartridge according to the second embodiment of the present invention observed along the third direction after the driving end cover is hidden.

[0071] FIG8 is a top view of the powder discharging knife according to the second embodiment of the present invention observed along the second direction.

[0072] Figure 9 is a three-dimensional view of the conductive end of the developer box involved in Example 3 of the present utility model.

[0073] Figure 10 is a three-dimensional view of the developer box after the surface cover and the bottom shell are separated according to the fourth embodiment of the present invention.

[0074] Figure 11 is a three-dimensional view of the developer box according to the fifth embodiment of the present invention after the bracket, the conductive member and the developer housing are separated.

[0075] FIG12 is a perspective view of a powder discharging knife according to a sixth embodiment of the present invention.

[0076] Figure 13 is a side view of the relative positions of the powder discharge knife, the developing roller and the first transmission member in the developing box involved in Example 6 of the present utility model when viewed from right to left along the first direction.

[0077] Figure 14 is a three-dimensional view of the developer box involved in Example 7 of the present utility model, after the powder discharge knife is separated from the developer shell.

[0078] FIG15 is a perspective view of the powder discharging knife according to the eighth embodiment of the present invention.

[0079] FIG16 is a three-dimensional diagram of a deformed structure of a powder discharging knife according to the eighth embodiment of the present invention.

[0080] Figure 17 is a three-dimensional view of the conductive end of the developer box involved in Example 9 of the present utility model.

[0081] Figure 18 is a three-dimensional diagram of the developing box involved in Example 9 of the present utility model during installation.

[0082] 19A and 19B are side views of the development cartridge according to the ninth embodiment of the present invention, viewed along a third direction, during the installation and rotation process.

[0083] 19C is a side view of the interaction between the detection device and the detected component in the developing box according to the ninth embodiment of the present invention, as viewed along the third direction.

[0084] Figure 20 is a three-dimensional view of the developing box involved in Example 10 of the present utility model when it is installed toward the imaging device.

[0085] Figure 21 is a three-dimensional view of the conductive end of the developer box involved in Example 10 of the present utility model.

[0086] Figure 22 is a state diagram of the detection device in the developer box involved in Example 10 of the present utility model before starting detection.

[0087] Figure 23 is a state diagram of the detection device in the developer box involved in Example 10 of the present utility model after completing the detection.

[0088] Figures 24 and 25 are three-dimensional views of the developing box involved in Example 11 of the present utility model.

[0089] Figure 26 is a state diagram of the developing box and its adapted drum box involved in Example 11 of the present utility model when they are installed together toward the imaging device.

[0090] Figure 27 is a three-dimensional view of a processing box having a developing box involved in Example 12 of the present utility model.

[0091] FIG28 is a cross-sectional view taken along the AA direction in FIG27 .

[0092] Figure 29 is a three-dimensional view of the developing box involved in Example 13 of the present utility model.

[0093] Figures 30A and 30B are three-dimensional views of the chip assembly mounting portion in an imaging device adapted to the developing cartridge involved in the present invention.

[0094] FIG30C is a side view of the chip mounting portion viewed along the first direction.

[0095] Figures 31A-31C are schematic diagrams of the process of installing the developing box and its adapted drum box involved in Example 13 of the present invention to the imaging device.

[0096] Figure 32 is an exploded view of the developer box involved in Example 13 of the present utility model, after the protective plate is separated from the developer shell.

[0097] Figure 33 is a side view of the developing box involved in Example 13 of the present invention observed along the first direction.

[0098] Figure 34 is a three-dimensional view of the developing box involved in Example 14 of the present utility model.

[0099] Figure 35 is a three-dimensional view of a drum box applicable to the developing box involved in the present invention.

[0100] Figures 36A and 36B are state diagrams of the developer box involved in Example 14 of the present invention when it is installed on the drum box.

[0101] Figure 37 is a state diagram of the developing box involved in Example 15 of the present utility model when it is installed to the drum box.

[0102] Figure 38 is a state diagram of the developing box involved in Example 16 of the present utility model when it is installed to the drum box.

[0103] Figure 39 is a state diagram of the developer box involved in Example 17 of the present utility model when it is installed to the drum box.

[0104] Figure 40 is a three-dimensional view of the developing box involved in Example 17 of the present utility model.

[0105] Figure 41 is a side view of the developing box involved in Example 17 of the present invention observed along the first direction.

[0106] Figure 42A is a three-dimensional view of the conductive end of the assembly formed after the developer box involved in Example 17 of the present invention is installed to the drum box.

[0107] Figure 42B is a side view of the developer box involved in Example 17 of the present invention observed along the first direction after being installed to the drum box.

[0108] Figures 43A and 43B are state diagrams of the developing box and the protective cover after being separated according to the eighteenth embodiment of the present invention.

[0109] FIG44 is a cross-sectional view taken along the BB direction in FIG43B .

[0110] Figures 45A and 45B are state diagrams of the developing box involved in Example 19 of the present invention when it is installed on the drum box.

[0111] Figure 46 is a three-dimensional view of the imaging device to which the developing box involved in Example 19 of the present utility model is applicable.

[0112] Figure 47 is a three-dimensional diagram of the developer box and the drum box after being separated from each other.

[0113] Figure 48 is a three-dimensional view of the developing box involved in Example 20 of the present utility model.

[0114] Figure 49 is a three-dimensional diagram of the detection device and the driving source combined when the developing box involved in Example 20 of the present invention is installed on the drum box.

[0115] Figure 50 is a three-dimensional diagram of the detection device of the developing box involved in embodiment 21 of the present invention, combined with the driving source.

[0116] Figure 51 is a three-dimensional diagram of the triggering member in the imaging device triggering the triggered member in the developing box when the developing box involved in Example 21 of the present invention is installed on the drum box.

[0117] Figure 52 is a state diagram of the detection device, driving source and developing shell in the developing box involved in Example 22 of the present utility model being separated from each other.

[0118] Figure 53 is a three-dimensional diagram of the combination of the detection device and the driving source in the developing box involved in Example 23 of the present utility model.

[0119] Figure 54A is a state diagram of the developer box involved in Example 23 of the present utility model, when the detection part in the detection device is located at the first position.

[0120] Figure 54B is a state diagram of the developer box involved in Example 23 of the present utility model, when the detection part in the detection device is located at the second position.

[0121] Figure 55A is a state diagram of the developing box involved in Example 24 of the present utility model when it is in contact with the photosensitive drum.

[0122] Figure 55B is a side view of the developing box involved in Example 24 of the utility model observed from the conductive end along the first direction.

[0123] Figure 56 is a side view of the developing box involved in Example 24 of the present invention observed along the first direction after being cut along the AA direction in Figure 27.

[0124] Figure 57 is a side view of the developing box involved in Example 24 of the utility model observed from the driving end along the first direction.

[0125] Figure 58 is a three-dimensional view of the developer box involved in Example 24 of the present utility model after the cover and the developer shell are separated.

[0126] Figure 59 is a partial exploded view of the developing box involved in Example 25 of the present utility model.

[0127] Figure 60 is a three-dimensional view of the non-driving end of the bottom shell of the developing box involved in Example 25 of the present utility model.

[0128] Figures 60 and 61 are schematic diagrams of the deformation structure of the non-driving end of the bottom shell of the developing box involved in Example 25 of the present utility model.

[0129] Figure 62 is a three-dimensional view of the end cover of the developer box involved in Example 26 of the present utility model after being separated from the developer shell.

[0130] Figure 63 is a stereoscopic view of the driving end of the bottom shell of the developing box involved in Example 26 of the present utility model when viewed from right to left.

[0131] Figures 64 and 65 are three-dimensional views of the driving end of the bottom shell of the developing box involved in Example 26 of the present utility model when viewed from left to right.

[0132] Figure 66 is a three-dimensional view of the developing box involved in Example 27 of the present utility model.

[0133] Figure 67 is a three-dimensional view of the developing box involved in Example 27 of the present utility model.

[0134] Figure 68 is a partial enlarged view of point A in Figure 67.

[0135] Figure 69 is a perspective view of a developing cartridge according to Example 27 of the present invention. Figure 70 is a partial enlarged view of point B in Figure 69.

[0136] Figure 71 is an overhead view of the chip assembly of the developing box involved in Example 27 of the present utility model.

[0137] FIG72 is a cross-sectional view taken along the BB direction of FIG71 .

[0138] Figure 73 is a three-dimensional view of the chip component mounting portion involved in Example 27 of the present invention.

[0139] Figure 74 is a three-dimensional view of the chip component mounting portion involved in Example 27 of the present invention.

[0140] FIG75 is a side view of the chip assembly mounting portion as viewed from the first direction.

[0141] Figure 76 is a side view of the developing box involved in Example 27 of the utility model observed along the first direction.

[0142] Figures 77-80 are schematic diagrams of the installation / disassembly process of the developing box and its adapted drum box involved in Example 27 of the present invention to the imaging device.

[0143] Figure 81 is a state diagram of the processing box of the developing box involved in Example 28 of the present utility model being installed to the mounting part of the imaging device.

[0144] Figure 82 is a three-dimensional view of the processing box of the developing box involved in Example 28 of the present utility model.

[0145] Figure 83 is a side view of the processing box of the developing box involved in Example 28 of the utility model observed along the first direction.

[0146] Figure 84 is a side view of a deformed structure of the lifting member involved in Example 28 of the present utility model observed along the first direction. DETAILED DESCRIPTION

[0147] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0148] [Example 1]

[0149] The developing box 100 can be installed in an imaging device provided with a device-side detection member 90 (as shown in Figure 7) in a detachable manner, or in other words, the developing box 100 is suitable for an imaging device provided with a device-side detection member 90. The developing box 100 can be formed as an "integrated" structure that includes both a developing roller and a photosensitive drum, or can be formed as a "split" structure that includes a developing roller but does not include a photosensitive drum. Regardless of the form of the developing box 100, it can be directly or indirectly installed in a detachable manner to the imaging device. For example, the developing box 100 is first installed to the drum box, and then the combination of the developing box 100 and the drum box is installed in a detachable manner to the imaging device, or the developing box 100 is directly installed in a detachable manner to the imaging device.

[0150] As shown in Figures 1A, 1B, 2, 3A, 3B, 4, 5, 6A and 6B, the developing box 100 includes a developing shell 1 (referred to as "shell 1"), a rotating member 2, a first driving force receiving member 3 and a detection device 30. The developing shell 1 is formed with a cavity 10 for accommodating carbon powder. The rotating member 2 is rotatably arranged in the developing shell 1. The first driving force receiving member 3 is used to receive driving force from the imaging device to drive the rotating member 2 to rotate. The detection device 30 is used to interact with the detected member so that various parameter information of the developing box 100 is known to the imaging device, for example, whether the developing box 100 is installed, the model of the developing box 100, the service life of the developing box 100 and other information; further, the developing box 100 also includes an end cover 11 and a handle (gripping portion) 12 connected to the developing shell 1. The user installs and removes the developing box 100 by operating the handle 12.

[0151] The rotating member 2 and the detection device 30 are both configured to operate by directly or indirectly receiving the driving force from the first driving force receiving member 3. That is, the first driving force receiving member 3 directly or indirectly supplies the driving force it receives to the rotating member 2 and the detection device 30, thereby causing the rotating member 2 and the detection device 30 to operate. In this embodiment, the first driving force receiving member 3 is exposed through an exposure hole 112 (as shown in FIG. 2 ) provided in the end cover 11. The developing cartridge 100 is further provided with a driving force transmission assembly 6, which is configured to transmit the driving force of the first driving force receiving member 3 to the rotating member 2 and the detection device 30, respectively.

[0152] The rotating member 2 includes a developing roller 21, a powder feeding roller 22 and a stirring frame 23. The powder feeding roller 22 is in contact with the developing roller 21 and is used to supply carbon powder to the developing roller 21. The stirring frame 23 is used to stir the carbon powder. When the first driving force receiving member 3 receives the driving force and revolves around the rotation axis L3, the developing roller 21, the powder feeding roller 22 and the stirring frame 23 rotate around their respective rotation axes respectively, wherein the rotation axis of the developing roller 21 is L1, the rotation axis of the stirring frame 23 is L23, and the rotation axes L1, L3, and L23 are parallel to each other.

[0153] To make the following description clearer, the extension direction of the rotation axis L1 is defined as the first direction, the direction intersecting the first direction is defined as the second direction, and the direction intersecting the first direction and the second direction is defined as the third direction. Preferably, the first direction, the second direction and the third direction are orthogonal. As shown in the figure, along the second direction, the developing roller 21 and the handle 12 are respectively located at the two ends of the developing housing 1. When the developing box 100 is installed toward the drum box or the imaging device, the developing roller 21 is located in front of the installation direction and the handle 12 is located behind the installation direction. Therefore, the second direction can also be regarded as the installation direction. Along the first direction, the first driving force receiving member 3 is located at one end (driving end) of the developing housing 1. The detection device 30 can be arranged at the same end of the developing housing 1 as the first driving force receiving member 3, or can be respectively located at both ends of the developing housing 1. The following takes the detection device 30 and the first driving force receiving member 3 as an example.

[0154] The developing box 100 also includes a powder discharge knife 7 and a conductive member 5. The powder discharge knife 7 is fixedly mounted on the developing housing 1 and contacts the outer surface of the developing roller 21, and is used to adjust the amount of toner carried by the developing roller 21; the conductive member 5 is directly or indirectly mounted on the developing housing 1, and is used to receive power from the imaging device and supply it to the developing roller 21 and / or the powder feeding roller 22.

[0155] Furthermore, along the first direction, the first driving force receiving member 3 and the conductive member 5 are respectively located at the two ends of the developing housing 1, and therefore, the end where the conductive member 5 is located can be called the conductive end (non-driving end), and the driving end is defined as the left side of the developing box 100, and the conductive end is defined as the right side of the developing box 100. When the developing box 100 is in a state of being installed to the imaging device, the gravity direction of the developing box 100 is downward, and vice versa, it is upward. Along the third direction, at least a portion of the powder discharge knife 7 is located above the rotation axis L1.

[0156] Further, along the first direction, the developing housing 1 has a left side wall 1a and a right side wall 1b separated from each other, the cavity 10 is located between the left side wall 1a and the right side wall 1b, the driving force transmission assembly 6 is directly or indirectly installed on the left side wall 1a, and the conductive part 5 is directly or indirectly installed on the right side wall 1b.

[0157] (Drive force transmission component)

[0158] As shown in FIG2 , along the first direction, the end cover 11 is farther away from the housing 1 than at least a portion of the driving force transmission component 6, and at least a portion of the driving force transmission component 6 is covered by the end cover 11; the driving force transmission component 6 includes a first transmission member 61, a second transmission member 62, a third transmission member 63, a fourth transmission member 64 and a fifth transmission member 65, wherein the first transmission member 61 is coaxially arranged with the first driving force receiving member 3 for transmitting the driving force, the second transmission member 62 is coaxially arranged with the developing roller 21, the third transmission member 63 is coaxially arranged with the powder feeding roller 22, the fifth transmission member 65 is coaxially arranged with the stirring frame 23, the fourth transmission member 64 is located between the first transmission member 61 and the fifth transmission member 65, and the fourth transmission member 64 is simultaneously combined with the first transmission member 61 and the fifth transmission member 65, and the fifth transmission member 65 is used to be combined with the detection device 30, so that the driving force received by the first driving force receiving member 3 is transmitted to the detection device 30 in sequence through the first transmission member 61, the fourth transmission member 64 and the fifth transmission member 65; at least one of the second transmission member 62 and the third transmission member 63 is combined with the first transmission member 61 to receive the driving force from the first driving force receiving member 3, when one of the second transmission member 62 and the third transmission member 63 is combined with the first transmission member 61, the second transmission member 62 and the third transmission member 63 can transmit the driving force by combining with each other, when the second transmission member 62 and the third transmission member 63 are combined with the first transmission member 61 at the same time, the driving force can be directly transmitted to the second transmission member 62 and the third transmission member 63, finally, the developing roller 21, the powder feeding roller 22 and the stirring frame 23 are all driven.

[0159] In some embodiments, the third transmission member 63 is shielded by the end cover 11 and is not exposed. In this case, the third transmission member 63 is located between the housing 1 and the end cover 11 and is protected.

[0160] In some embodiments, the first transmission member 61 includes a coaxially arranged first small diameter portion 611 and a first large diameter portion 612, the diameter of the first small diameter portion 611 is smaller than the diameter of the first large diameter portion 612, and along the first direction, the first small diameter portion 611 is farther away from the developing housing 1 / cavity 10 / conductive end than the first large diameter portion 612; the fourth transmission member 64 includes a coaxially arranged second small diameter portion 641 and a second large diameter portion 642, the diameter of the second small diameter portion 641 is smaller than the diameter of the second large diameter portion 642, and the fifth transmission member 65 is combined with the second small diameter portion 641, and along the first direction, the second small diameter portion 641 is farther away from the developing housing 1 / cavity 10 / conductive end than the second large diameter portion 642; the fifth transmission member 65 is provided with an active portion 650 for driving the detection device 30.

[0161] As mentioned above, the first large diameter portion 612 is closer to the developing housing 1 / cavity 10 / conductive end relative to the first small diameter portion 611, and the second large diameter portion 642 is closer to the developing housing 1 / cavity 10 / conductive end relative to the second small diameter portion 641. This design is beneficial to reducing possible shaking of the first transmission member 61 and the fourth transmission member 64, thereby improving the stability of the driving force transmitted by the driving transmission assembly 6.

[0162] As shown in FIG3B , along the first direction, the fifth transfer member 65 is not closer to the developer housing 1 than the fourth transfer member 64 and / or the first transfer member 61, that is, along the first direction, the fifth transfer member 65, the fourth transfer member 64 and the first transfer member 61 are at the same distance from the developer housing 1, or the fifth transfer member 65 is at a distance from the developer housing 1 greater than the distance from the fourth transfer member 64 and / or the first transfer member 61 to the developer housing 1, or the fifth transfer member 65 is at a distance from the developer housing 1 not less than the distance from the fourth transfer member 64 to the developer housing 1 and / or the distance from the first transfer member 61 to the developer housing 1; since the outer surface of the first side wall 1a is not a plane, in order to more clearly show the distance, a reference plane D is introduced in FIG3B , and the reference plane D is parallel to the second direction, and the reference plane D is also Through the cavity 10, along the first direction, the distance between the position of the fifth transfer member 65 farthest from the developing housing 1 and the reference surface D is h1, the distance between the position of the fourth transfer member 64 (the second small diameter portion 641) farthest from the developing housing 1 and the reference surface D is h2, and the distance between the position of the first transfer member 61 (the first small diameter portion 611) farthest from the developing housing 1 and the reference surface D is h3, satisfying h1≥h2, h1≥h3; such a setting can, on the one hand, effectively avoid interference between the fifth transfer member 65 and the fourth transfer member 64 or the fifth transfer member 65 and the first transfer member 61, and on the other hand, can allow the movable member / driving part 31 described later to have a larger movable space. At the same time, the movable member / driving part 31 can also be effectively protected by the fifth transfer member 65 to prevent the movable member / driving part 31 from falling off.

[0163] (Detection device)

[0164] As shown in Figure 2, the detection device 30 includes a detection member (also known as a detection part) 32, a movable member (also known as a driving part) 31, a second pushing member 33 and a reset member 34. Under the action of the reset member 34, the detection member 32 can reciprocate along a direction intersecting with the first direction. The movable member 31 is used to be driven by the fifth transmission member 65 to transmit the driving force to the detection member, thereby forcing the detection member 32 to interact with the detected member. The second pushing member 33 is used to push the movable member 31 toward a state where the driving force transmission with the detection member 32 is disconnected.

[0165] In one embodiment, the detection member 32 is movably mounted on the end cover 11. As shown in the figure, the end cover 11 includes an end cover body 111, an exposure hole 112 and a guide portion 113. Along the first direction, the exposure hole 112 passes through the end cover body 111. The guide portion 113 is used to guide the detection member 32. Preferably, the guide portion 113 is a slide groove provided on the end cover body 111, and the reset member 34 is an elastic member installed in the slide groove 113. When the detection member 32 is driven to move by the movable member 31, the reset member 34 is elastically deformed. When the detection member 32 is no longer driven by the movable member 31, the reset member 34 releases the elastic force, so that the detection member 32 is reset.

[0166] In one embodiment, the guide portion 113 may also be a protrusion provided on the end cover body 111 , and correspondingly, the detection member 32 is provided with a groove for cooperating with the protrusion.

[0167] The movable part 31 includes a movable body 311 and a driven part 312 and a driving part 313 respectively connected to the movable body 311. The driven part 312 and the driving part 313 are both formed to protrude from the movable body 311. The driven part 312 is used to combine with the active part 650 to receive the driving force transmitted by the fifth transmission part 65. The driving part 313 is used to transmit the driving force to the detection part 32, so that the detection part 32 can move along a predetermined trajectory, so that the detection part 32 interacts with the detected part.

[0168] Specifically, the movable member 31 is configured to be movable between a close position close to the developer housing 1 and a far position away from the developer housing 1. More specifically, the movable member 31 is configured to be movable in a direction parallel to the first direction. For example, before the detection device 30 / detection member 32 completes the interaction with the device-side detection member 90, the movable member 31 is located at the far position away from the developer housing 1. At this time, the movable member 31 can transmit the driving force to the detection device 30 / detection member 32. After the detection device 30 / detection member 32 completes the interaction with the detected member, under the action of the second pushing member 33, the movable member 31 moves to the close position close to the developer housing 1. At this time, the movable member 31 is in a close position close to the developer housing 1. The driving force transmission between the movable member 31 and the detection device 30 / detection member 32 is disconnected; in some embodiments, the movement process of the movable member 31 can also be reversed, that is, before the detection device 30 / detection member 32 completes the interaction with the detected member, the movable member 31 is located in a close position close to the developing housing 1, and at this time, the movable member 31 can transmit the driving force to the detection device 30 / detection member 32. After the detection device 30 / detection member 32 completes the interaction with the detected member, under the action of the second pushing member 33, the movable member 31 moves to a distant position away from the developing housing 1, and at this time, the driving force transmission between the movable member 31 and the detection device 30 / detection member 32 is disconnected.

[0169] In some embodiments, the developing box 100 also includes a support column 13 protruding from the left side wall 1a, and the movable part 31 is supported by the support column 13. A coupling groove 314 can be set in the movable part 31, and accordingly, a coupling protrusion 132 that can be coupled with the coupling groove 314 is set on the support column 13. When the movable part 31 is located in a remote position, the coupling groove 314 is not coupled with the coupling protrusion 132. When the detection device 30 / detection part 32 completes the interaction with the detected part, under the action of the second pushing member 33, the coupling protrusion 132 enters the coupling groove 314 and completes the coupling, and the movable part 31 reaches the close position; on the contrary, the positions of the coupling protrusion 132 and the coupling groove 314 can also be interchanged.

[0170] In some embodiments, the detection member 32 is provided with a driven portion 321 and an action portion 322. The driven portion 321 is moved by the driving portion 313, and the driving force is transmitted to the detection member 32. When the detection member 32 is driven, the action portion 322 can interact with the device-side detection member 90.

[0171] (Conductive parts)

[0172] The conductive member 5 is used to receive power from the imaging device to supply it directly or indirectly to the developing roller 21. As shown in Figure 4, the conductive member 5 includes a power receiving portion 51, a power supply portion 52 and a connecting portion 53. The power receiving portion 51 is used to receive power from the imaging device. Through the connecting portion 53, the power is transmitted to the power supply portion 52, and then the power supply portion 52 supplies the power to at least one of the developing roller 21 and the powder feeding roller 22.

[0173] The developing roller 21 includes a developing roller shaft 212 and a developing layer 211 coated on the outside of the developing roller shaft 212, the developing layer 211 is used to carry carbon powder, and the powder feeding roller 22 includes a powder feeding roller shaft 222 and a powder feeding layer 221 coated on the outside of the powder feeding roller shaft 222, the powder feeding layer 221 is used to supply carbon powder to the developing layer 211. Generally, the developing roller shaft 212 and the powder feeding roller shaft 222 are both made of metal to reduce the delay in the process of driving force being transmitted in the developing roller 21 and the powder feeding roller 22; therefore, in some embodiments, the developing roller shaft 212 and the powder feeding roller shaft 222 can also be made of non-metal, or in other words, the developing roller shaft 212 and the powder feeding roller shaft 222 are not conductive. At this time, the power supply unit 52 can supply power directly to the developing layer 211 and / or the powder feeding layer 221. As shown in Figure 4, the support hole in the developing shell 1 for supporting the developing roller shaft 212 and the support hole of the powder feeding roller shaft 222 are not connected.

[0174] In some embodiments, the powder feeding layer 221 includes an insulating layer and a conductive layer. The outer surface of the conductive layer is formed as the outer surface of the powder feeding roller 22 / powder feeding layer 221. Along the radial direction of the powder feeding roller, the insulating layer is located between the powder feeding roller shaft 222 and the conductive layer. That is, the powder feeding roller shaft 222 and the conductive layer are separated by the insulating layer. In this way, the power supplied by the imaging device can be directly supplied to the conductive layer / powder feeding layer 221, or the conductive layer / powder feeding layer 221 directly receives power from the imaging device. At the same time, due to the provision of the insulating layer, the amount of conductive material used in the conductive layer can be reduced, thereby reducing the material cost of the powder feeding roller.

[0175] In some embodiments, along the first direction, the length of the conductive layer and the length of the insulating layer do not need to be limited, as long as there is an insulating layer between the conductive layer and the powder feeding roller shaft 222. Therefore, along the first direction, the conductive layer and the insulating layer can be completely overlapped or staggered.

[0176] In some embodiments, the conductive layer and the insulating layer can both be made of elastic materials. For example, the conductive layer can be made of conductive plastic, conductive rubber, or conductive sponge, and the insulating layer can be made of insulating plastic or insulating rubber. In other embodiments of the present application, the conductive layer can be a conductive coating sprayed on the radial outer surface of the insulating layer. When the powder feeding roller 222 is made of non-conductive material, the insulating layer can be omitted. At this time, the elastic material serving as the conductive layer is directly provided on the radial outer surface of the powder feeding roller 222, or the conductive coating serving as the conductive layer is sprayed on the radial outer surface of the powder feeding roller 222.

[0177] In some embodiments, the insulating layer may also be an insulating coating sprayed on the radial outer surface of the powder feeding roller shaft 222 or sprayed on the radial inner side of the conductive layer.

[0178] In some embodiments, the powder feeding roller shaft 222, the insulating layer and the conductive layer are formed separately. Compared with the existing powder feeding roller whose radial outer side is entirely a conductive layer, the powder feeding roller 22 involved in this embodiment not only reduces the material consumption of the conductive layer, but also when one of the insulating layer and the conductive layer has defects, the defective component can be replaced without replacing the entire powder feeding layer 221, which is beneficial to reducing the cost of the powder feeding roller; in addition, when using the powder feeding roller involved in this embodiment for development, the power supplied by the imaging device can be directly supplied to the conductive layer, and the power loss can be reduced.

[0179] The powder feeding roller 22 can be produced in the following order: first, an insulating layer is installed on the powder feeding roller shaft 222, and then a conductive layer is installed on the insulating layer. Preferably, the hardness of the powder feeding roller shaft 222 is greater than the hardness of the insulating layer and greater than the hardness of the conductive layer.

[0180] In some embodiments, the powder feeding roller 22 can also be produced in the following order: first, a conductive layer is installed on the insulating layer to form a powder feeding layer 221, and then the powder feeding layer 221 is installed on the powder feeding roller shaft 222. Preferably, the hardness of the powder feeding roller shaft 222 is greater than the hardness of the insulating layer and greater than the hardness of the conductive layer, or the hardness of the powder feeding roller shaft 222 is greater than the hardness of the conductive layer and greater than the hardness of the insulating layer.

[0181] In some embodiments, the insulating layer and the conductive layer may be combined by using a double plastic tube sleeve to form the powder feeding layer 221 .

[0182] The structure of the powder feeding roller 22 is also applicable to the developing roller 21 , that is, the developing layer 211 may also be configured to include an insulating layer and a conductive layer.

[0183] Generally, the imaging device is provided with a first power output element for supplying power to the developing roller 21 and a second power output element for supplying power to the powder feeding roller 22. The voltage output by the second power output element is higher than the voltage output by the first power output element. The power receiving part 51 in this embodiment is configured to contact the second power output element and receive the voltage output by the second power output element. The power supply part 52 is in contact with the developing roller shaft 212. Preferably, the power supply part 52 is in contact with the end face of the developing roller shaft 212.

[0184] As shown in Figure 5, when viewed from right to left along the first direction, the conductive member 5 is located outside the projection range of the first driving force receiving member 3. This design can effectively reduce the impact of the vibration generated by the first driving force receiving member 3 during rotation on the conductive member 5. In particular, at the moment the first driving force receiving member 3 is driven, the vibration generated by the first driving force receiving member 3 is greater, but the conductive member 5 is not located within the projection range of the first driving force receiving member 3. Therefore, the power receiving part 51 can not only maintain stable contact with the second power output part, but the power supply part 53 can also maintain stable contact with the developing roller shaft 212.

[0185] (Powder knife)

[0186] The powder discharge knife 7 includes a knife holder 71 and a blade 72. Both the knife holder 71 and the blade 72 extend in a first direction. The blade 72 is fixedly mounted on the knife holder 71 and is used to contact the developing roller 21 (developing layer 211) to adjust the thickness of the carbon powder layer on the surface of the developing roller 21 (developing layer 211). Generally, the blade 72 can be connected to the knife holder 71 by bonding, welding, etc. As shown in Figures 6A and 6B, the blade 72 is welded to the knife holder 71, and a plurality of welding portions 74 are formed between the blade 72 and the knife holder 71.

[0187] Furthermore, the powder knife 7 further includes a mounting portion 73 provided at least on the knife holder 71, through which the powder knife is fixedly mounted. Specifically, a screw serving as a mounting member passes through the mounting portion 73, and the powder knife 7 can be fixedly mounted on the developer housing 1. Preferably, the powder knife 7 is provided with two mounting portions 73. Along the first direction, the two mounting portions 73 are respectively located at the two ends of the powder knife, and the mounting portions 73 are provided as mounting holes; along the third direction (a direction intersecting both the first direction and the thickness direction of the blade), the knife holder 71 has mutually spaced portions. The first end 71a and the second end 71b, the blade 72 has a third end 72a and a fourth end 72b spaced apart from each other, wherein the second end 71b is located between the third end 72a and the fourth end 72b, and the third end 72a is located between the first end 71a and the second end 71b. Along the third direction, the first end 71a is farther away from the rotation axis L1 than the second end 71b, the third end 72a is farther away from the rotation axis L1 than the fourth end 72b, and the third end 72a is farther away from the rotation axis L1 than the second end 71b.

[0188] A joining area S is formed between the second end 71b and the third end 72a. The joining area S is located on at least one of the tool holder 71 and the blade 72, and the blade 72 and the tool holder 71 are combined in the joining area S. Along the third direction, the mounting portion 73 and the welding portion 74 are both located in the joining area S. For example, at least one of the second end 71b and the third end 72a is flush with the mounting portion 73. When viewed along the second direction, the mounting portion 73 can be circular or elliptical. At this time, the second end 71b and the third end 72a will be tangent to the mounting portion 73.

[0189] In some embodiments, the mounting portion 73 passes through both the blade 72 and the blade holder 71 , so that the blade 72 can be further fixed.

[0190] In some embodiments, the third end 72a is farther away from the developing roller 21 / rotation axis L1 than the mounting portion 73, or in other words, the third end 72a is farther away from the second end 71b than the mounting portion 73, so that the area of ​​the coupling region S is maximized and the blade 72 can be more stably supported by the blade holder 71.

[0191] [Example 2]

[0192] The same components in this embodiment as those in the first embodiment will be numbered the same and will not be repeated here.

[0193] The driving force transmission component 6 involved in this embodiment has been changed. As shown in Figure 7A, the driving force transmission component 6 in this embodiment also includes a sixth transmission member 66. The sixth transmission member 66 is located between the fourth transmission member 64 and the fifth transmission member 65, and the fourth transmission member 64 is simultaneously combined with the first transmission member 61 and the sixth transmission member 66, and the sixth transmission member 66 is also simultaneously combined with the fifth transmission member 65.

[0194] In some embodiments, the fourth transmission member 64 is configured to still include a coaxially arranged second small diameter portion 641 and a second large diameter portion 642, along the first direction, the second large diameter portion 642 is farther away from the developing housing 1 / cavity 10 / conductive end than the second small diameter portion 641, the first small diameter portion 611 is combined with the second large diameter portion 642, and the second small diameter portion 641 is combined with the sixth transmission member 66.

[0195] In some embodiments, the fifth transmission member 65 is configured to include a coaxially arranged third small diameter portion 651 and a third large diameter portion 652, wherein the third large diameter portion 652 is combined with the sixth transmission member 66, and the third small diameter portion 651 is combined with the detection device 30, for transmitting the driving force to the detection device 30, and thus, the third small diameter portion 651 is equivalent to the above-mentioned active portion 650; the diameter of the third small diameter portion 651 is smaller than the diameter of the third large diameter portion 652, and along the third direction, the third small diameter portion 651 is farther away from the developing housing 1 than the third large diameter portion 652, and along the third direction, the fifth transmission member 65 is closer to the developing housing 1 than the fourth transmission member 64 and the first transmission member 61. Specifically, the part of the third small diameter portion 651 farthest from the developing housing 1 is closer to the developing housing 1 than the part of the fourth transmission member 64 farthest from the developing housing 1 and the part of the first transmission member 61 farthest from the developing housing 1. Such an arrangement is conducive to reducing the size of the developing box 100 in the first direction.

[0196] The structure of the detection device 30 involved in this embodiment has also changed. As shown in Figure 7, the driving force is transmitted between the movable part 31 and the detection part 32 in this embodiment by friction drive or inter-tooth engagement. The movable part 31 is provided with a transmission part 31a and a non-transmission part 31b in the circumferential direction. A part of the transmission part 31a is used to combine with the third small diameter part 651 to receive the driving force, and another part of the transmission part 31a is used to combine with the driven part 321 in the detection part 32 to transmit the driving force to the detection part 32. Therefore, a part of the transmission part 31a can be regarded as the above-mentioned driven part 312, and the other part of the transmission part 31a can be regarded as the above-mentioned driving part 313. When the non-transmission part 31b is combined with the driven part 321, the driving force transmission between the movable part 31 and the detection part 32 is disconnected.

[0197] As shown in Figure 7B, along the first direction, the movable part 31 in this embodiment is arranged farther away from the developing housing 1 / cavity 10 / conductive end than the first transmission part 61. Similarly, this embodiment still introduces the reference plane D. Along the first direction, the distance between the position of the movable part 31 farthest from the developing housing 1 and the reference plane D is h4, and the distance between the position of the first transmission part 61 (first small diameter portion 611) farthest from the developing housing 1 and the reference plane D is h3, satisfying h4≥h3. This design can improve the stability of the movable part 31 and reduce the risk of shaking of the movable part 31 during rotation.

[0198] The detection member 32 still has the structure of the first embodiment. When the detection member 32 receives the driving force, the detection member 32 moves along a predetermined trajectory, and the action part 322 interacts with the device-side detection member 90. When the driving force transmission between the movable part / driving part 31 and the detection member 32 is disconnected, the reset member 34 releases the elastic force and the detection member 32 is reset.

[0199] In feasible embodiments, there are various ways to transmit driving force between the transmission members. For example, when the driving force is transmitted between the transmission members by tooth meshing, each transmission member can be set as a gear; when the driving force is transmitted between the transmission members by friction drive, each transmission member can be set as a friction wheel; in other embodiments, the transmission members can also be set to use belt drive, ratchet drive, etc., or the transmission members can also transmit driving force by combining the above-mentioned transmission methods; in this embodiment, the driven part 321 is preferably set as a rack.

[0200] The structure of the powder discharge knife 7 involved in this embodiment has also been changed. As shown in Figure 8, in the powder discharge knife 7 in this embodiment, along the first direction, the two ends of the blade 72 are respectively provided with a first notch 721 and a second notch 722, and the two mounting portions 73 do not pass through the first notch 721 and the second notch 722. At this time, the mounting portion 73 will only pass through the tool holder 71. Along the third direction, the mounting portion 73 is still located in the coupling area S.

[0201] [Example 3]

[0202] According to the inventive concept of the above embodiment, this embodiment focuses on changing the structure of the developing roller 21 receiving power and the structure of the conductive member 5.

[0203] In the above embodiment, the developing roller shaft 212 and the powder feeding roller shaft 222 respectively pass through the right side wall 1b and are exposed to the right, so that the conductive member 5 can directly contact the developing roller shaft 212 and / or the powder feeding roller shaft 222 on the right side of the right side wall 1b to transmit electricity; however, since the developing roller shaft 212 and the powder feeding roller shaft 222 also need to pass through the left side wall 1a respectively to receive the driving force, this makes it easy for the developing roller 21 and the powder feeding roller 22 to move in the left and right directions / first direction. For this reason, at least one of the developing roller shaft 212 and the powder feeding roller shaft 222 in this embodiment is configured not to pass through the right side wall 1b to reduce or eliminate the amount of movement of the developing roller 21 and the powder feeding roller 22 in the left and right directions; preferably, along the first direction, the position of the right side wall 1b corresponding to the developing roller shaft 212 and / or the position of the right side wall 1b corresponding to the powder feeding roller shaft 222 are in a closed state, and at this time, the user cannot observe the developing roller shaft 212 and / or the powder feeding roller shaft 222 along the first direction.

[0204] Figure 9 shows a structure in which neither the developing roller 21 nor the powder feeding roller 22 passes through the right side wall 1b, and the developing box 100 also includes a first support portion 1c and a second support portion 1d arranged on the right side wall 1b, wherein the first support portion 1c is used to support the powder feeding roller shaft 222, and the second support portion 1d is used to support the developing roller shaft 212. Specifically, the first support portion 1c and the second support portion 1d can be grooves arranged on the right side wall 1b, or can be protrusions protruding from the right side wall 1b to the left / conductive end (towards the cavity 10).

[0205] Furthermore, in order to reduce the wear of the first support part 1c and the second support part 1d, the developing box 100 also includes a first sleeve 223 and a second sleeve 213 respectively installed in the first support part 1c and the second support part 1d, the powder feeding roller shaft 222 is supported by the first sleeve 223, and the developing roller shaft 212 is supported by the second sleeve 213.

[0206] Different from the above-mentioned embodiment, the power supply portion 52 in this embodiment passes through or crosses the right side wall 1b to achieve contact with the developing roller shaft 212. At this time, the power supply portion 52 reaches the left side of the right side wall 1b from the right side of the right side wall 1b. The power supply portion 52 can contact the circumferential surface of the developing roller shaft 212, or contact the end surface of the developing roller shaft 212. When the power supply portion 52 contacts the end surface of the developing roller shaft 212, the second support portion 1d can also be provided with an entrance 1e for allowing the power supply portion 52 to enter. Finally, along the first direction, the power supply portion 52 is clamped by the right side wall 1b and the end surface of the developing roller shaft 212, and the power supply portion 52 can stably supply power to the developing roller shaft 212.

[0207] [Example 4]

[0208] As shown in Figure 10, the developing shell 1 includes a bottom shell 1t and a surface cover 1s that are combined with each other in a third direction, and a cavity 10 is formed therebetween. The stirring frame 23 is rotatably arranged in the cavity 10. Specifically, the stirring frame 23 is rotatably arranged in the bottom shell 1t. In some embodiments, the developing roller 21 and the powder feeding roller 22 are also rotatably arranged in the bottom shell 1t.

[0209] Furthermore, the bottom shell 1t is also provided with a replenishing port 15 for connecting the cavity 10 and the outside of the developing box. When the bottom shell 1t and the surface cover 1s are combined, or when the toner in the cavity 10 is consumed, toner can be replenished into the cavity 10 through the replenishing port 15.

[0210] Furthermore, the developing box 100 also includes a forced pushing mechanism 14 connected to the face cover 1s. When the developing box 100 is installed to the drum box, the forced pushing mechanism arranged in the drum box pushes the forced pushing mechanism 14, so that the developing roller 21 arranged in the developing housing 1 maintains contact with the photosensitive drum in the drum box.

[0211] Preferably, the forced pushing mechanism 14 includes at least one of a left forced pushing member (first forced pushing member) 14L and a right forced pushing member (second forced pushing member) 14R arranged at intervals along the first direction. More preferably, the left forced pushing member 14L and the right forced pushing member 14R are arranged at the same time, so that the developing box 100 can be forced pushed at both ends of the first direction at the same time.

[0212] The end cover 11 is arranged on the left side of the shell 1. In some embodiments, another end cover 18 is arranged on the right side of the shell 1. Hereinafter, the end cover 11 located on the left side of the shell 1 is referred to as the first end cover, the end cover located on the right side of the shell 1 is referred to as the second end cover, and the end cover body 111 is referred to as the first end cover body.

[0213] [Example 5]

[0214] As mentioned above, the developing roller 21 is rotatably arranged in the developing housing 1. Specifically, the developing box 100 also includes a bracket 8 arranged at the conductive end, the bracket 8 is fixedly connected to the developing housing 1, the developing roller 21 is supported by the bracket 8, and the conductive member 5 can be installed on the developing housing 1 or the bracket 8. At the same time, the conductive member 5 is also electrically connected to the developing roller 21.

[0215] In some embodiments, the conductive member 5 can also be omitted. In this case, at least a portion of the bracket 8 is made of a conductive material, that is, the developing roller 21 can receive electricity from the imaging device through the bracket 8, and one end of the bracket 8 is used to electrically contact the imaging device, and the other end is electrically contacted with the developing roller 21.

[0216] In some embodiments, the bracket 8 is made of a non-conductive material, and the developing roller 21 still receives power from the imaging device through the conductive member 5 .

[0217] Regardless of whether the bracket 8 is made of a conductive material or a non-conductive material, the technical solution of this embodiment is applicable.

[0218] As shown in Figure 11, the bracket 8 includes a supporting portion 81, a connecting portion 82 and a force-bearing portion 84, wherein the supporting portion 81 and the force-bearing portion 84 are respectively located at both ends of the connecting portion 82, the supporting portion 81 is used to support the developing roller 21, and the force-bearing portion 84 is used to receive the pushing force applied by the pushing mechanism in the drum box, and then, the pushing force is transmitted to the developing housing 1 through the bracket 8. Finally, the developing roller 21 rotatably arranged in the developing housing 1 maintains contact with the photosensitive drum in the drum box.

[0219] Similarly, the forced pushing mechanism 14 in this embodiment also includes a left forced pushing member 14L and a right forced pushing member 14R, wherein the left forced pushing member 14L is the same as that in Example 4, and the right forced pushing member 14R can be regarded as a force-bearing part 84, that is, the right forced pushing member 14R in this embodiment is arranged on the bracket 8, so that the structures of the bottom shell 1t and the surface cover 1s can be simplified.

[0220] In some embodiments, after receiving the forced thrust, the force-bearing portion 84 may also directly abut against the developing housing 1 . In this structure, the structural strength requirement of the bracket 8 may be reduced.

[0221] In some embodiments, the bracket 8 also includes a sealing portion 83 for sealing the replenishment port 15. In this way, when the bracket 8 is installed to the developing housing 1, the replenishment port 15 can be sealed by the sealing portion 83. Therefore, there is no need to separately set a sealing member for sealing the replenishment port 15. It is feasible that the sealing portion 83 can be set at any position of the bracket 8 as long as the replenishment port 15 can be sealed by the sealing portion 83.

[0222] In some embodiments, when a seal for sealing the replenishing port 15 is separately provided in the developing box 100, the sealing portion 83 will contact the seal, so that the bracket 8 can be positioned more stably, and accordingly, the right forced pusher 14R is also further positioned and is not easy to shake.

[0223] Furthermore, in this structure, when the force-bearing portion 84 receives the forced pushing force, the forced pushing force can also be transmitted through the sealing portion 83 and the abutment with the shell forming the replenishment port 15. In this way, the forced pushing force transmitted to the developing roller 21 through the supporting portion 81 can be reduced, which is beneficial to prevent the forced pushing force from being too large, causing the developing roller 21 to move relative to the developing shell 1, and then causing the carbon powder to leak from between the developing roller 21 and the developing shell 1.

[0224] In some embodiments, when the replenishing port 15 is provided at the driving end, the left forced pusher 14L may be provided on a sealing member for sealing the replenishing port 15 , and correspondingly, the right forced pusher 14R is provided on the face cover 1s.

[0225] [Example 6]

[0226] Based on the inventive concept of the above-mentioned embodiment, this embodiment continues to describe the structure of the powder discharge knife 7. As shown in Figure 12, the knife holder 71 in this embodiment includes a first part 711 and a second part 712 connected to each other, and the blade 72 includes a pressing part 721 and an extension part 722 connected to each other, wherein the pressing part 721 is used to contact the surface of the developing roller 21, and the pressing part 721 is connected to the first part 711, or in other words, the pressing part 721 is fixedly mounted on the first part 711, and the extension part 722 is located at the fourth end 72b.

[0227] As shown in Figure 13, the first part 711 and the second part 712 are not parallel to each other. Therefore, a bending portion 713 will be formed between the first part 711 and the second part 712, and the overall strength of the tool holder 71 can be improved. When viewed along the first direction, the bending portion 713 is outside the projection range of the driving force receiving member 3, or in other words, the projection of the driving force receiving member 3 does not pass through the bending portion 713. This structural design can reduce the impact of the vibration of the driving force receiving member 3 on the bending portion 713, so that during the development process of the developing box 100, the powder discharge knife 7 can be more stable.

[0228] The first part 711 and the second part 712 are "L"-shaped. When viewed along the first direction, the edge of the knife holder 71 will form a surface M that is perpendicular to the rotation axis L2 of the first driving force receiving member 3 / the first transmission member 61. The surface M is square or rectangular as a whole, and the rotation axis L2 does not pass through the surface M, or in other words, the rotation axis L2 is located outside the surface M. Such a setting is conducive to reducing the impact of the vibration generated by the first driving force receiving member 3 during operation on the powder discharge knife 7 / knife holder 71, so that the powder discharge knife 7 can be more stably fixed on the developer housing 1.

[0229] In some embodiments, along the first direction, the first driving force receiving member 3 and / or the first transmission member 61 do not pass through the bending portion 713, that is, the projection of the first driving force receiving member 3 and / or the projection of the second transmission member 61 do not overlap with the projection of the bending portion 713 in the first direction, which can further reduce the impact of the vibration generated when the first driving force receiving member 3 is working on the powder outlet knife 7 / knife holder 71.

[0230] In some embodiments, as shown in FIG. 13 , along the second direction, the second portion 712 is closer to the rotation axis L2 than the first portion 711 . In other embodiments, along the second direction, the second portion 712 may be further away from the axis L2 than the first portion 711 .

[0231] Furthermore, the extension portion 722 is extended from the pressing portion 721. Specifically, the extension portion 722 extends from the end of the pressing portion 721 (refer to the above-mentioned orientation, specifically the lower end of the pressing portion 721). The setting of the extension portion 722 is beneficial to improving the strength of the blade 72. When observed along the first direction, the angle β formed between the extension direction of the pressing portion 721 and the extension direction of the extension portion 722 is greater than 90°. This can reduce the force that the production equipment needs to apply when making a powder knife, thereby reducing the energy consumption of the production equipment and reducing costs.

[0232] In FIG. 13 , the extension length of the extension portion 722 does not exceed 3 mm, and is preferably 0.5 mm to 2 mm.

[0233] Furthermore, when viewed along the first direction, the blade 72 forms a contact portion P for contacting the surface of the developing roller 21, and the pressing portion 721 has an end surface 723 facing upstream in the rotation direction r of the developing roller (below the contact portion P in Figure 13), and the end surface 723 extends from the contact portion P in a direction away from the developing roller 21, and the surface N is a section passing through the contact portion P, and the angle α formed between the end surface 723 and the section N is less than 90°.

[0234] [Example 7]

[0235] In this embodiment, as shown in Figure 14, the second part 712 in the tool holder 71 is cancelled, so the tool holder 71 will only be provided with the first part 711. Overall, the tool holder 71 is no longer L-shaped, but preferably I-shaped. The I-shaped design of the tool holder 71 can also reduce the production steps and production process of the powder knife, thereby reducing costs.

[0236] In order to improve the strength of the knife holder 71, the powder knife 7 involved in this embodiment also includes at least one auxiliary mounting portion 75 arranged on the first part 711. Accordingly, the developing housing 1 is provided with a coupling portion 1j corresponding to the auxiliary mounting portion 75. In addition to being mounted to the developing housing 1 through the above-mentioned mounting portion 73, the powder knife 7 is also mounted to the developing housing 1 through the combination of the auxiliary mounting portion 75 and the coupling portion 1j. Along the first direction, the auxiliary mounting portion 75 is located between the two mounting portions 73.

[0237] In some embodiments, the auxiliary mounting portion 75 can be configured as an auxiliary mounting hole, and the coupling portion 1j can be configured as a coupling hole, so that the powder knife 7 can be more stably fixed by screws passing through the auxiliary mounting hole 75 and the coupling hole 1j.

[0238] In some embodiments, the auxiliary mounting portion 75 is still configured as an auxiliary mounting hole, and the coupling portion 1j is configured as a coupling protrusion. In this structure, screws are not required, but the powder knife 7 is more stably fixed by coupling the coupling protrusion 1j with the auxiliary mounting hole 75. On the contrary, the auxiliary mounting portion 75 can also be configured as a coupling protrusion, and the coupling portion 1j is configured as a coupling hole. Similarly, the powder knife 7 can be more stably fixed by coupling the coupling protrusion with the coupling hole.

[0239] Preferably, along the first direction, a plurality of auxiliary mounting portions 75 are arranged on the tool holder 71 at intervals.

[0240] [Embodiment 8]

[0241] As shown in FIG15 and FIG16 , the powder discharge knife 7 in this embodiment also does not include the second portion 712 . Similarly, in order to enhance the strength of the knife holder 71 , the powder discharge knife 7 in this embodiment also includes a reinforcing member 76 mounted on the knife holder 71 .

[0242] In some embodiments, the reinforcement member 76 and the blade 72 are mounted together on the same side of the blade holder 71 / first portion 711 .

[0243] In some embodiments, as shown in FIG15 , the reinforcement 76 is continuously arranged along the first direction. On the premise of ensuring the strength of the tool holder 71 , the reinforcement 76 can also be intermittently arranged along the first direction, that is, a plurality of reinforcements 76 are arranged on the tool holder 71 along the first direction.

[0244] In some embodiments, multiple reinforcements 76 can also be arranged along the width direction (third direction) of the tool holder 71. As shown in Figure 16, two reinforcements 76 are arranged at intervals along the width direction. Optionally, the two reinforcements 76 can also be connected to each other in the width direction.

[0245] [Example 9]

[0246] In this embodiment, as shown in Figure 17, the detection member 32 is configured to slide along the second direction along the slide groove 113. Under the action of the reset member 34, the detection member 32 reciprocates along the second direction in the slide groove 113. During the movement of the detection member 32, the device-side detection member 90 interacts with the detection member 32.

[0247] During the installation process of the developing box 100, in order to prevent the detection member 32 from interfering with the device-side detection member 90, preferably, along the second direction, the detection member 32 does not overlap with the device-side detection member 90. At this time, the developing box 100 is located in the first position, and the detection device 30 / detection member 32 and the device-side detection member 90 cannot interact with each other. Specifically, as shown in Figure 19A, along the first direction, the detection device 30 / detection member 32 is located on the right side of the device-side detection member 90, and when viewed along the second direction, the two do not overlap.

[0248] As shown in Figure 18, along the first direction, a device right side plate 91 is provided on at least the right side of the mounting cavity Q of the imaging device, and along the second direction, the device right side plate 91 extends in a non-straight line. Specifically, the device right side plate 91 includes a first extension portion 911 and a second extension portion 912 connected to each other. Along the first direction, the first extension portion 911 is farther away from the left side of the imaging device than the second extension portion 912, or in other words, the second extension portion 912 protrudes toward the mounting cavity Q relative to the first extension portion 911. The mounting cavity Q is used to accommodate the developer box 100 or to accommodate a combination of the developer box 100 and the drum box (processing box); more specifically, the second extension portion 912 extends obliquely from the first extension portion 911 toward the mounting cavity Q, and thus the second extension portion 912 (an embodiment of the acted upon member) has an inclined surface 912a facing the mounting cavity Q.

[0249] The developing cartridge 100 further includes an abutting member (an embodiment of an acting member) 17 for abutting against the inclined surface 912a. The abutting member 17 protrudes from the right side wall 1b to form a protrusion. As shown in Figures 19A and 19B, during the process of installing the developing cartridge 100 forward along the second direction, the abutting member 17 gradually begins to abut against the inclined surface 912a. Along the first direction, the developing cartridge 100 as a whole begins to move leftward, and accordingly, the detecting device 30 / detecting member 32 also moves leftward. When the developing cartridge 100 reaches the predetermined installation position, the developing cartridge 100 is The box 100 will be in the second position shown in Figure 19B, and the detection device 30 / detection member 32 can interact with the equipment-side detection member 90. Along the first direction, the detection device 30 / detection member 32 is located to the left of at least a portion of the equipment-side detection member 90. When observed along the second direction, at least a portion of the equipment-side detection member 90 overlaps with the detection device 30 / detection member 32. At this time, according to the detection requirements of the equipment-side detection member 90, the detection device 30 / detection member 32 can be in contact with the equipment-side detection member 90 or be spaced apart from each other.

[0250] When the first driving force receiving member 3 receives the driving force and starts to rotate, the detection member 32 starts to move forward in the second direction through the driving force transmission component 6. As shown in FIG19C , the detection member 32 forces the device side detection member 90 to move, and the reset member 34 undergoes elastic deformation. Subsequently, under the action of the elastic force released by the reset member 34, the detection member 32 is reset.

[0251] The detection member 32 in this embodiment no longer moves along the first direction, but as the developing box 100 is installed, the developing box 100 as a whole moves along the first direction (to the left) from the first position to the second position. When the developing box 100 reaches the second position, the abutment member 17 maintains abutment with the inclined surface 912a, and the developing box 100 remains in the second position. As a result, the detection member 32 reaches a position where it can interact with the device-side detection member 90. The structure of the detection device 30 can be simplified, and there is no need to provide a spiral protrusion in the developing box 100 for moving the detection member 32 along the first direction.

[0252] In some embodiments, the abutment member 17 may also be configured to extend from the driving end to the conductive end and protrude rightward from the right side wall 1 b . This approach is beneficial for enhancing the strength of the abutment member 17 .

[0253] In some embodiments, the detection device 30 may also be provided at the conductive end. In this case, the abutment member 17 is formed to protrude to the left from the left side wall 1a. Accordingly, the right side plate 91 of the device / the inclined surface 912a is provided on the left side of the imaging device. Along the first direction, the second extension portion 912 is closer to the right side of the imaging device than the first extension portion 911. In other words, along the first direction, the second extension portion 912 protrudes toward the mounting cavity Q of the imaging device relative to the first extension portion 911. Through the abutment of the abutment member 17 and the inclined surface 912a, the developing cartridge 100 as a whole moves from the left (first position) to the right (second position) along the first direction. Thus, Along the first direction, the position where the abutment member 17 and the inclined surface 912a abut / interact with each other and the position where the detection member 32 and the device-side detection member 90 abut / interact with each other are opposite. For example, in the above description, the abutment member 17 and the inclined surface 912a abut / interact with each other on the right side of the developing box 100, and the detection member 32 and the device-side detection member 90 abut / interact with each other on the left side of the developing box 100, or, the abutment member 17 and the inclined surface 912a abut / interact with each other on the left side of the developing box 100, and the detection member 32 and the device-side detection member 90 abut / interact with each other on the right side of the developing box 100.

[0254] In some embodiments, the abutment 17 can also be set to be movable relative to the developing housing 1. During the installation process of the developing box 100, the abutment 17 does not abut against the inclined surface 912a. When the developing box 100 reaches the predetermined installation position, the abutment 17 moves relative to the developing housing 1 under the action of external force. At the same time, the abutment 17 abuts against the inclined surface 912a, thereby forcing the developing box 100 as a whole to move from the first position to the second position along the first direction; the external force forcing the abutment 17 to move relative to the developing housing 1 can come from the force of the user grasping the handle 12, and a control mechanism can also be set in the developing box, which is controlled by the force applied by the user's hand or the inner wall of the imaging device, thereby controlling the abutment 17 to be stationary or movable relative to the developing housing 1.

[0255] In some embodiments, the first driving force receiving member 3 can also be configured to be movable relative to the developing housing 1. In this way, when the first driving force receiving member 3 and the device-side driving force output member 93 in the imaging device (as shown in Figure 20) are in a state of mutual combination, even if the developing box 100 moves as a whole along the first direction, the first driving force receiving member 3 and the device-side driving force output member 93 can also remain in a stably combined state, so that the first driving force receiving member 3 can stably receive the driving force; the first driving force receiving member 3 can move relative to the developing housing 1 along the first direction, or move relative to the developing housing 1 along a direction intersecting with the first direction, or can have the aforementioned two movements.

[0256] [Example 10]

[0257] According to the different structures of the right side plate 91 of the imaging device, this embodiment provides another adapted abutment member 17. As shown in FIG20 , the right side plate 91 of the device is a straight plate extending along the second direction, but the right side plate 91 of the device is provided with a protrusion (another embodiment of the abutment member) 914 protruding toward the accommodating cavity Q; the detection device 30 / detection member 32 is a detection protrusion protruding from at least one of the end cover 11 and the developer housing 1, and the detection protrusion is further provided with a detection surface 30a for abutting / interacting with the device-side detection member 90. Preferably, the detection protrusion is fixed relative to the developer housing 1.

[0258] As shown in Figure 21, the abutment 17 in this embodiment is configured to be movable relative to the developing housing 1. Specifically, the abutment 17 is configured to be a rotating body rotatable relative to the developing housing 1. The driving force transmission assembly 6 also includes a seventh transmission member 67 and an eighth transmission member 68. The abutment 17 is connected to the eighth transmission member 68, and the abutment 17 can also be driven by the eighth transmission member 68. In some deformable ways, the seventh transmission member 67 and the eighth transmission member 68 in the driving force transmission assembly 6 can be reduced to one, or other transmission members can be continued to be added, as long as the driving force transmission assembly 6 can allow the abutment 17 to abut / interact with the protrusion 914 to move the developing box 100 as a whole from the first position to the second position.

[0259] The abutting member 17 is provided with an abutting protrusion 171 which can rotate along with the eighth transmission member 68, and the abutting protrusion 171 has at least an abutting surface 172. Preferably, the abutting protrusion 17 has an abutting surface 172 and a retaining surface 173 which are adjacently arranged, and the abutting surface 173 is provided as an inclined surface or a spiral surface. As shown in FIG22 , when the developing cartridge 100 reaches the predetermined installation position of the imaging device / accommodating chamber Q, the abutting protrusion 171 and the convex block 914 are in contact with each other, or spaced apart from each other, and the detection surface 30 a and the device-side detection member 90 are also in contact with each other, or spaced apart from each other. As shown in FIG23 , as the first driving force receiving member 3 receives the driving force from the device side The driving force output by the output member 93 begins to rotate, and under the action of the eighth transmission member 68, the abutment member 17 begins to move (specifically rotate), and the abutment surface 172 begins to abut against the protrusion 914, and the developing box 100 as a whole moves from the first position to the second position, that is, the developing box 100 as a whole moves to the left along the first direction. During the movement of the developing box 100, the detection member 32 / detection surface 30a abuts / interacts with the device side detection member 90. When the detection is completed, the retaining surface 173 of the abutment member 17 remains in abutment with the protrusion 914, and the developing box 100 remains in the second position. At this time, the abutment member 17 is no longer driven and remains stationary.

[0260] As described above, when the detection device 30 completes the detection, the abutment 17 no longer receives the driving force and remains stationary, that is, the driving force transmission between the first driving force receiving member 3 / driving force transmission component 6 and the abutment 17 is interrupted. The driving force is interrupted in a manner, for example, that is, the driving force transmission inside the driving force transmission component 6 is interrupted, or that the driving force transmission between the driving force transmission component 6 and the abutment 17 is interrupted. Specifically, the eighth transmission member 68 or the seventh transmission member 67 is set as a toothless gear, and the toothless portion of the toothless gear is used to realize the interruption of the driving force transmission.

[0261] [Example 11]

[0262] In the above embodiment, the detection device 30 is configured as a detection protrusion that can abut / interact with the device-side detection member 90. In some embodiments, the detection device 30 can also be configured as a chip component 16 for establishing a communication connection with the imaging device. The chip component 16 is electrically contacted with the contact pin in the imaging device. As shown in Figure 24, the detection device 30 / chip component 16 includes a mounting frame (also called a chip frame) 161 and a chip 162. The chip 162 includes a substrate 1621 and an electrical contact portion 1622. At least the electrical contact portion 1622 is supported by the mounting frame 161. Preferably, the electrical contact portion 1622 is provided on the substrate 1621, and the substrate 1621 is fixedly provided on the mounting frame 161. That is to say, the chip 162 / electrical contact portion 1622 is fixedly provided relative to the developing housing 1. The chip 162 / electrical contact portion 1622 can move with the developing housing 1, thereby realizing electrical contact between the electrical contact portion 1622 and the contact pin. At the same time, this structural design is also conducive to simplifying the structure of the chip component.

[0263] Similarly, the mounting seat CA2 can be set on at least one of the end cover 11 and the developing shell 1. Based on the inventive concept of the present utility model, the chip assembly 16 / chip 162 / electrical contact portion 1622 can move from the first position to the second position as a whole along with the developing box 100. When the developing box 100 reaches the second position, the electrical contact portion 1622 is in electrical contact with the contact pin. Therefore, the chip assembly 16 / chip 162 / electrical contact portion 1622 can be regarded as the detection part of this embodiment, and the contact pin can be regarded as the detected part of this embodiment. The electrical contact between the electrical contact portion 1622 and the contact pin is a way for the detection part and the detected part to interact with each other.

[0264] As shown in Figure 25, the abutment member 17 in this embodiment is formed by protruding to the right from the right side wall 1b. As shown in Figure 26, the imaging device also includes a guide rail 92 arranged adjacent to the mounting cavity Q. The guide rail 92 is located on the left and / or right side of the mounting cavity Q and is used to guide the developing box 100 or the combination of the developing box 100 and the drum box 200. The guide rail 92 is provided with a guiding slope 921.

[0265] The developing box 100 is installed to the drum box 200 to form a processing box, and the processing box is installed forward along the second direction to the imaging device. During the installation of the processing box, the abutment 17 gradually abuts against the guide slope 921, so that the developing box 100 is gradually lifted along the third direction until the developing box 100 / processing box reaches the predetermined installation position of the imaging device. At this time, the electrical contact part 822 is in electrical contact with the contact pin.

[0266] It can be seen that under the interaction of the abutment 17 as the active member and the guide rail 92 / guide slope 921 as the passive member, the developer box 100 in this embodiment can also move from the first position to the second position. In the first position, the detection device 30 / electrical contact portion 822 and the contact pin cannot interact with each other, and in the second position, the detection device 30 / electrical contact portion 822 and the contact pin can interact with each other. In this design, the mounting seat CA2 can be fixed relative to the end cover 11 or the developer housing 1, and its overall structure can be simplified. Accordingly, the structure of the chip assembly 16 can also be simplified.

[0267] As described above, through the interaction between the detection member 32 and the device-side detection member 90, the parameter information of the developing box 100 can be known by the imaging device, and through the electrical contact between the electrical contact portion 1622 and the contact pin, the developing box 100 / chip 162 / electrical contact portion 1622 establishes a communication connection with the imaging device, and the parameter information of the developing box 100 stored in the chip 162 can also be known by the imaging device. Therefore, the electrical contact portion 1622 in this embodiment can also be regarded as a detection member, and the contact pin can also be regarded as a detected member.

[0268] In the first position, the detecting member and the detected member cannot interact with each other, which means that the detecting member cannot contact the detected member, or even if the first driving force receiving member 3 receives the driving force, the detecting member will not interact with the detected member, and the parameter information of the developing box 100 cannot be obtained by the imaging device; in the second position, the detecting member and the detected member can interact with each other, which means that the detecting member is in direct contact with the detected member, and when the first driving force receiving member 3 receives the driving force, the detecting member directly forces the detected member to complete a predetermined movement, or, the detecting member is not in direct contact with the detected member, and when the first driving force receiving member 3 receives the driving force, the detecting member moves and contacts the detected member, thereby forcing the detected member to complete a predetermined movement, or, the detecting member is in electrical contact with the detected member, and finally, the parameter information of the developing box 100 is obtained by the imaging device.

[0269] In the above embodiment, when the abutment 17 abuts against the guide slope 921, only the developing box 100 moves upward along the third direction. However, this method may cause the developing roller 21 and the photosensitive drum to separate from each other, thereby affecting the imaging quality. In an improved embodiment, the abutment 17 is still arranged in the developing box 100. At the same time, the developing box 100 is restricted in the drum box 200 by a limiting mechanism. In this way, when the abutment 17 abuts against the guide slope 921, the developing box 100 and the drum box 200 can move upward along the third direction together, and the relative positions of the developing roller 21 and the photosensitive drum will not change, which is conducive to maintaining stable imaging quality.

[0270] In some embodiments, the abutment 17 can also be provided on the drum box 200. As the processing box is installed, the abutment 17 abuts against the guide slope 921. Along the third direction, the processing box as a whole is gradually lifted, and the electrical contact portion 822 located in the developing box 100 also moves upward along the third direction. Finally, the electrical contact portion 822 is in electrical contact with the contact pin. This structure is also conducive to maintaining stable imaging quality.

[0271] As shown in Figure 25, the right forced pusher 14R is arranged on the sealing part 83. This design is conducive to simplifying the structure of the developing shell 1 or the bracket 8, and the right forced pusher 14R can also serve as an operating part for the user to operate the sealing part 83. Compared with the sheet-like operating part set on the sealing part 83, the right forced pusher 14R has a more three-dimensional structure and can be more convenient for users to operate.

[0272] In some embodiments, the right forced push member 14R can also be set on an independent component 1i (as shown in Figure 55B), which is not any of the bracket 8 and the second end cover 18, but the independent component 1i can be set to have other functions according to the design requirements of the developing box 100, for example, a part of the detection device 4 is supported by the independent component.

[0273] As shown in Figure 55B, along the first direction, the replenishing port 15 is arranged on the same side as the detection part 41, along the third direction, the replenishing port 15 does not overlap with the detection part 41, and along the second direction, the replenishing port 15 is located in front of the independent component 1i. This design can ensure that the replenishing port 15 is directly exposed, so that the user does not have to disassemble the parts of the developing box to replenish toner into the cavity 10, and can also reduce the size of the independent component 1i in the front-to-back direction, thereby reducing the cost of the independent component 1i and improving the strength of the independent component 1i. Preferably, along the third direction, a portion of the independent component 1i overlaps with the detection part 41.

[0274] [Example 12]

[0275] As shown in Figures 27 and 28, the abutment / action member 17 in this embodiment is a magnetic member arranged in the developer box 100, and the action member is a metal member / metal plate 94 arranged in the imaging device. By utilizing the magnetic force between the magnetic member 17 and the metal plate / metal plate 94, the developer box 100 as a whole or the processing box as a whole moves from the first position to the second position along the third direction.

[0276] Similarly, in the first position, the electrical contact portion 1622 does not interact with the contact pin (specifically, the two are not in contact and a communication connection cannot be established), and the parameter information of the developer box 100 cannot be known by the imaging device. In the second position, the electrical contact portion 1622 interacts with the contact pin (specifically, the two are in contact and a communication connection is established), and the parameter information of the developer box 100 can be known by the imaging device. It can be seen that the electrical contact portion 1622 in this embodiment can also be regarded as a detection part, and the contact pin can also be regarded as a detected part.

[0277] Depending on the setting position of the contact pin, the process of the developing box 100 as a whole or the processing box as a whole moving from the first position to the second position along the third direction can be that the developing box 100 as a whole or the processing box as a whole moves downward or upward; the magnetic force can be either magnetic attraction or magnetic repulsion, and designers can choose according to product design requirements.

[0278] According to the above-mentioned inventive concept, it can be changed that when the detection member 32 is not arranged on the end cover 11, but is arranged to be movable along with the developing housing 1, during the interaction between the active member and the active member, the end cover 11 does not need to move, but the developing housing 1 moves from the first position to the second position. Similarly, in the first position, the detection member 32 cannot interact with the detected member, and in the second position, the detection member 32 can interact with the detected member.

[0279] For example, the end cover 11 is configured to be movable relative to the developer housing 1. When the developer cartridge 100 is mounted to the drum cartridge or imaging device, the end cover 11 is fixed relative to the drum cartridge or imaging device, and the developer housing 1 is movable relative to the drum cartridge or imaging device.

[0280] Accordingly, in a possible embodiment, the acting member 17 extends from the developing housing 1 and passes through the end cover 11, and the detecting member 32 is directly provided on the developing housing 1, or the detecting member 32 is connected to the developing housing 1 through an intermediate member. As long as the acting member 17 can interact with the acted member, the detecting member 32 can move in response to the movement of the developing housing 1.

[0281] As described above, the end cover 11 is used to allow the first driving force receiving member 3 to be exposed, that is, along the first direction, the end cover 11 and the first driving force receiving member 3 are located on the same side of the developing housing 1. However, according to the inventive concept of the present utility model, along the first direction, the end cover 11 can also be located on both sides of the developing housing 1 respectively with the first driving force receiving member 3.

[0282] [Example 13]

[0283] Based on the inventive concept of the above embodiment, the present embodiment continues to optimize the structure of the chip assembly 16. Therefore, the same components as the above embodiment will be directly referenced. As shown in Figure 29, the chip assembly 16 involved in the present embodiment includes a chip frame 31 and a chip 162. The chip 162 has an electrical contact portion 1622 for electrically connecting / contacting the contact pin 403 in the imaging device, and at least the electrical contact portion 1622 is supported by the chip frame 31; further, the chip 162 also includes a substrate 1621. The electrical contact portion 1622 can be set on the substrate 1621 or separately from the substrate 1621. The following description will be made using the example of the electrical contact portion 1622 being set on the substrate 1621.

[0284] Continuing with FIG29 , the chip holder 31 includes a first component 311 and a second component 312. Along the third direction, at least a portion of the first component 311 is located above the second component 312. The electrical contact portion 1622 is supported by the first component 311. The electrical contact portion 1622 may be supported directly or indirectly by the first component 311. The first component 311 is configured to be immovable relative to the developer housing 1, while the second component 312 is configured to be movable relative to the developer housing 1. That is, the first component 311 is fixed relative to the developer housing 1, while the second component 312 is movable relative to the housing. The first component 311 is directly or indirectly connected to the developer housing 1. For example, the first component 311 may extend directly from the developer housing 1, or may extend from a component fixedly connected to the developer housing 1 (e.g., the end cap 11). In this case, the first component 311 will be fixed relative to the developer housing 1 as the component is fixedly connected to the developer housing 1.

[0285] As shown in Figures 30A and 30B, the chip component mounting portion 401 in the imaging device includes a first side wall 401a of the device, an upper wall 401b of the device and a lower wall 401c of the device. The first side wall 401a of the device, the upper wall 401b of the device and the lower wall 401c of the device together form a accommodating space 4011 that can accommodate the chip component 16; further, the chip component mounting portion 401 also includes a second side wall 401d of the device connected to the lower wall 401c of the device, the first side wall 401a of the device and the second side wall 401d of the device are arranged relative to each other along a first direction, the upper wall 401b of the device and the lower wall 401c of the device are arranged relative to each other along a third direction, and the contact pin 403 is arranged on the upper wall 401b of the device.

[0286] In the direction from back to front, the upper wall 401b of the device is sequentially provided with an upper front wall 401ba, an upper middle wall 401bb and an upper rear wall 401bc, and the second side wall 401d of the device is sequentially provided with a lower front wall 401d1 and a lower rear wall 401d2. Along the third direction, the lower rear wall 401d2 is closer to the upper wall 401b of the device than the lower front wall 401d1. The upper wall 401b of the device has an upper wall bottom surface 401b1 facing the accommodating space 4011. According to the shape change of the upper wall 401b of the device, the distance from the upper wall bottom surface 401b1 to the lower wall 401c of the device also changes along the third direction. As shown in FIG30C , the distance from the upper front wall 401ba to the lower wall 401c of the device is The distance from the upper front wall 401ba to the lower wall 401c of the device is h1, the distance from the upper middle wall 401bb to the lower wall 401c of the device is h2, and the distance from the upper rear wall 401bc to the lower wall 401c of the device is h3, satisfying h1>h2, h3>h2, that is, along the installation direction of the developer box 100 (from the back to the front), the size of a part of the accommodating space 4011 in the third direction first decreases and then increases.

[0287] Continuing with Figure 30C, the range of the upper front wall 401ba extending in the second direction corresponds to the first area S1 in the third direction, the range of the upper middle wall 401bb extending in the second direction corresponds to the second area S2 in the third direction, and the range of the upper rear wall 401bc extending in the second direction corresponds to the third area S3 in the third direction. According to the above description, the height of the first area S1 in the third direction is h1, the height of the second area S2 in the third direction is h2, and the height of the third area S3 in the third direction is h3.

[0288] In this embodiment, at least a portion of the second component 312 itself can be made of elastic material, or an elastic member is provided between the second component 312 and the first component 311, so that the second component 312 can move relative to the developing housing 1 under the action of external force.

[0289] Further, as shown in Figures 24, 25, 26 and 29, the developer box 100 also includes a left guide protrusion 101L and a right guide protrusion 101R. During the installation of the developer box 100 toward the drum box 200, or during the installation of the developer box 100 toward the imaging device, at least one of the left guide protrusion 101L and the right guide protrusion 101R guides the developer box 100 to ensure that the developer box 100 moves along a predetermined installation trajectory; when the developer box 100 is in a state of being installed to the drum box 200, or when the developer box 100 is in a state of being installed to the imaging device, the left guide protrusion 101L and the right guide protrusion 101R respectively cooperate with corresponding installation grooves, which can be set in the drum box 200 or in the imaging device. Finally, the developer box 100 is positioned in the drum box 200 or the imaging device.

[0290] Preferably, along the first direction, the left guide protrusion 101L and the right guide protrusion 101R are respectively located at the two ends of the developing housing 1. Both can be formed on the developing housing 1 or on the end covers respectively located at the two ends of the developing housing 1, as long as the formed left guide protrusion 101L and the right guide protrusion 101R can play the above-mentioned guiding and positioning role.

[0291] The installation process of the developing cartridge 100 is described below with reference to Figures 31A, 31B, and 31C. In one embodiment, the developing cartridge 100 is first installed to the drum cartridge 200, and the combination of the developing cartridge 100 and the drum cartridge 200 (processing cartridge) is then detachably installed to the imaging device.

[0292] As shown in FIG31A , when the processing cartridge is initially installed in the imaging device, the door cover PM1 is not closed yet, the chip assembly 16 is located in the first area S1, and the second component 312 abuts against the lower front wall 401d1. At this time, the second component 312 can be in an elastically deformed state or in a natural state. As the processing cartridge continues to be installed forward along the second direction, as shown in FIG31B , the chip assembly 16 reaches the second area S2. Since h2 is less than h1, at this time, the second component 312 begins to elastically deform, or the second component 312 presses upward the elastic member located between the first component 311 and the second component 312. In general, the second component 312 is in a natural state. 12 moves upward relative to the developing housing 1; as shown in Figure 31C, the chip assembly 16 reaches the third area S3, and since h2 is smaller than h3, under the action of the elastic force released by the second component 312, or under the action of the elastic force released by the elastic member between the second component 312 and the first component 311, the developing box 100 begins to rotate around the left guide protrusion 101L and the right guide protrusion 101R, and the chip assembly 16 moves upward. Finally, the electrical contact portion 1622 contacts the contact pin 403. Under the action of the elastic force, the electrical contact portion 1622 and the contact pin 403 remain in contact. Preferably, the rotation angle of the developing box 100 is in the range of 0°-20°, preferably 5°-15°.

[0293] Preferably, under the action of the elastic force, the rotation axis of the developing cartridge 100 coincides with the rotation axis L1 of the developing roller 21 .

[0294] Both the elastic force released by the second component 312 and the elastic force released by the elastic member between the second component 312 and the first component 311 can be regarded as an embodiment of the lifting force, and the lifting force is generated when the second component 312 moves relative to the developing housing 1.

[0295] As shown in Figure 31C, when the chip assembly 16 reaches the third area S3, the second component 312 can also abut against the lower rear wall 401d2, so that the first component 311 can receive a greater elastic force, and the developer box 100 can be held more stably. Accordingly, the electrical contact portion 1622 and the contact pin 403 can be more stably maintained in a contact state.

[0296] In some embodiments, the elastic force can also lift the entire process box upward, thereby achieving contact between the electrical contact portion 1622 and the contact pin 403.

[0297] In some embodiments, the axis about which the developing cartridge rotates about the left and right guide protrusions 101L and 101R coincides with the rotation axis of the developing roller.

[0298] In some embodiments, when the elastic force lifts the entire process cartridge upward, the process cartridge rotates around the left guide protrusion 101L and the right guide protrusion 101R, thereby achieving contact between the electrical contact portion 1622 and the contact pin 403 .

[0299] In some embodiments, the elastic force can also lift the drum box 200 upward, and then the drum box 200 drives the developer box 100 to move upward, thereby achieving contact between the electrical contact portion 1622 and the contact pin 403.

[0300] (Position of electrical contacts)

[0301] As shown in Figures 31A, 31B and 31C, in some embodiments, a plane passing through the rotation axis L3 of the first driving force receiving member 3 along a direction parallel to the second direction is X, and plane X does not pass through the electrical contact portion 1622. This structure can reduce the influence of the vibration generated when the first driving force receiving member 3 rotates on the contact between the electrical contact portion 1622 and the contact pin 403; preferably, plane X passes through the first component 311. As mentioned above, since the first component 311 is fixedly arranged relative to the developing housing 1, the influence of the vibration generated by the first driving force receiving member 3 on the first component 311 can be reduced.

[0302] As shown in Figure 33, along the direction parallel to the second direction, the plane passing through the rotation axis L1 of the developing roller 21 is Y, and plane Y is located below plane X. At the same time, the plane passing through the rotation axis L1 and the rotation axis L2 is T, and a first clamping area U1 is formed between plane T and plane Y, and a second clamping area U2 is formed between plane T and plane X. The electrical contact portion 1622 is located in the second clamping area U2. Preferably, the electrical contact portion 1622 is located in the first clamping area U1. This design can reduce the influence of vibration generated when at least one of the first driving force receiving member 3 and the developing roller 21 rotates on the contact between the electrical contact portion 1622 and the contact pin 403.

[0303] In some embodiments, at least a portion of the first component 311 fixed relative to the developing housing 1 is located in the second clamping area U2. This design can also reduce the impact of vibration generated when at least one of the first driving force receiving member 3 and the developing roller 21 rotates on the contact between the electrical contact portion 1622 and the contact pin 403.

[0304] Along the second direction, the minimum distance j1 from the rotation axis L1 of the developing roller 21 to the chip 162 (i.e., the distance from the rotation axis L1 of the developing roller 21 to the front end of the chip 162) is 55mm-59mm, and the minimum distance j2 from the rotation axis L1 of the developing roller 21 to the second component 312 (i.e., the distance from the rotation axis L1 of the developing roller 21 to the front end of the second component 312) is 55mm-79mm. Along the third direction, the maximum distance from the second component 312 to the electrical contact portion 1622 is j3. As mentioned above, the second component 312 is movable relative to the developing housing 1. When the second component 312 is in a natural state, j3 is 33mm. When the electrical contact portion 312 forms electrical contact with the contact pin 403, j3 is 25mm. Therefore, j3 should vary between 25mm-33mm, that is, 25mm≤j3≤33mm.

[0305] Along the second direction, the chip component 16 / electrical contact portion 1622 is located between the forced push protrusion (specifically the left forced push protrusion 14L) and the guide protrusion (specifically the left guide protrusion 101L), wherein the guide protrusion is located in front of the chip component 16 / electrical contact portion 1622, and the forced push protrusion is located behind the chip component 16 / electrical contact portion 1622, which is conducive to ensuring that the chip component 16 / electrical contact portion 1622 is stably supported.

[0306] As shown in Figure 32, the developer box 100 also includes a reinforcing rib 10f extending downward from the developer housing 1 and a protective plate 170 covering the reinforcing rib 10f. The reinforcing rib 10f covered by the protective plate 170 is less likely to be broken; however, in a good usage environment, the protective plate 170 may not be provided. At this time, the reinforcing rib 10f is directly exposed. It can be seen that the protective plate 170 can be regarded as an accessory of the developer box 100 and is connected to the developer housing 1 in a detachable manner. When the user considers it necessary to protect the reinforcing rib 10f, the user can install the protective plate 170 to the developer housing 1. On the contrary, when the user considers it unnecessary to protect the reinforcing rib 10f, the protective plate 170 does not need to be installed, or the user can remove the protective plate 170 from the developer housing 1, so that the developer box 100 has better adaptability.

[0307] As shown in FIG32 , in some embodiments, the protective plate 170 is further provided with an avoidance hole 1701 , which is used to avoid the irradiation of the laser of the equipment, thereby preventing the protective plate 170 from blocking the path of the laser irradiation and affecting the development.

[0308] [Example 14]

[0309] Based on the above inventive concept, this embodiment further provides a structure for achieving contact between the electrical contact portion 1622 and the contact pin 403 .

[0310] First, with reference to Figure 35, the structure of a drum box 200 suitable for the developer box involved in the present invention is described. The drum box 200 includes a drum shell 201, a left support protrusion 203L, a right support protrusion 203R and a drum box locking member 205. A accommodating cavity that can accommodate the developer box 100 is formed in the drum shell 201. The left support protrusion 203L and the right support protrusion 203R are both formed to protrude upward from the bottom plate 202 of the drum shell 201. Along the first direction, the drum box locking member 205 is arranged on one side of the drum shell 201; preferably, the drum box locking member 205 is arranged at the driving end of the drum box 200 to ensure that the developer box 100 can be locked in the drum box 200.

[0311] In some embodiments, the drum box 200 also includes a left pushing mechanism 204L and a right pushing mechanism 204R that are movable relative to the drum shell 201. When the developing box 100 is installed to the drum box 200, the left pushing mechanism 204L pushes the left pushing member 14L, and the right pushing mechanism 204R pushes the right pushing member 14R to ensure that the developing roller 21 and the photosensitive drum maintain good contact.

[0312] In the prior art, when the developing box 100 is installed to the drum housing 201, along the second direction, the front of the developing box 100 is supported by the left guide protrusion 101L and the right guide protrusion 101R at the same time, and the rear of the developing box 100 is supported by the left support protrusion 203L and the right support protrusion 203R at the same time. Along the first direction, the left side of the developing box 100 is supported by the left guide protrusion 101L and the left support protrusion 203L at the same time, and the right side of the developing box 100 is supported by the right guide protrusion 10R and the right support protrusion 203R at the same time. It can be seen that the developing box 100 is supported at four mutually spaced positions at the same time.

[0313] As described above, along the second direction, the left forced pusher 14L and the right forced pusher 14R are both located behind the developer box 100. Therefore, in some embodiments, the left forced pusher 14L and the right forced pusher 14R can also serve as supported parts supported by the left supporting protrusion 203L and the right supporting protrusion 203R, respectively; in some other embodiments, the supported parts can also be components other than the left forced pusher 14L and the right forced pusher 14R, for example, a part of the developer housing 1, a part of the end cover 11, etc.

[0314] As shown in FIG. 34 , the chip assembly 16 in this embodiment no longer has the second component 32 , or in other words, the second component 32 in the chip assembly 16 is formed integrally with the first component 31 .

[0315] Unlike the prior art, the developer cartridge 100 of this embodiment has an unsupported position when it is mounted to the drum casing 201, that is, at this position, there is a preset movable space between the developer cartridge 100 and the drum casing; with the position of the electrical contact portion 1622 as a reference, the unsupported position of the developer cartridge 100 satisfies both the first and second directions, and the developer cartridge 100 is close to one end of the electrical contact portion 1622. For this reason, along the third direction, the size of the right forced pusher 14R is larger than that of the left forced pusher 14L, which is equivalent to the size of the right forced pusher 14 in the third direction being increased. When the developer cartridge 100 is mounted to the drum casing 201, as shown in FIG36A , the right forced pusher 14R will abut against the right supporting protrusion 203R, and as shown in FIG36B , the left forced pusher 14L will be spaced apart from the left supporting protrusion 203L to form a spacing space, that is, the left forced pusher 14L is in a suspended state.

[0316] During the process of installing the processing box involved in this embodiment to the imaging device, when the chip assembly 16 reaches the second area S2, the chip assembly 16 will be abutted by the upper wall 401b of the device, and the developing box 100 as a whole will tend to rotate around the left guide protrusion 101L and the right guide protrusion 101R. Due to the existence of the spacing space, the chip assembly 16 can move downward with the developing shell 1. At this time, the developing box 100 as a whole is twisted around the contact position of the left guide protrusion 101L and the corresponding mounting groove in the drum shell 201, the contact position of the right guide protrusion 101R and the corresponding mounting groove in the drum shell 201, and the abutment position of the right forced pusher 14R and the right support protrusion 203R as the fulcrum. The developing box 100 itself can generate a restoring force (another embodiment of the lifting force) that forces the left forced pusher 14L to move away from the left support protrusion 203L.

[0317] When the chip assembly 16 reaches the third area S3, due to h2<h3, under the action of the restoring force of the developing shell 1 itself, the left forced pusher 14L will move away from each other again with the left support protrusion 203L, thereby driving the chip assembly 16 and the contact pin 403 closer, and the electrical contact part 1622 contacts the contact pin 403.

[0318] In the above description, along the first direction, the electrical contact portion 1622 is located at the driving end of the processing box, and along the second direction, in front of the chip assembly 16 / electrical contact portion 1622, the developing box 100 is supported by the left guide protrusion 101L and the right guide protrusion 101R, and behind the chip assembly 16 / electrical contact portion 1622, only one end of the developing box 100 is supported in the first direction. Specifically, the unsupported end of the developing box 100 (the unsupported position) is closer to the driving end, or in other words, in the developing box 100, along the first direction, the end opposite to the end where the chip assembly 16 / electrical contact portion 1622 is located is supported.

[0319] In some embodiments, along the first direction, when the electrical contact portion 1622 is located at the conductive end of the developing housing 1, along the second direction, in front of the chip assembly 16 / electrical contact portion 1622, the developing box 100 is supported by the left guide protrusion 101L and the right guide protrusion 101R, and behind the chip assembly 16 / electrical contact portion 1622, only one end of the developing box 100 in the first direction is supported. Specifically, the unsupported end of the developing box 100 (the unsupported position) is closer to the conductive end, or in other words, in the developing box 100, along the first direction, the end opposite to the end where the chip assembly 16 / electrical contact portion 1622 is located is supported. Therefore, on the whole, behind the chip assembly 16 / electrical contact portion, along the first direction, the unsupported end of the developing box 100 (the unsupported position) is closer to the end where the electrical contact portion 1622 is located.

[0320] In some embodiments, when the developer box 100 is directly installed to the imaging device, the left support protrusion 203L, the right support protrusion 203R, and the drum box locking member 205 can also be set in the imaging device. Similarly, along the first direction, the unsupported end of the developer box 100 (the unsupported position) is closer to the end where the electrical contact portion 1622 is located.

[0321] [Example 15]

[0322] In the prior art, the drum cartridge locking member 205 has a drum cartridge locking portion 2051, and the developer cartridge 100 further includes a locked portion 102 for abutting against the drum cartridge locking portion 2051, and the locked portion 102 has a locked surface 1021 facing the drum cartridge locking portion 2051. When the developer cartridge 100 is installed to the drum casing 201, the developer cartridge 100 is locked in the drum casing 201 through the abutment between the drum cartridge locking portion 2051 and the locked surface 1021.

[0323] Along the second direction, the chip assembly 16 / electrical contact portion 1622 is located between the locked portion 102 and the guide protrusion (specifically the left guide protrusion 101L), wherein the guide protrusion is located in front of the chip assembly 16 / electrical contact portion 1622, and the locked portion 102 is located behind the chip assembly 16 / electrical contact portion 1622, which is conducive to ensuring that the chip assembly 16 / electrical contact portion 1622 is stably supported.

[0324] As shown in FIG. 37 , this embodiment provides another structure for achieving contact between the electrical contact portion 1622 and the contact pin 403 .

[0325] In this embodiment, when the developing box 100 is installed to the drum casing 201, along the third direction, the locked surface 1021 and the drum box locking portion 2051 no longer abut each other, and a spacing space is formed between the two, and the developing box 100 is supported at four mutually spaced positions at the same time.

[0326] During the process of installing the processing box toward the imaging device, the action member 17 abuts against the guide slope 921, and the action member 17 / developing box 100 is subjected to the reaction force (another implementation of the lifting force) applied by the guide slope 921, and the developing box 100 as a whole rotates around the left guide protrusion 101L and the right guide protrusion 101R. Due to the existence of the spacing space, the developing box 100 will not be interfered with by the drum box locking member 205 when rotating. Finally, the electrical contact portion 1622 forms electrical contact with the contact pin 403.

[0327] Preferably, when the action member 17 begins to abut against the guiding slope 921, the chip assembly 16 has entered the third area S3, which can reduce the installation resistance of the process cartridge.

[0328] In some embodiments, the left forced pusher 14L may also be formed integrally with the locking portion 102 . In this case, the upper surface 14L1 of the left forced pusher 14L serves as the locked surface 1021 .

[0329] [Example 16]

[0330] As shown in Figure 38, the developing box 100 involved in this embodiment also includes a lifting member 103 connected to the developing shell 1, and the locked surface 1021 and the drum box locking portion 2051 no longer abut each other, and a spacing space is formed between the two. Before the processing box is installed on the imaging device, the developing box 100 is supported by at least the left guide protrusion 101L and the right guide protrusion 101R, that is, whether the left supporting protrusion 203L and the left forced pushing member 14L abut, and whether the right supporting protrusion 203R and the right forced pushing member 14R abut do not need to be restricted.

[0331] After the developer box 100 is installed to the drum casing 201, the lifting member 103 abuts against the drum casing 201 or the imaging device (for example: the guide slope 921), and the developer box 100 rotates around the left guide protrusion 101L and the right guide protrusion 101R and is lifted, or, in the process of installing the processing box toward the imaging device, the lifting member 103 abuts against the imaging device (for example: the guide slope 921), and the developer box 100 rotates around the left guide protrusion 101L and the right guide protrusion 101R and is lifted, and finally, the electrical contact portion 1622 forms electrical contact with the contact pin 403.

[0332] In some embodiments, the lifting member 103 is detachably connected to the developing housing 1 , so that the developing housing 1 has wider applicability.

[0333] According to the above description, the lifting member 103 can also be regarded as the above-mentioned acting member 17. When the acting member 17 interacts with the acted member, at least the developing housing 1 moves from the first position to the second position. In the first position, the electrical contact portion 1622 and the contact pin 403 cannot interact with each other. In the second position, the electrical contact portion 1622 and the contact pin 403 can interact with each other.

[0334] In some embodiments, the right forced pushing member 14R with an enlarged size in the third direction in the fourteenth embodiment and the above-mentioned lifting member 103 can also be provided at the same time to further ensure that the developing box 100 is stably supported.

[0335] In the above embodiment, the developing box 100 is configured to rotate around the left guide protrusion 101L and the right guide protrusion 101R, and therefore, the rotation of the left guide protrusion 101L and the right guide protrusion 101R can be regarded as a rotating support part of the developing box 100. Preferably, the rotation axis L1 of the developing roller 21 passes through the left guide protrusion 101L and the right guide protrusion 101R, and more preferably, the rotation axis of the developing box 100 coincides with the rotation axis L1.

[0336] However, according to the above-mentioned inventive concept, the developer box 100 can also rotate around other positions of the developer box. For example, a rotating support part different from the left guide protrusion 101L and the right guide protrusion 101R is provided in the developer box, as long as the electrical contact part 1622 can be electrically contacted with the contact pin 403; the rotating support part does not necessarily have a guiding function, and the number of rotating support parts does not have to be limited. It can be one, the two mentioned above, or more than two.

[0337] It should be understood that, under the inventive concept of this embodiment, when the chip assembly 16 reaches the second area S2 or the third area S3, under the action of external force, the processing box can also move as a whole, that is, the developing box 100 moves together with the drum box 200. During the movement, the electrical contact portion 1622 is still immovable relative to the developing shell 1. Accordingly, a spacing space is formed between the drum shell 201 and the imaging device. Finally, the electrical contact portion 1622 forms electrical contact with the contact pin 403.

[0338] Accordingly, along the first direction, the unsupported end of the developer box 100 and / or the drum box 200 (the unsupported position) is closer to the end where the electrical contact portion 1622 is located (which can be called the movable end). At the movable end, there is a spacing space between the developer box 100 and the drum box 200 that allows the developer box 100 to move, or there is a spacing space between the drum box 200 and the imaging device that allows the drum box 200 to move. Since the developer box 100 is supported by the drum box 200, the developer box 100 can move together with the drum box 200. Ultimately, this design will enable the developer box 100 to move at the movable end.

[0339] In some embodiments, along the third direction, the separation space overlaps with the chip.

[0340] In some embodiments, when the lifting member 103 is provided, a spacing space overlapping with the chip is provided between the developing cartridge and the drum cartridge in the third direction.

[0341] Based on the inventive concept of the present utility model, those skilled in the art may also combine any two or more technical solutions in Examples 13 to 16 to achieve better technical effects.

[0342] [Example 17]

[0343] As shown in Figures 39-42A and 42B, this embodiment focuses on describing the conductive member 5. The power supply portion 52 can also be used to supply the power received by the power receiving portion 51 to the powder discharge knife 7, and then the powder discharge knife 7 supplies the power to the developing roller 21 and / or the powder feeding roller 22. For example, the power supply portion 52 is in direct electrical contact with the powder discharge knife 7. Therefore, the power received by the power receiving portion 51 can be supplied to at least one of the developing roller 21, the powder feeding roller 22 and the powder discharge knife 7, that is, the conductive member 5 / power supply portion 52 supplies the power supplied by the power output member in the imaging device directly or indirectly to the developing roller 21.

[0344] In some embodiments, the conductive member 5 may also supply electricity to the powder feeding roller 22 and the powder discharge knife 7 , and then the powder feeding roller 22 and the powder discharge knife 7 supply electricity to the developing roller 21 .

[0345] The accompanying drawings of this embodiment show a structure in which the power supply unit 52 supplies power to the developing roller 21 and the powder feeding roller 22 at the same time. At this time, the power supply unit 52 includes a developing power supply unit 521 and a powder feeding power supply unit 522, wherein the developing power supply unit 521 is used to supply power to the developing roller 21, and the powder feeding power supply unit 522 is used to supply power to the powder feeding roller 22. Specifically, the developing power supply unit 521 is in contact with the developing roller shaft 212, and the powder feeding power supply unit 522 is in contact with the powder feeding roller shaft 222.

[0346] In practice, the power receiving part 51 in this embodiment can receive power (voltage) output from any one of the first power output element and the second power output element, and supply power to the powder output knife and the powder feeding roller. For example, the power supply part 52 directly contacts the powder output knife and the powder feeding roller, and then the powder output knife 7 and the powder feeding roller 22 supply power to the developing roller 21.

[0347] As shown in Figure 39, along the first direction, the drum casing 201 has a drum box left side plate 2011 and a drum box right side plate 2012 that are spaced apart. The drum box left side plate 2011 has a left side wall facing the left, and the drum box right side plate 2012 has a right side wall 1210R facing the right. When the developing box 100 is installed to the drum box 200, at least a portion of the developing box 100 is located between the drum box left side plate 2011 and the drum box right side plate 2012.

[0348] In some embodiments, the drum box 200 also includes a drum box protrusion 2013 and a power receiving element 125 for receiving power from the imaging device. The drum box protrusion 2013 is formed to protrude to the right from the right side plate 2012 of the drum box, and the power receiving portion 125 is exposed outward through the drum box protrusion 2013. In this way, the power receiving element 125 can receive power from the imaging device and supply it to at least the developing box 100.

[0349] The developing box 100 also includes an end support member 1f arranged on the same side as the conductive member 5, and at least a portion of the conductive member 5 is supported by the end support member 1f. Preferably, the end support member 1f is connected to the developing housing 1, and its specific connection method can be a fixed connection or a movable connection. When observed along the first direction, as shown in Figure 41, at least a portion of the end support member 1f is located outside the outline of the developing housing 1, and at least a portion of the conductive member 5 is also located outside the outline of the developing housing 1.

[0350] Furthermore, the rotation axis L2 of the first driving force receiving member 3 / first transmission member 61 does not pass through the power receiving part 51. In this way, the electrical contact between the power receiving part 51 and the power output member in the imaging device can be less affected by the vibration generated when the first driving force receiving member 3 / first transmission member 61 rotates, and the stability of the electrical contact can be improved.

[0351] Furthermore, the power receiving part 51 is located outside the projection range of the first driving force receiving member 3 in the first direction. This design can also improve the stability of the electrical contact between the power receiving part 51 and the power output member in the imaging device; further, the power receiving part 51 is also located outside the projection range of the first transmission member 61, thereby further improving the stability of the electrical contact between the power receiving part 51 and the power output member in the imaging device.

[0352] In some embodiments, the end support member 1f extends from the right side wall 1b of the shell in a direction away from the developing shell 1, and along the first direction, a portion of the end support member 1f and the developing shell 1 are spaced apart from each other to form a clamping space K to allow a portion of the drum shell 201 to enter; since the conductive member 5 is supported by the end support member 1f, the clamping space K is also located between a portion of the conductive member 5 and the developing shell 1, more specifically, the clamping space K is located between the power receiving portion 51 and the developing shell 1.

[0353] In some embodiments, when the strength of the conductive member 5 meets the design requirements, the end support member 1f can be omitted.

[0354] As shown in Figure 42A, when the developer box 100 is installed to the drum box 200, the right side plate 2012 of the drum box enters the clamping space K, and along the first direction, a portion of the conductive member 5 (for example, the power receiving portion 51) and the developer shell 1 are respectively located on both sides of the right side plate 2012 of the drum box, or in other words, the right side plate 2012 of the drum box is clamped by a portion of the conductive member 5 (for example, the power receiving portion 51) and the developer shell 1. This structure can further improve the installation stability of the developer box 100 in the drum box 200.

[0355] Preferably, when the developer box 100 is installed to the drum box 200, along the first direction, the drum box protrusion 2013 also enters the clamping space K, and compared with the right side plate 2012 of the drum box, the drum box protrusion 2013 is closer to a part of the conductive member 5 (for example, the power receiving part 51), that is, in the first direction, a part of the conductive member 5 (for example, the power receiving part 51) is farther away from the developer housing 1 than the drum box protrusion 2013 / the power receiving part 125, and a part of the conductive member 5 (for example, the power receiving part 51) will be directly electrically contacted with the power output part in the imaging device. In this way, the power receiving part 125 does not need to be provided in the drum box 200, so that the structure of the drum box 200 can be simplified. Furthermore, the drum box 200 also has a wider versatility.

[0356] In some embodiments, the connecting portion 53 is formed by at least one bend, so that the conductive member 5 can not only be installed more stably, but also the developing box 100 / processing box installed with the conductive member 5 can be installed to the imaging device more smoothly, or removed from the imaging device. As shown in Figures 41, 42A and 42B, the connecting portion 53 includes a first sub-portion 531, a second sub-portion 532 and a third sub-portion 533, wherein the first sub-portion 531 is connected to the power supply portion 52, the second sub-portion 532 connects the first sub-portion 531 and the third sub-portion 533, and the third sub-portion 533 is connected to the power receiving portion 51, and the first sub-portion 531 and the second sub-portion 532 are connected to the power receiving portion 51. A bend is formed between the sub-portions 532, and a bend is also formed between the second sub-portion 532 and the third sub-portion 533. Specifically, along the first direction, at least a portion of the first sub-portion 531 is opposite to the developer housing 1, the second sub-portion 532 extends from the first sub-portion 531 in a direction away from the developer housing 1 (to the right), and the third sub-portion 533 extends from the second sub-portion 532 in a direction away from the first sub-portion 531 (downward). When the developer box 100 is installed to the drum box 200, along the second direction, at least a portion of the first sub-portion 531 and at least a portion of the second sub-portion 532 are located behind the right side wall 1210R (drum box protrusion 2013).

[0357] According to the inventive concept of the present invention, the bend included in the connecting portion 53 can also be one or more than two, as long as it can ensure that the conductive part 5 can be stably installed and the developing box 100 / processing box installed with the conductive part 5 can be more smoothly installed in the imaging device.

[0358] As shown in Figure 42B, along the second direction, at least a portion of the connecting portion 53 is located behind the drum box protrusion 2013 / power receiving member 125, so that during the installation of the combination of the developing box 100 and the drum box 200 toward the imaging device, the resistance encountered by the combination from the imaging device can be reduced.

[0359] In some embodiments, the developing box 100 also includes a force receiving member 131. When the imaging device is not developing, the force-applying member in the imaging device applies a separation force to the force receiving member 131, forcing the developing box 100 and the drum box 200 to move relative to each other, thereby separating the developing roller 21 and the photosensitive drum from each other to prevent the developing roller 21 and the photosensitive drum from being damaged due to long-term contact; preferably, along the first direction, the force receiving member 131 extends from at least one of the end cover 11 and the developing housing 1, and the force receiving member 131 extends beyond the conductive member 5, that is, the free end (the rightmost end) of the force receiving member 131 is farther away from the developing housing 1 than the free end (the rightmost end) of the conductive member 5, and thus, the conductive member 5 can be protected by the force receiving member 131.

[0360] [Embodiment 18]

[0361] As shown in Figures 43A, 43B and 44, the present invention also provides a protective cover CS for adapting to the developer box 100. The protective cover CS is detachably mounted on the developer box 100. After the developer box 100 is assembled and before the end user starts to use it, the protective cover CS can effectively protect the components in the developer box 100. For the sake of convenience, when the protective cover CS is installed to the developer box 100, the whole formed by the developer box 100 and the protective cover CS can be referred to as a developer box assembly.

[0362] The protective cover CS includes a cover body CS1, a first side portion CS2, and a second side portion CS3. The cover body CS1 extends along a first direction. The first and second side portions CS1 and CS2 are located on either side of the cover body CS1 along the first direction, forming a protective space B therebetween. Both the first and second side portions CS1 and CS2 extend from the cover body CS1 in a direction intersecting the first direction. When the protective cover CS is mounted on the developer cartridge 100, at least a portion of the developer housing 1 is located within the protective space B. The cover body CS1 protects at least the developer roller 21, while the first and second side portions CS1 and CS2 protect the left and right ends of the developer cartridge 100, respectively.

[0363] In some embodiments, at least one of the first side portion CS1 and the second side portion CS2 is connected to the cover body CS1 through the deformable portion CS4. In this way, through the deformable portion CS4, the user can easily and quickly install and remove the protective cover CS. Specifically, the deformable portion CS4 is formed by cutting off a portion of the side portion or a portion of the cover body CS1.

[0364] The first side portion CS2 is formed with a first protection cavity CS21 open to the protection space B, and the first side portion CS2 also includes a first limiting protrusion CS22 formed in the first protection cavity CS21. The second side portion CS3 is formed with a second protection cavity CS31 open to the protection space B, and the second side portion CS3 also includes a second limiting protrusion CS32 formed in the second protection cavity CS31.

[0365] Along the second direction, the first side portion CS2 extends farther from the cover body CS1 than the second side portion CS3. In this way, the chip assembly 16 disposed at the rear end of the developer cartridge can be protected by the first side portion CS2. As shown in FIG44 , when the protective cover CS is mounted to the developer cartridge 100, a portion of the first side portion CS2 reaches the rear of the chip assembly 16, and a portion of the second side portion CS3 reaches the rear of the force receiving member 131 and the conductive member 5. Along the first direction, at least a portion of the chip assembly 16 enters the first protective cavity CS21, and the mounting frame / chip frame 161 is respectively aligned with the first side portion CS2. The side wall abuts against the first limiting protrusion CS22, at least a portion of the force receiving member 131, at least a portion of the conductive member 5 and at least a portion of the end support member 1f all enter the second protective cavity CS31, the force receiving member 131 abuts against the side wall of the second side portion CS3, and the conductive member 5 will abut against the second limiting protrusion CS32 through the end support member 1f. At the same time, the cover body CS1 is located in front of the developing roller 21. Finally, the developing box 100 and the protective cover CS can be stably combined, and the two will not easily move relative to each other. The various components of the developing box 100 can be effectively protected by the protective cover CS.

[0366] When the terminal support member 1 f is not required, the second limiting protrusion CS32 will abut against the conductive member 5 .

[0367] When the chip assembly 16 is not arranged at the driving end of the developer box 100 but at the conductive end of the developer box 100, or in other words, when the chip assembly 16 is not arranged at the left end of the developer box 100 but at the right end of the developer box 100, along the second direction, the second side portion CS3 will extend farther away from the cover body CS1 than the first side portion CS3, that is, along the second direction, one of the first side portion CS2 and the second side portion CS3 corresponding to the chip assembly will extend farther away from the cover body than the one not corresponding to the chip assembly.

[0368] [Example 19]

[0369] Similar to Example 16, as shown in Figures 45A and 45B, the developer box 100 in this embodiment is also provided with a lifting member 103, which is connected to the developer housing 1 or the end cover 11, and is used to receive a lifting force to force at least the developer box 100 / developer housing 1 in the developer box 100 and the drum box 200 to move from the first position to the second position. When the developer box 100 / developer housing 1 reaches the second position, the chip assembly 16 / electrical contact portion 1622 is in electrical contact with the contact pin 403.

[0370] As shown in Figure 46, the chip component mounting portion 401 in the imaging device PM also includes the above-mentioned device upper wall 401b and device lower wall 401c, the contact pin 403 is arranged on the device upper wall 403, and the door cover PM1 of the imaging device is provided with a lifting protrusion PM2. As the imaging device door cover PM1 is closed, the lifting protrusion PM2 abuts against the lifting member 103, thereby forcing the developing box 100 to rotate around the left guide protrusion 101L and the right guide protrusion 101R. Finally, the electrical contact portion 1622 forms and maintains electrical contact with the contact pin 403.

[0371] In some embodiments, the drum box 200 is also provided with a chip assembly 206. For this purpose, the chip assembly 16 in the developer box 100 can be referred to as a first chip assembly, the electrical contact portion 1622 in the chip assembly 16 can be referred to as a first electrical contact portion, the chip assembly 206 in the drum box 200 can be referred to as a second chip assembly, and the second chip assembly 206 is provided with a second electrical contact portion 2061. Accordingly, the contact pin 403 in the imaging device for forming an electrical contact with the first electrical contact portion 1622 can be referred to as a first contact pin, and the contact pin 404 in the imaging device for forming an electrical contact with the second electrical contact portion 2061 can be referred to as a second contact pin, and the second contact pin 404 is also provided on the upper wall 401b of the device.

[0372] When the lifting member 103 abuts against the lifting protrusion PM2, the developing box 100 may be subjected to force first and then drive the drum box 200 to move from the first position to the second position, or the lifting member 103 may be directly set in the drum box 200. At this time, the drum box 200 will be subjected to force first, and then the drum box 200 drives the developing box 100 to move from the first position to the second position. Finally, the first electrical contact portion 1622 forms electrical contact with the first contact pin 403, and the second electrical contact portion 2061 forms electrical contact with the second contact pin 404.

[0373] As shown in Figure 45C, the lifting member 103 includes a reinforcing portion 1031 and a forced pushing portion 1032 that are interconnected. The forced pushing portion 1032 has a forced pushing surface 1033 for receiving the forced pushing force (a type of external force) applied by the lifting protrusion PM2. The reinforcing portion 1031 has an outer side surface 1034 for connecting with the forced pushing surface 1033. A first angle α1 is formed between the forced pushing surface 1033 and the outer side surface 1034, satisfying 90°≤α1≤100°, preferably 95°. This not only strengthens the structure of the lifting member 103, but also ensures that the forced pushing surface 1033 can smoothly receive the forced pushing force.

[0374] Continuing with Figure 45C, the first plane Y1 passes through the rotation axis L1 of the developing roller 21 and the rotation axis L4 of the powder feeding roller 22, and the second plane Y2 is extended from the forced pushing surface 1032. The first plane Y1 and the second plane Y2 intersect, and a second angle α2 is formed therebetween, satisfying: 90°≤α2≤120°.

[0375] As shown in Figure 45D, the drum shell 201 is provided with a connecting groove 2014. Along the first direction, the connecting groove 2014 connects the accommodating cavity and the outside of the drum box. When the developing box 100 is installed to the drum box 200, along the third direction, at least a portion of the electrical contact portion 1622 is opposite to the connecting groove 2014. It is assumed that the third plane Y3 passes through the electrical contact portion 1622, the fourth plane Y4 passes through the lowest point D of the connecting groove 20124, and the third plane Y3 and the fourth plane Y4 are parallel to each other.

[0376] Before the door cover PM1 of the imaging device is closed, or in other words, before the lifting member 103 receives the lifting force, or in other words, before the developing box 100 is lifted, the minimum distance h5 between the third plane Y3 and the fourth plane Y4 is 30mm-40mm, preferably 36mm; after the door cover PM1 of the imaging device is closed, or in other words, after the lifting member 103 receives the lifting force and is lifted to the predetermined position, or in other words, after the developing box 100 is lifted, the minimum distance h5 between the third plane Y3 and the fourth plane Y4 is 30mm-50mm, preferably 41mm.

[0377] In this embodiment, when the door cover is closed, the rotation angle of the developing box 100 is in the range of 0°-20°, preferably 5°-15°.

[0378] [Example 20]

[0379] The above embodiment describes that the detection device 30 receives the driving force from the first driving force receiving member 3 through the driving force transmission component 6 and interacts with the device-side detection member 90. However, the detection device 30 can also interact with the device-side detection member 90 without receiving the driving force from the first driving force receiving member 3. This embodiment is introduced below. It should be understood that the technical solution described in the above embodiment can also be used in the following embodiments.

[0380] [Processing cartridge]

[0381] The processing box C can be installed in an imaging device provided with a device-side detection member 90 in a detachable manner. The processing box C includes a developer box 100 and a drum box 200 that are detachably combined with each other. In practice, the processing box C can be assembled outside the imaging device and then installed in the imaging device in a detachable manner. The processing box C can also be that the drum box 200 is first installed in the imaging device, and then the developer box 100 is installed toward the drum box 200 / imaging device in a detachable manner. The drum box 200 can also be preset in the imaging device, and the developer box 100 is installed toward the drum box 200 / imaging device in a detachable manner.

[0382] Regardless of how the developing box 100 is installed on the imaging device, the technical solution involved in this embodiment is applicable. The following is an example in which the developing box 100 and the drum box 200 are assembled outside the imaging device to form a processing box C, and the processing box C is then installed on the imaging device in a detachable manner.

[0383] As shown in Figure 47, the drum box 200 includes a drum casing 201 and a photosensitive drum 23 rotatably arranged in the drum casing 201. The photosensitive drum 23 rotates around a rotation axis L2 extending along a first direction by receiving a driving force from a second driving force receiving member 200b arranged in the drum box 200. The second driving force receiving member 200b is coaxially arranged with the photosensitive drum 23 for receiving a driving force from an imaging device. During imaging of the processing box C / drum box 200 / developing box 100, the surface of the photosensitive drum 23 is first charged by a charging member (not shown). After being irradiated by a light beam carrying imaging information, an electrostatic latent image is formed on the surface of the photosensitive drum 23.

[0384] The drum box 200 also includes a developer box accommodating portion 200a formed in the drum shell 201, and the developer box 100 can be detachably mounted to the developer box accommodating portion 200a; to make the following description clearer, the end where the second driving force receiving member 200b is provided is defined as the driving end F, and the end opposite to the driving end F along the first direction is defined as the non-driving end E, that is, the driving end F and the non-driving end E are opposite in the first direction.

[0385] [Developer cartridge]

[0386] As shown in Figures 48 and 49, the developing box 100 also has a first direction, a second direction and a third direction. Specifically, the developing box 100 includes a developing housing 1, a developing roller 21 rotatably arranged in the developing housing 1 and a first driving force receiving member 3. The developing housing 1 is used to accommodate the developer. Along the first direction, the first driving force receiving member 3 is arranged at one end of the developing housing 1 for receiving the driving force from the imaging device. The developing roller 21 rotates around the rotation axis L1 extending along the first direction by receiving the driving force of the first driving force receiving member 3. The developing roller 21 is used to carry the developer and supply the developer to the photosensitive drum 23 to develop the electrostatic latent image.

[0387] Similar to the drum box 200, one end of the first driving force receiving member 3 provided in the developing box 100 is the driving end F, and along the first direction, the end opposite to the driving end F is the non-driving end E, and the developing box 100 is roughly installed and disassembled toward the drum box 200 along the second direction. Along the second direction, the developing roller 21 is located at one end of the developing housing 1.

[0388] [Detection device, driving device and driving source]

[0389] Furthermore, the developing box 100 also includes a detection device 30 for interacting with the device-side detection member 90 in the imaging device. Along the first direction, the detection device 30 and the first driving force receiving member 3 are respectively located at both ends of the developing shell 1, that is, the detection device 30 is not arranged on the same side as the first driving force receiving member 3. In this embodiment, the detection device 30 does not receive the driving force of the first driving force receiving member 3, but receives the driving force of the driving source 50 different from the first driving force receiving member 3 to work. The driving source 50 can be set in the developing box 100 or outside the developing box 100.

[0390] It should be noted that the operation of the detection device 30 refers to the interaction between the detection device 30 and the device-side detection component 90 in the imaging device to meet the detection requirements of the imaging device.

[0391] In this embodiment, the driving source 50 is located outside the developing box 100, as shown in Figure 48. The developing box 100 also includes a driving device 40 combined with the detection device 30. The driving device 40 is located between the driving source 50 and the detection device 30, and is used to transmit the driving force of the driving source 50 to the detection device 30. That is, the detection device 30 receives the driving force from the driving source 50 different from the first driving force receiving member 3 and interacts with the device side detection member 90.

[0392] The detection device 30 can be arranged on the same side as the first driving force receiving member 3, or can be arranged on both sides respectively. However, regardless of whether the detection device 30 is arranged on the same side as the first driving force receiving member 3, the structure of the detection device 30, the structure of the driving device 40, and the structure of the driving source 50 involved in each embodiment of the present invention are applicable. hereinafter, along the first direction, the detection device 30 and the first driving force receiving member 3 are respectively arranged at both ends of the developing shell 1.

[0393] As shown in Figure 49, the driving source 50 in this embodiment comes from the drum box 200. Specifically, the driving source 50 includes a driving force output member 200c rotatably arranged in the drum box. One end of the driving device 40 is combined with the driving force output member 200c, and the other end is combined with the detection device 30.

[0394] In one embodiment, the driving device 40 includes at least one driving force transmission member arranged therein. As shown in the figure, the driving device 40 includes a first driving force transmission member 41, a second driving force transmission member 42 and a third driving force transmission member 43, wherein the first driving force transmission member 41 is used to be combined with the driving force output member 200c to receive the driving force, and the second driving force transmission member 42 is simultaneously combined with the first driving force transmission member 41 and the third driving force transmission member 43 to transmit the driving force to the third driving force transmission member 43, and the third driving force transmission member 43 is used to be combined with the detection device 30 to transmit the driving force to the detection device 30.

[0395] The detection device 30 includes a driving part 31 and a detection part 32 that are combined with each other. The driving part 31 is used to receive a driving force to drive the detection part 32 to interact with the device-side detection part 90. As described in the background technology, the device-side detection part 90 receives external force and swings through a conductive pendulum, so that the detection circuit provided with the device-side detection part 90 is conductive and non-conductive, thereby generating a change in the electrical signal. The changed electrical signal can be detected by the imaging device. For example, the detection part 32 continuously presses the device-side detection part 90, or the detection part 32 intermittently pushes the device-side detection part 90, etc. In some embodiments, the detection part 32 is formed to protrude from the driving part 31, or the detection part 32 is movable relative to the driving part 31. Therefore, the driving part 31 and the detection part 32 can be formed as one piece or separately, as long as the detection part 32 can be driven by the driving part 31 and the detection part 32 can interact with the device-side detection part 90 to complete the detection required by the imaging device.

[0396] Based on the inventive concept, the detection device 30 can receive the driving force of the driving force output member 200c, and the specific transmission methods of the driving force are various. The driving force can be transmitted inside the driving device 40, between the driving device 40 and the driving force output member 200c, and between the driving device 40 and the detection device 30 through the mutual combination of at least any one of the components such as gears, friction wheels, belts, rack belts, ratchets, etc. The friction wheel refers to a circumferential surface that is not provided with protrusions, but its circumferential surface is set to a rough surface, or its circumferential surface is covered with rubber, sponge, etc.

[0397] As shown in Figure 49, the driving force output member 200c is set as a gear, the first driving force transmission member 41 and the second driving force transmission member 42 are both set as gears, and the third driving force transmission member 43 is set as a belt. However, according to the above description, at least one of the first driving force transmission member 41 and the driving force output member 200c can also be set as a friction wheel, or the belt 43 is set between the first driving force transmission member 41 and the second driving force transmission member 42. At this time, the second driving force transmission member 42 is combined with the detection device 30.

[0398] Correspondingly, according to the structure of the components in the driving device 40 used to combine with the driving part 31, the structure of the driving part 30 can be changed accordingly, which will not be listed one by one here. As shown in Figure 49, when the third driving force transmission member 43 is set as a belt, the driving part 31 can be set as a friction wheel or a gear.

[0399] After the detection is completed, the detection device 30 will no longer need to receive driving force and will stop working. For this purpose, the developing box 100 also includes a driving force cutting-off portion, which is used to cut off the driving force transmission between the driving force output member 200c and the detection device 30. More specifically, the driving force cutting-off portion is used to cut off the driving force source of the detection portion 32 to at least force the detection portion 32 to stop working.

[0400] It is feasible to provide a driving force cutting-off portion in at least one of the driving force output member 200c / driving source 50, the driving device 40 and the driving portion 31. As shown in FIG49 , along the circumferential direction of the second driving force transmission member 42, a portion of the circumferential surface of the second driving force transmission member 42 is provided with teeth / friction surface (driving force transmission member) that can receive the driving force, and the other portion of the circumference is provided as a smooth surface, or is provided with teeth / friction surface that cannot be combined with the first driving force transmission member 41. The smooth surface or the teeth / friction surface that cannot be combined with the first driving force transmission member 41 is the driving force cutting-off portion.

[0401] In some embodiments, at least one of the detection device 30, the driving device 40 and the driving source 50 / driving source 50 may also be provided with a delay device to avoid unstable driving force transmission / output when the imaging device is first started, resulting in a decrease in the detection accuracy of the detection device 30.

[0402] Depending on the position and structure of the detection part 90 on the equipment side, the movement mode of the detection part 32 can be rotation, translation, swing, etc. When the detection part 32 is set to rotate, the rotation axis L3 of the detection part 32 does not need to be limited. For example, the rotation axis L3 is parallel to the first direction, or the rotation axis L3 intersects with the first direction. Figure 49 shows the implementation structure in which the rotation axis L3 is parallel to the first direction.

[0403] When the charging member is set to a charging roller, based on the inventive concept, the driving source 50 can also be a driving member in the drum box 200 for driving the charging roller, or a second driving force receiving member 200b, that is, the driving device 40 can be directly combined with the driving member or the second driving force receiving member 200b to receive the driving force. In some embodiments, the charging roller is driven to rotate by the photosensitive drum 23. At this time, the driving member is the photosensitive drum 23; in some embodiments, the charging roller is driven to rotate by an additional driving force receiving member (such as a gear, a coupling, etc.). At this time, the driving member is an additional driving force receiving member. The additional driving force receiving member can directly receive the driving force from the second driving force receiving member 200b and rotate, or directly receive the driving force from the imaging device and rotate.

[0404] In some embodiments, the detection device 30 may also be disposed at the driving end F, so that the detection device 30 may directly receive the driving force from the imaging device, that is, the driving source 50 is disposed in the imaging device.

[0405] [Example 21]

[0406] Different from Example 20, the driving source 50 in this embodiment is arranged in the developing box 100. Specifically, as shown in Figures 50 and 51, the driving source 50 includes a motor (another embodiment of the driving force output member 200c) 51 and a trigger member 502. The driving device 40 is still configured to include at least one driving force transmission member. One end of the driving device 40 is combined with the motor 501, and the other end is combined with the detection device 30, for transmitting the driving force output by the motor 501 to the detection device 30.

[0407] The trigger member 502 is used to start the motor 501. As shown in Figure 51, when the door cover 1001 of the imaging device is closed, the door cover 1001 touches the trigger member 502, so that the motor 501 is started and outputs driving force to the driving device 40.

[0408] In one feasible embodiment, the motor 501 is set to delayed start, that is, after the trigger member 502 is touched by the door cover 1001, the motor 501 does not start immediately, but starts after a predetermined time interval. This design is conducive to preventing the door cover 1001 from being closed by mistake, causing the detection device 30 to start working.

[0409] In other embodiments, the trigger member 502 may also be touched by other components, for example, the trigger member 502 is touched by the inner wall of the imaging device, or the trigger member 502 is touched by an operator, or the trigger member 502 is touched by a switch component provided separately in the developing box.

[0410] Similar to the twenty-first embodiment, a driving force cut-off portion may be further provided in at least one of the driving source 50, the driving device 40 and the driving portion 31, so that the detection device 30 no longer receives the driving force and remains stationary after completing the detection, or the driving source 50 is configured to output the driving force within a predetermined time period after the motor 501 is started, and after the time period, the motor 501 stops outputting the driving force. It can be seen that the trigger member 502 can be configured to start the motor 501 and turn off the motor 501, or it can be configured to only start the motor 501.

[0411] [Example 22]

[0412] Different from Example 20, the driving source 50 in this embodiment is arranged in the developing box 100, as shown in Figure 52, the driving source 50 includes an elastic release device (another embodiment of the driving force output member) 51 and a trigger member 502, and the driving device 40 is still configured to include at least one driving force transmission member. One end of the driving device 40 is combined with the motor 501, and the other end is combined with the detection device 30, for transmitting the driving force output by the elastic release device 51 to the detection device 30.

[0413] The elastic force release device may be, for example, a coil spring, a clockwork spring, a torsion spring, a tension spring, a compression spring, etc. This embodiment is described using a coil spring as an example.

[0414] The trigger member 502 can still be triggered in any of the ways in Example 21. When the trigger member 502 is triggered, the trigger member 502 forces the coil spring 51 to release the elastic force / driving force. Since the elastic force / driving force stored in the coil spring 51 is limited, when the elastic force / driving force in the coil spring 51 is released, the coil spring 51 stops releasing the elastic force / driving force, and accordingly, the driving device 40 and the detection device 30 no longer work.

[0415] In some embodiments, a driving force cut-off portion may be provided in at least one of the driving source 50, the driving device 40 and the driving portion 31 to prevent the coil spring 51 from storing excessive elastic force / driving force, causing the detection device 30 to continue to move after the detection is completed.

[0416] In some embodiments, the coil spring 51 is not directly triggered by the trigger member 502, but remains in a state of always outputting elastic force / driving force outward. In order to prevent the detection device 30 from being driven by the coil spring 51, the developer box 100 also includes a locking device 503, which is used to lock at least one of the driving device 40 and the detection device 30. In this way, even if the coil spring 51 has a tendency to output elastic force / driving force outward, the detection device 30 can still be maintained in a non-driven state.

[0417] The locking device 503 includes a locking portion 5031 and a first pushing member 5032. The locking portion 5031 has a locking position and an unlocking position. In the locking position, the locking portion 5031 locks at least one of the driving device 40 and the driving device 30, and the detection device 30 cannot be driven by the elastic force / driving force released by the coil spring 51. In the unlocking position, the driving device 40 and the detection device 30 are no longer locked by the locking portion 5031, and the detection device 30 can be driven by the elastic force / driving force released by the coil spring 51. The first pushing member 5032 is used to push the locking portion 5031 toward the locking position.

[0418] The first pushing member 5032 is preferably an elastic member. When the trigger member 502 is touched, the trigger member 502 applies a force to the locking portion 5031, forcing the locking portion 5031 to move from the locked position to the unlocked position. The elastic member 532 undergoes elastic deformation, and the detection device 30 can be driven by the elastic force / driving force released by the coil spring 51.

[0419] Furthermore, the developing box 100 also includes a accommodating body 15 and a covering member 14, wherein the accommodating body 15 is connected to the developing shell 1, the coil spring 51 is accommodated between the accommodating body 15 and the covering member 14, and the driving device 40 is combined with the coil spring 51 in a manner of passing through the covering member 14. Preferably, a guided portion 141 is provided on the covering member 14, and a guiding portion 151 is provided in the accommodating body 15. Through the combination of the guiding portion 151 and the guided portion 141, the covering member 14 and the accommodating body 15 can be quickly and accurately combined.

[0420] [Example 23]

[0421] As shown in Figures 53, 54A and 54B, similar to Example 21, the driving source 50 in this embodiment is also arranged in the developer box 100, and the driving source 50 includes an electromagnetic generating member (another embodiment of the driving force output member 200c) and a trigger member 502, but the driving device 40 in this embodiment is set as a magnetic member located between the detection device 30 and the driving source 50, or the driving device 40 is a part of the detection device 30.

[0422] Through any one of the triggering methods of Example 21, the trigger member 502 is triggered to start the electromagnetic generating member 51, and the electromagnetic generating member 51 is used to generate electromagnetic force, forcing the driving device 40 to drive the detection device 30 to move between the first position and the second position. In the first position, the detection device 30 can interact with the device-side detection member 90 in the imaging device, and in the second position, the detection device 30 cannot interact with the device-side detection member 90 in the imaging device; specifically, the detection device 30 is moved by the repulsive force generated between the driving device 40 and the detection device 30, and the detection device 30 can move in the first direction, the second direction, and the third direction.

[0423] Furthermore, the driving source 50 also includes a power supply (not shown) and a control board 54. The power supply is used to supply power to the electromagnetic generating component 51, and the control board 54 is used to control whether the electromagnetic generating component 51 generates electromagnetic force according to design requirements. As shown in FIG54A, when the trigger component 51 is touched by the door cover 1001, the electromagnetic generating component 51 is started to generate electromagnetic force, and the driving device 40 drives the detection device 30 to the first position; similar to Example 21, even if the trigger component 502 is always touched, after the detection device 30 completes the detection, the electromagnetic generating component 51 no longer generates electromagnetic force under the control of the control board 54. As shown in FIG54B, the detection device 30 returns to the second position under the action of its own gravity or other auxiliary components.

[0424] [Beneficial Effects]

[0425] 1. The driving force of the detection device 30 no longer comes from the first driving force receiving member 3. In this way, regardless of whether the detection device 30 is arranged on the same side as the first driving force receiving member 3, it is no longer necessary to set a component for transmitting the driving force between the detection device 30 and the first driving force receiving member 3. The load of the first driving force receiving member 3 will be reduced, which is beneficial to improving the rotational stability of the components driven by the driving force of the first driving force receiving member 3 (such as the developing roller 21).

[0426] 2. The driving force of the detection device 30 comes from a driving source 50 different from the first driving force receiving member 3, so the driving source 50 can be set according to the position of the detection device 30 with higher flexibility, thereby improving the design freedom of the developer box 100.

[0427] According to the description of the above embodiments, the detection device 30 can be directly combined with the driving source 50 to receive the driving force, and can also be indirectly combined with the driving source 50 to receive the driving force.

[0428] When the driving source 50 is provided in the drum cartridge 200, the driving force output member 200c may be any rotating member rotatably provided in the drum casing 201, for example, the rotating member is the photosensitive drum 23, the charging member, the second driving force receiving member 200b, and the like.

[0429] 3. In an embodiment in which the detection device 30 and the first driving force receiving member 3 are arranged on different sides, the driving force for driving the detection device 30 does not need to be transmitted between the two ends of the developer box 100, which not only reduces the delay in driving the detection device 30, but also reduces the structural complexity of the developer box 100.

[0430] [Example 24]

[0431] As shown in Figures 55A and 55B, in the driving device 40 in this embodiment, the first driving force transmission member 41 is configured not to receive the driving force of the first driving force receiving member 3, but to receive the driving force of the driving source 50 (driving force output member 200c) different from the first driving force receiving member 3 and work, and the detection member 32 interacts with the device side detection member 90 by receiving the driving force from a source different from the first driving force receiving member 3. In this embodiment, the driving source 50 is located outside the developing box 100. Specifically, the driving source 50 is arranged in the drum box 200.

[0432] The drum box 200 includes a second driving force receiving member 200b and a driving force output member 200c. The second driving force receiving member 200b drives the photosensitive drum 23 to rotate directly or indirectly. In this embodiment, the second driving force receiving member 200b and the driving force output member 200c are gears arranged on the same side of the photosensitive drum 23 and are coaxially arranged with the photosensitive drum 23. Therefore, the photosensitive drum 23 will be directly driven by the second driving force receiving member 200b, and the driving force output member 200c can output the driving force as the second driving force receiving member 200b rotates. The driving source 50 is the driving force output member 200c. Preferably, the second driving force receiving member 200b is coaxially arranged with the driving force output member 200c. More preferably, the photosensitive drum 23, the first driving force receiving member 200b, and the driving force output member 200c are all coaxially arranged.

[0433] In this embodiment, the driving device 40 includes a first driving force transmission member 41, a second driving force transmission member 42, a third driving force transmission member 43, a fourth driving force transmission member 44 and a fifth driving force transmission member 45. The first driving force transmission member 41 is used to combine with the driving source 50 to receive the driving force, and the fifth driving force transmission member 45 is used to transmit the driving force received by the first driving force transmission member 41 to the detection device 30 / detection member 32, thereby enabling the detection device 30 / detection member 32 to interact with the device side detection member 90.

[0434] The number of the second driving force transmission member 42, the third driving force transmission member 43 and the fourth driving force transmission member 44 can also be appropriately increased or decreased according to the structural design of the developing box 100, as long as the driving force of the first driving force transmission member 41 can be transmitted to the fifth driving force transmission member 45. Therefore, at least one of the second driving force transmission member 42, the third driving force transmission member 43 and the fourth driving force transmission member 44 can also be called an intermediate transmission member, and the number of intermediate transmission members can be one or more. The first driving force transmission member 41 can be called the transmission head, and the fifth driving force transmission member 45 can be called the transmission tail.

[0435] In some embodiments, the first driving force transmission member 41 and the fifth driving force transmission member 45 can also be directly combined. This method has a higher driving force transmission efficiency, that is, an intermediate transmission member between the first driving force transmission member 41 and the fifth driving force transmission member 45 does not need to be set.

[0436] In some embodiments, the driving device 40 can also be configured to include one of a first driving force transmission member 41 , a fifth driving force transmission member 45 and an intermediate transmission member 42 , as long as it can transmit the driving force of the driving source 50 to the detection device 4 .

[0437] As shown in Figure 55A, the first driving force transmission member 41 is coaxially arranged with the developing roller 21, or in other words, the first driving force transmission member 41 is coaxially arranged with the second transmission member 62, but the first driving force transmission member 41 is rotatable relative to the second transmission member 62 / developing roller 21, that is, the first driving force transmission member 41 does not rotate with the rotation of the second transmission member 62 / developing roller 21; the second driving force transmission member 42 is coaxially arranged with the first driving force receiving member 3, but the second driving force transmission member 42 is rotatable relative to the first driving force receiving member 3, that is, the second driving force transmission member 42 does not rotate with the rotation of the first driving force receiving member 3.

[0438] In the detection device 30 shown in Figure 55A, the movable part 31 is configured as a movable rod that can reciprocate along the first direction, and the detection part 32 is configured to be rotatable around a rotation axis parallel to the third direction. According to the inventive concept of the present utility model, the movable part 31 can also be configured to be rotatable along an axis that is not parallel to the first direction, and the detection part 32 can also be configured to reciprocate along the first direction or the second direction. The specific movement mode can be linear motion or curved motion.

[0439] In some embodiments, the movable member 31 and the detecting member 32 may also be formed integrally.

[0440] FIG55A shows an example in which the detection member 32 is located at the non-driving end. However, according to the inventive concept of the present utility model, when the detection member 32 is set at the driving end, the driving device 30 is still applicable.

[0441] Continuing with Figure 55A, the developer box 100 also includes a drive bracket 1h connected to the developer shell 1. At the driving end, at least one of the developing roller 21 and the powder feeding roller 22 is supported by the drive bracket 1h. At least a portion of the driving force transmission assembly 6 and at least a portion of the driving device can be supported by the drive bracket 1h or directly supported by the shell 1, for example, by providing a columnar protrusion or a support groove on the shell 1 that can support the driving force transmission assembly 6; the chip assembly 16 is provided on the drive bracket 1h. Specifically, the mounting bracket 161 is connected to the drive bracket 1h, so that the mounting bracket 161 can be installed on different models of developer boxes as an adapter along with the drive bracket 1h.

[0442] In some embodiments, the chip assembly 16 can also be designed as an independent component from the developer cartridge body (all components of the developer cartridge 100 except the chip assembly 16). In this case, the chip assembly 16 will no longer be installed or removed together with the developer cartridge body, thus improving the applicability of the developer cartridge body. The chip assembly 16 can be installed on the inner side of the drum cartridge bottom plate 202 facing the developer cartridge 100 (the side where the developer cartridge accommodating portion 201 is located), or it can be installed on the outer side of the drum cartridge bottom plate 202 facing away from the developer cartridge 100. Based on the above embodiment, the present invention also provides a developer cartridge without a stirring frame 23 to simplify the structure of the developer cartridge and save costs. As shown in Figure 56, the stirring frame 23 is no longer provided in the cavity 10. In order to ensure that the carbon powder reaches the developing roller 21 and the powder feeding roller 22 smoothly, the lower side plate 1t1 of the bottom shell 1t is set to be inclined relative to the second direction. Specifically, the inner surface 1t2 of the lower side plate 1t1 facing the cavity 10 is inclined relative to the second direction. Thus, the structure of the developing box 100 can be simplified. When the user installs and disassembles the developing box 100, the user can also directly contact the lower side plate 1t1 with his hands. Compared with the handle 12, the lower side plate 1t1 has a larger area for the user to grasp.

[0443] At the angle shown in Figure 56, the first straight line P1 passes through the rotation axis L1 of the developing roller 21 and the rotation axis L3 of the first driving force receiving member 3 at the same time, the second straight line P2 is parallel to the inner surface 1t2, the first straight line P1 and the second straight line P2 intersect at point P0, and the angle γ formed therebetween satisfies: 0°<γ≤45°, preferably, 5°<γ≤20°.

[0444] As shown in Figure 57, when viewed along the first direction, at least a portion of the first driving force transmission member 41 is not blocked by the end cover 11, or in other words, along the second direction, at least a portion of the first driving force transmission member 41 protrudes from the end cover 11, so that the first driving force transmission member 41 can more smoothly receive the driving force of the driving source 50 / driving force output member 200c.

[0445] As shown in Figure 58, the developing box 100 also includes a rib 1k arranged on the shell 1 and a cover 19 connected to the shell 1. The rib 1k is formed to protrude from the shell 1 to enhance the strength of the shell 1. The cover 19 covers the rib 1k, which not only improves the overall aesthetics of the developing box 100, but also prevents the rib 1k from wear or damage.

[0446] [Example 25]

[0447] The same structures as those in the above embodiment will not be described in detail, and the same components as those in the above embodiment will be numbered the same in this embodiment.

[0448] As shown in Figures 59, 60 and 61, similar to the third embodiment, the developer box 100 in this embodiment also includes a first support portion 1c and a second support portion 1d arranged on the right side wall 1b, wherein the first support portion 1c is used to support the powder feeding roller shaft 222, and the second support portion 1d is used to support the developing roller shaft 212. That is to say, the first support portion 1c for supporting the powder feeding roller 22 and the second support portion 1d for supporting the developing roller 21 are both formed integrally with the left side wall 1b. This is beneficial to reducing the number of parts of the developer box 100 and reducing the assembly steps of the developer box 100.

[0449] In this embodiment, the first support portion 1c has a first support groove 1c1 for accommodating the powder feed roller shaft 222, and the second support portion 1d has a second support groove 1d1 for accommodating the developing roller shaft 212. Along the first direction, the first support groove 1c1 and the second support groove 1d1 do not penetrate the right side wall 1b, or in other words, the first support groove 1c1 and the second support groove 1d1 are not exposed from the right side wall 1b. Accordingly, the developing roller shaft 212 and the powder feed roller shaft 222 will not be exposed from the right side wall 1b, and the tendency of the developing roller shaft 212 and the powder feed roller shaft 222 to move to the right can be restricted; during the installation of the developing roller 21, the developing roller shaft 212 can be directly inserted into the second support groove 1d1 along the direction indicated by the arrow in Figure 59. Similarly, during the installation of the powder feed roller 22, the powder feed roller shaft 222 can also be directly inserted into the first support groove 1c1. Finally, the powder feed roller shaft 222 is surrounded by the first support groove 1c1, and the developing roller shaft 212 is surrounded by the second support groove 1d1.

[0450] In this embodiment, the conductive member 5 can be directly installed on the developing housing 1, or it can be installed on the developing housing 1 through the bracket 8. In a modified embodiment, the bracket 8 can also be formed integrally with the developing housing 1. In this case, the conductive member 5 can be regarded as being directly installed on the developing housing 1.

[0451] In some embodiments, as shown in FIG. 60 , the first support groove 1c1 and the second support groove 1d1 are not connected along a direction intersecting the first direction, and thus the strength of the first support portion 1c and the second support portion 1d can be improved.

[0452] In some embodiments, as shown in Figure 60, the shapes of the first support groove 1c1 and the second support groove 1d1 can be at least one of a circular groove, a square groove or a polygonal groove; at the same time, the shapes of the first support groove 1c1 and the second support groove 1d1 can be the same or different, which is not limited here.

[0453] In some embodiments, as shown in Figure 61, the first support groove 1c1 and the second support groove 1d1 are connected by the connecting portion 1r along a direction intersecting with the first direction. In this way, the size of the first support groove 1c1 and the size of the second support groove 1d1 can be slightly adjusted, which not only facilitates the installation of the powder feeding roller shaft 222 and the developing roller shaft 212, but also can reduce the friction between the powder feeding roller 22 and the developing roller 21 during rotation by forming a loose fit between the powder feeding roller shaft 222 and the first support groove 1c1 and a loose fit between the developing roller shaft 212 and the second support groove 1d1.

[0454] [Example 26]

[0455] The twenty-fifth embodiment mainly describes the structure of the conductive end. This embodiment will focus on describing the structure of the driving end based on the twenty-fifth embodiment.

[0456] As shown in Figure 62, the developing box 100 also includes a shielding member 1w connected to the developing housing 1. Along the first direction, the developing roller shaft 212 and the powder feeding roller shaft 222 will be shielded by the shielding member 1w and will not be exposed. At this time, the rotation axis L1 of the developing roller 21 and the rotation axis of the powder feeding roller 22 will pass through the shielding member 1w. The shielding member 1w is extended to the left from the developing housing 1. Preferably, the shielding member 1w is formed integrally with the developing housing 1. Specifically, the shielding member 1w is extended to the left from the left side wall 1a.

[0457] As shown in FIG64 , the shielding member 1w has an opening 1w2 facing the first transmission member 61, and a shielding space 1w1 is formed inside the shielding member 1w, so that the shielding space 1w1 faces the first transmission member 61 through the opening 1w2; as shown in FIG63 , the developer cartridge 100 further includes a third support portion 1n and a fourth support portion 1m integrally formed with the left side wall 1a, wherein the third support portion 1n is used to support the powder feeding roller shaft 222, and the fourth support portion 1m is used to support the developing roller shaft 212, and along the first direction, a first through hole 1n1 is formed in the third support portion 1n and passes through the left side wall 1a, and a first through hole 1n1 is formed in the fourth support portion 1m and passes through the left side wall 1 a's second through hole 1m1, and the first through hole 1n1 and the second through hole 1m1 are both connected to the shielding space 1w1. Therefore, when the powder feeding roller 22 and the developing roller 21 are installed, the powder feeding roller shaft 222 will be surrounded by the third support portion 1n / first through hole 1n1, and the developing roller shaft 212 will be surrounded by the fourth support portion 1m / second through hole 1m1, and the powder feeding roller shaft 222 and the developing roller shaft 212 can enter the shielding space 1w1 through the first through hole 1n1 and the second through hole 1m1 respectively, and the third transmission member 63 and the second transmission member 62 can be installed on the powder feeding roller shaft 222 and the developing roller shaft 212 in the shielding space 1w1.

[0458] Similarly, the first through hole 1n1 and the second through hole 1m1 may be disconnected or connected to each other, but along the first direction, the blocking member 1w can always limit the tendency of the developing roller shaft 212 and the powder feeding roller shaft 222 to move leftward.

[0459] In some embodiments, when the developer box 100 is assembled, a portion of the first transfer member 61 enters the shielding space 1w1. Even if the end cover 11 is not installed, the first transfer member 61 is not easy to fall off, and at least one of the second transfer member 62 and the third transfer member 63 can also be combined with the first transfer member 61 in the shielding space 1w1. Due to the obstruction of the shielding member 1w, at least the second transfer member 62 and the third transfer member 63 are not easily interfered with by external components.

[0460] In some embodiments, as shown in Figure 65, a partition 1w3 is further provided in the shielding member 1w, through which the shielding space 1w1 is divided into a first separation space 1w11 and a second separation space 1w12, wherein the first through hole 1n1 is connected to the first separation space 1w11, and the second through hole 1m1 is connected to the second separation space 1w12, that is, the powder feeding roller shaft 222 will enter the first separation space 1w11 through the first through hole 1n1, and the developing roller shaft 212 will enter the second separation space 1w12 through the second through hole 1m1, and the first separation space 1w11 and the second separation space 1w12 both face the first transfer member 61 through the opening 1w2.

[0461] According to the inventive concept of the present utility model, the first support portion 1c having a first support groove 1c1, the second support portion 1d having a second support groove 1d1, the third support portion 1n having a first through hole 1n1, the fourth support portion 1m having a second through hole 1m1 and the shielding member 1w can be set at the same time. At this time, along the first direction, the developing roller shaft 212 and the powder feeding roller shaft 222 are not exposed; or, only the first support portion 1c having the first support groove 1c1 and the second support portion 1d having the second support groove 1d1 are set at the conductive end. At this time, along the first direction, the developing roller shaft 212 and the powder feeding roller shaft 222 are not exposed to the right; or, only the third support portion 1n having the first through hole 1n1, the fourth support portion 1m having the second through hole 1m1 and the shielding member 1w are set at the driving end. At this time, the developing roller shaft 212 and the powder feeding roller shaft 222 are not exposed to the left.

[0462] Accordingly, the developing roller shaft 212 and the powder feeding roller shaft 222 in the developing box 100 involved in the present invention can be arranged so that when viewed along the first direction, the developing roller shaft 212 and the powder feeding roller shaft 222 are not exposed toward at least one of the two ends (the driving end and the conductive end) in the first direction.

[0463] [Example 27]

[0464] As shown in Figure 66, the chip assembly 300 involved in this embodiment includes a chip frame 31 and a chip 32. The chip 32 has an electrical contact portion 321 for electrically connecting / electrically contacting the contact pin 403 in the imaging device, and at least the electrical contact portion 321 is supported by the chip frame 31; the chip 32 also includes a substrate 324, and the electrical contact portion 321 can be set on the substrate 324 or separately from the substrate 324. The following description takes the electrical contact portion 321 set on the substrate 324 as an example.

[0465] Continuing with Figures 67-74, the chip holder 31 includes a fixed support frame 313, a telescopic support rod 314, an elastic member, and a chip base 316. The elastic member is a buffer spring 315. In the third direction, the fixed support frame 313 is immovably positioned relative to the end cap 11. The electrical contact portion 321 is directly or indirectly supported by the chip base 316. In the first direction, the left side of the chip base 316 is fixedly connected to the right side of the fixed support frame 313. Preferably, the chip base 316 and the fixed support frame 313 are integrally formed. In the third direction, the chip base 316 includes a chip support column 3161 and a chip embedding seat 3162. In the third direction, the right side of the fixed support frame 313 is fixedly connected to the left side of the chip support column 3161. The bottom of the chip embedding seat 3162 is connected to the top of the chip support column 3161. The substrate 324 of the chip 32 is embedded in the chip embedding seat 3162, and the electrical contact portion 321 is slightly higher than the top of the chip embedding seat 3162. The bottom of the chip embedding seat 3162 is connected to the top of the buffer spring 315. The telescopic support rod 314 has a positioning slot with a positioning post in the slot. The bottom end of the buffer spring 315 is inserted into the positioning slot and sleeved onto the positioning post. The bottom end of the telescopic support rod 314 protrudes from the bottom end of the fixed support frame 313. Along the first direction, the bottom end of the telescopic support rod 314 is provided with a stopper 3141 on either side. A guide groove 3142 is formed between the two stoppers 3141, which guides the sliding movement on the second sidewall 401d. A guide portion 3163 is provided at the intersection of the left side in the first direction and the rear side in the second direction of the chip embedding seat 3162. This guide portion has a chamfered or beveled surface. By setting the guide portion 3163, it is possible to avoid interference between the chip embedding seat 3162 and the side 4012a1 of the through groove 4012 on the first side wall 401a of the chip component mounting portion 401 during the process of removing the combination of the developer box 100 and the drum box 200 (processing box) from the imaging device, thereby improving the smoothness of removing the developer box.

[0466] As shown in Figure 73, the chip component mounting portion 401 in the imaging device includes a first side wall 401a, an upper wall 401b of the device, a lower wall 401c of the device, and a second side wall 401d. The first side wall 401a of the device, the upper wall 401b of the device, and the lower wall 401c of the device together form a accommodating space 4011 that can accommodate the chip component 300; the upper wall 401b of the device and the lower wall 401c of the device are arranged relative to each other along a third direction, and the contact pin 403 is arranged on the upper wall 401b of the device.

[0467] As shown in Figures 73 and 74, along the direction from rear to front, the upper wall 401b of the device is sequentially provided with an upper rear wall 401ba, an upper middle wall 401bb and an upper front wall 401bc, and the lower wall 401c of the device is sequentially provided with a lower front wall 401ca, a lower middle wall 401cb and a lower rear wall 401cc. According to the shape change of the upper wall 401b of the device, the distance from the bottom surface 401ba of the upper wall to the lower wall 401c of the device along the third direction also changes. As shown in Figure 75, the distance from the upper front wall 401ba to the lower front wall 401ca is h4, the distance from the upper middle wall 401bb to the lower front wall 401cb is h5, and the distance from the upper rear wall 401bc to the lower rear wall 401cc is h6, satisfying h4>h5, h5<h6. That is, along the installation direction of the developing box 100 (from rear to front), the size of the accommodating space 4011 in the third direction first decreases from large to large and then increases.

[0468] As shown in Figure 74, a through slot 4012 is provided in the upper portion of the first side wall 401a, extending from the rearward direction to the forward direction. When the developer cartridge 100 and drum cartridge 200 combination (process cartridge) is removed from the imaging device, the through slot 4012 allows the chip insert 3162 to be positioned away from the chip insert seat 3162, preventing interference. The through slot 4012 includes a first through slot 4012a and a second through slot 4012b, each of which is connected. The width of the first through slot 4012a is greater than the width of the second through slot 4012b. When the process cartridge is installed or removed from the imaging device, the chip 32 initially moves in the third direction more rapidly. Therefore, the first through slot 4012a is located at the rear end of the through slot 4012 in the second direction. Once the chip 32 is fully inserted into the imaging device, the chip moves in the third direction less rapidly. Therefore, the second through slot 4012b is located at the front end of the through slot 4012.

[0469] As shown in Figure 76, the imaginary plane L4 passes through the rotation axis L1 of the developing roller 21 and the rotation axis L2 of the driving force receiving member 3, and at least a portion of the chip 32 is located below and behind the imaginary plane L4; more preferably, the electrical contact portion 321 is located below the imaginary plane L4, thereby preventing the combination of the developing box 100 and the drum box 200 (processing box) from colliding with the guide rail of the imaging device during installation and removal to damage the chip 32.

[0470] 77-80 below describe the installation process of the developer cartridge 100. In one embodiment, the developer cartridge 100 is first installed to the drum cartridge 200, and the combination of the developer cartridge 100 and the drum cartridge 200 (processing cartridge) is then detachably installed to the imaging device.

[0471] When the developer box 100 is installed to the drum box 200 to form a combination of the developer box 100 and the drum box 200 (processing box), and when the processing box is initially installed to the imaging device, the chip assembly 300 is located between the upper rear wall 401ba and the lower front wall 401ca, and the chip assembly 300 is in a non-contact state or a non-abutting state with the lower front wall 401ca and the upper rear wall 401ba, respectively, or can be in a natural state. As the processing box continues to be installed forward along the second direction, the chip assembly 300 enters between the upper middle wall 401bb and the lower middle wall 401cb. In the third direction, the distance between the upper middle wall 401bb and the lower middle wall 401cb is smaller than the distance between the upper rear wall 401ba and the lower front wall 401ca (that is, the distance between the upper wall 401b of the device and the lower wall 401c of the device becomes smaller). The chip base 316 of the chip assembly 300 abuts against the upper middle wall 401bb, and the telescopic support rod 314 of the chip assembly 300 abuts against the lower middle wall 401cb, causing the buffer spring 315 to be compressed. As the processing box continues to be installed forward along the second direction, when the chip assembly 300 is located between the upper front wall 401bc and the lower rear wall 401cc, the distance between the upper front wall 401bc and the lower rear wall 401cc is larger than the distance between the upper middle wall 401bb and the lower middle wall 401cb (that is, the distance between the upper wall 401b of the device and the lower wall 401c of the device becomes larger), and in the third direction, the position of the upper front wall 401bc is higher than the upper middle wall 401bb, and the buffer spring 315 pushes the chip base 316 to move upward. In the second direction, the front end of the processing box takes the photosensitive drum axis L5 as the axis, and the rear end of the processing box moves upward along the third direction, that is, the entire processing box rotates upward in the third direction around the photosensitive drum axis L5 as the axis, so that the chip base 316 electrically connects the chip 32 with the contact pin 403.

[0472] [Example 28]

[0473] As shown in Figures 81 and 82, the lifting member 103 involved in this embodiment is arranged on the same side of the chip assembly 300. Furthermore, the lifting member 103 is arranged adjacent to the chip assembly 300. Taking the shell 1 as a reference, the chip assembly 300 is fixed. The chip assembly 300 includes a mounting frame 31 and a chip 32. An elastic pad is provided between the mounting frame 31 and the chip 32. The elastic pad can be a silicone pad, a sponge pad, etc., so that the chip 32 has a certain amount of activity space to ensure a good electrical connection with the electric contact needle in the imaging device.

[0474] The lifting member 103 includes a lifting block 1031 that is directly or indirectly connected to the housing 1. The side of the lifting block 1031 that contacts the mounting portion 401 can be a curved surface or a flat surface. At least one of the two ends of the curved surface or the flat surface along the second direction is provided with a rounded corner or a chamfer to allow the lifting block 1031 to slide more smoothly. The lifting block 1031 is provided between the driving force receiving member 3 and the chip assembly 300. Preferably, the lifting block 1031 is provided in the middle of the straight line L6 connecting the rotation axis L1 of the developing roller 21 and the center of the chip 32. Furthermore, along the third direction, the lifting block 1031 is provided below the connecting line L6 to avoid damage to the lifting block 1031 due to excessive extrusion force.

[0475] The lifting member 103 includes a second connecting part 1032 directly or indirectly connected to the shell 1, and a lifting block 1031 connected to the second connecting part 1032, such as the second connecting part 1032 is connected to the end cover 11, or the second connecting part 1032 is connected to the shell 1 through the end cover 11; the lifting block 1031 and the second connecting part 1032 can be directly or indirectly connected to the shell 1 together, or only the second connecting part 1032 is directly or indirectly connected to the shell 1, and the lifting block 1031 is separately arranged outside the shell 1 and the end cover 11. The second connecting part 1032 and the lifting block 1031 can be integrally formed or designed as a separate body. When the second connecting part 1032 and the lifting block 1031 are designed as a separate body, the lifting block 1031 and the second connecting part 1032 can be made of different materials, and the lifting block 1031 can be made of wear-resistant, self-lubricating and other materials. Preferably, the lifting block 1031 is arc-shaped, the second connecting portion 1032 is a plurality of reinforcing ribs, and the second connecting portion 1032, the lifting block 1031 and the end cover 11 are integrally formed.

[0476] When the developing cartridge 100 is mounted on the drum cartridge 200, along the third direction, the locked surface 1021 is locked between the locking portions 2051, and there is a certain amount of movable space between the locked surface 1021 and the locking portions 2051, so that the developing cartridge 100 as a whole can rotate around the left guide protrusion 101L and the right guide protrusion 101R. The developing cartridge 100 includes a left forced pushing member 14L and / or a right forced pushing member 14R, and the surface of the left forced pushing member 14L abutting against the left forced pushing mechanism 204L can be rotated. The surface where the right forced pusher 14R and the right forced pusher mechanism 204R abut can be an arcuate surface, a flat surface, or a combination of an arcuate surface and a flat surface. The left forced pusher 14L and the right forced pusher 14R have the same or different shapes. Preferably, the surface where the left forced pusher 14L abuts the left forced pusher mechanism 204L is an arcuate surface, and the surface where the right forced pusher 14R abuts the right forced pusher mechanism 204R is an arcuate surface, which can make the developer cartridge 100 rotate more smoothly. When the process cartridge is installed in the mounting portion 401 of the imaging device, the lifting block 1031 slides along the lower front wall 401d1, passes through the lower rear wall 401d2, is lifted, and snaps into the support position 401d3. The developer cartridge 100 completes the rotation and lifting action, and the chip assembly 300 is lifted to the upper rear wall 401bc, and the chip assembly 300 is electrically connected to the contact pins of the imaging device.

[0477] As shown in Figure 83, in some embodiments, the lifting member is a rebound member 1034, and the rebound member 1034 is arranged between the shell 1 and the drum box 200. Specifically, along the third direction, the force squeezes the developing box 100 downward (the force can come from the mounting part 401 of the imaging device or other components), which can lower the height of the developing box 100 and make the developing box 100 move downward. When the external force is removed, the developing box 100 will reset. The rebound member 1034 can be a structural member made of elastic material, or an elastic structure with an elastic member. Specifically, the rebound member 1034 includes a rebound portion 1035 movably connected to the shell 1, and an elastic member is arranged between the rebound portion 1035 and the shell 1. The elastic member can be a tension spring, a compression spring or a spring sheet, so that the rebound portion 1035 maintains a tendency to move downward. When the processing box is installed on the mounting portion 401 of the imaging device, the chip assembly 300 enters along the upper front wall 401ba and passes through the upper middle wall 401bb. It is squeezed by the upper middle wall 401bb, the rebound part 1034 is compressed, the developing box 100 is pressed down, and the chip assembly 300 slides to the upper rear wall 401bc and rebounds, completing the electrical connection with the contact pin of the imaging device.

[0478] In some embodiments, the lifting member 103 is disposed at the rear portion of the housing 11 along the second direction. The lifting member 103 can be disposed on the drum cartridge 200 or the housing 11. The lifting member 103 is used to raise the height of the developer cartridge 100, thereby forming a gap between the developer cartridge 100 and the drum cartridge 200. Pressing the developer cartridge 100 can cause the developer cartridge 100 to deform, thereby lowering the chip assembly 300. The housing 11 is provided with the lifting member 103. The lifting member 103 can be disposed at the bottom or side of the housing 1, and the lifting member 103 abuts against the drum cartridge 200, thereby supporting the developer cartridge 100 and enabling the chip assembly 300 to be electrically connected to the contact pins of the imaging device.

[0479] The lifting member 103 is provided at the bottom of the shell 11. The lifting member 103 is a protrusion. The surface of the protrusion abutting against the drum box 200 is a smooth surface. The number of protrusions is at least one. Preferably, at least one protrusion is provided close to the chip assembly 300 to ensure that the chip assembly 300 maintains a good electrical connection with the contact pin of the imaging device.

[0480] Lifting member 103 is located on the side of housing 1. Lifting member 103 is a pillar extending along the side of housing 1 toward drum cartridge 200. This pillar abuts drum cartridge 200, thereby supporting developer cartridge 100 and enabling electrical connection between chip assembly 300 and the contact pins of the imaging device. When the process cartridge is installed in mounting portion 401 of the imaging device, chip assembly 300 passes through upper middle wall 401bb along upper front wall 401ba. It is squeezed by upper middle wall 401bb, causing the entire housing 1 to be deformed downward, causing chip assembly 300 to slide into upper rear wall 401bc before rebounding and establishing electrical connection with the contact pins of the imaging device.

[0481] In some embodiments, the end cap 11 can elastically deform downward along the third direction, and the chip assembly 300 can produce a corresponding displacement as the end cap 11 deforms. Specifically, when the upper portion of the end cap 11 is squeezed, the end cap 11 will deform downward and maintain a tendency to rebound upward, that is, when the end cap 11 deforms downward, the chip assembly 300 also moves downward with the deformation of the end cap 11. When the end cap 11 returns to its original state, the chip assembly 300 also returns to its original position. The end cap 11 includes a deforming portion, which can be a slender structure or a thin-walled structure, or a structure with a vacant portion below the deformed portion. The chip assembly 300 is connected to the deforming portion. When the processing box is installed in the mounting portion 401 of the imaging device, the chip assembly 300 enters along the upper front wall 401ba and passes through the upper middle wall 401bb. It is squeezed by the upper middle wall 401bb, and the end cap 11 is deformed, causing the chip assembly 300 to slide into the upper rear wall 401bc and rebound, completing an electrical connection with the contact pins of the imaging device.

[0482] In some embodiments, when the developing box 100 is installed to the drum box 200, along the third direction, the locked surface 1021 is locked to the locking portion 2051, and there is no movable space between the locking portion 2051 and the locked surface 1021, that is, when the developing box 100 is locked to the drum box 200, the developing box 100 as a whole cannot rotate around the left guide protrusion 101L and the right guide protrusion 101R. When the processing box is installed to the mounting portion 401 of the imaging device, the lifting block 1031 slides along the lower front wall 401d1, and when it is lifted up through the lower rear wall 401d2 and snapped into the support position 401d3, the entire processing box rotates upward in the third direction around the photosensitive drum axis L5 as the axis, completing the rotation and lifting action, and the chip assembly 300 is electrically connected to the contact pin of the imaging device.

Claims

1. The powder knife is used to adjust the thickness of the carbon powder layer on the surface of the developer roller. The powder knife includes a blade and a knife holder that are combined with each other. The blade is used to contact the surface of the developer roller. It is characterized by: The powder knife also includes: A mounting portion, at least provided on the knife holder, through which the powder discharging knife is fixedly mounted; The combining area is located on at least one of the tool holder and the blade. The tool holder and the blade are combined in the combining area. The mounting portion is located in the combining area.

2. The powder discharging knife according to claim 1, characterized in that: The developing roller rotates around a rotation axis extending in a first direction, and along a direction intersecting both the first direction and a thickness direction of the blade, the blade holder has a first end and a second end spaced apart from each other, and the blade has a third end and a fourth end spaced apart from each other, wherein the second end is located between the third end and the fourth end, the third end is located between the first end and the second end, the first end is farther from the rotation axis than the second end, the third end is farther from the rotation axis than the fourth end, and the third end is farther from the rotation axis than the second end; A binding region is formed between the second end and the third end.

3. The powder discharging knife according to claim 1, characterized in that: The mounting portion passes through the blade and the blade holder at the same time.

4. The powder discharging knife according to claim 1, characterized in that: The blade includes a pressing portion and an extending portion connected to each other, wherein the pressing portion is used to contact the surface of the developing roller, and the extending portion extends from a distal end of the pressing portion; When viewed along the first direction, an angle β formed between an extending direction of the pressing portion and an extending direction of the extending portion is greater than 90°.

5. The powder discharging knife according to claim 4, characterized in that: The blade is formed with a contact portion for contacting the surface of the developing roller, and the pressing portion has an end surface facing upstream in the rotation direction of the developing roller, which extends from the contact portion in a direction away from the developing roller, and the angle α formed between the end surface and the tangent plane passing through the contact portion is less than 90°.

6. The powder discharging knife according to claim 1, characterized in that: The powder discharging knife further comprises a reinforcing member arranged on the knife holder, and the reinforcing member and the blade are installed together on the same side of the knife holder.

7. A developing cartridge, detachably mounted to an imaging device, characterized in that: The developing box comprises a powder discharging knife as claimed in any one of claims 1 to 6, and The shell is used to contain carbon powder, and the powder discharge knife is fixedly installed on the shell; a developing roller rotatably disposed in the housing, wherein a rotation axis of the developing roller extends along a first direction; a driving force receiving member for receiving a driving force from the image forming device to drive the rotating member to rotate; a conductive member for receiving power from the image forming device and supplying power to the developing roller; When viewed along the first direction, the conductive member is located outside a projection range of the driving force receiving member.

8. The developing cartridge according to claim 7, wherein: Along a first direction, the housing has a left wall and a right wall separated from each other, the cavity for accommodating carbon powder is located between the left wall and the right wall, the driving force receiving member is directly or indirectly mounted on the left wall, and the conductive member is directly or indirectly mounted on the right wall; The developing roller includes a developing roller shaft and a developing layer covering the outside of the developing roller shaft. The developing layer is used to carry carbon powder. The developing roller passes through the right side wall, and the conductive member contacts the end surface of the developing roller shaft.

9. The developing cartridge according to claim 7, wherein: Along a first direction, the housing has a left wall and a right wall separated from each other, the cavity for accommodating carbon powder is located between the left wall and the right wall, the driving force receiving member is directly or indirectly mounted on the left wall, and the conductive member is directly or indirectly mounted on the right wall; The developing box further includes a supporting portion arranged on the right side wall, the developing roller is supported by the supporting portion, and the conductive member passes through or crosses the right side wall to contact the developing roller.

10. The developing cartridge according to claim 9, wherein: The developing box also includes a sleeve installed in the supporting part. The developing roller includes a developing roller shaft and a developing layer wrapped around the outside of the developing roller shaft. The developing layer is used for carrying carbon powder. The developing roller shaft is supported by the sleeve.

11. The developing cartridge according to claim 9, wherein The supporting portion is provided with an entry port, and the conductive member enters the supporting portion through the entry port and contacts the end surface of the developing roller shaft.

12. The developing cartridge according to claim 7, wherein: The developing box includes a powder feeding roller, which includes a powder feeding roller shaft and a powder feeding layer wrapped around the powder feeding roller shaft. The powder feeding layer is used to supply carbon powder to the developing layer. At least one of the developing roller shaft and the powder feeding roller shaft does not pass through the right side wall.

13. The developing cartridge according to claim 12, wherein: When viewed in the first direction, the developing roller shaft and the powder feeding roller shaft are not exposed toward at least one of both ends in the first direction.

14. The developing cartridge according to claim 12, wherein: Along a first direction, the housing has a left wall and a right wall separated from each other, the cavity for accommodating carbon powder is located between the left wall and the right wall, the driving force receiving member is directly or indirectly mounted on the left wall, and the conductive member is directly or indirectly mounted on the right wall; Along the first direction, the developing roller shaft and the powder feeding roller shaft are not exposed to the right.

15. The developing cartridge according to claim 14, wherein: The developing box also includes a first support portion and a second support portion formed integrally with the right side wall, wherein the first support portion has a first support groove for supporting the powder feeding roller shaft, and the second support portion has a second support groove for supporting the developing roller shaft, and neither the first support groove nor the second support groove is exposed from the right side wall.

16. The developing cartridge according to claim 15, wherein: The powder feeding roller shaft is surrounded by the first support groove, and the developing roller shaft is surrounded by the second support groove.

17. The developing cartridge according to claim 15, wherein: The first supporting groove and the second supporting groove are communicated with each other through the communicating portion.

18. The developing cartridge according to claim 12, wherein: Along a first direction, the housing has a left wall and a right wall separated from each other, the cavity for accommodating carbon powder is located between the left wall and the right wall, the driving force receiving member is directly or indirectly mounted on the left wall, and the conductive member is directly or indirectly mounted on the right wall; Along the first direction, the developing roller shaft and the powder feeding roller shaft are not exposed to the left.

19. The developing cartridge according to claim 18, wherein: The developing box also includes a shielding member formed integrally with the shell, the shielding member extends leftward from the left side wall, and along the first direction, the developing roller shaft and the powder feeding roller shaft are both shielded by the shielding member.

20. The developing cartridge according to claim 19, wherein: The developing cartridge further includes a first driving force receiving member and a first transmitting member, wherein the first driving force receiving member is used to receive the driving force from the driving force output member, and the first transmitting member is coaxially arranged with the first driving force receiving member to transmit the driving force; The shielding member has an opening facing the first transmission member, and a shielding space is formed inside the shielding member. The shielding space faces the first transmission member through the opening.

21. The developing cartridge according to claim 20, wherein: The developing box also includes a third support portion and a fourth support portion integrally formed with the left side wall, wherein the third support portion has a first through hole for supporting the powder feeding roller shaft, and the fourth support portion has a second through hole for supporting the developing roller shaft, and the first through hole and the second through hole are both connected to the shielding space.

22. The developing cartridge according to claim 21, wherein: The powder feeding roller shaft is surrounded by the first through hole, and the developing roller shaft is surrounded by the second through hole.

23. A developing cartridge detachably mounted to an imaging device provided with a detection member, characterized in that: The developing box comprises a powder discharging knife as claimed in any one of claims 1 to 6, and The shell is used to contain carbon powder, and the powder discharge knife is fixedly installed on the shell; a developing roller rotatably disposed in the housing, wherein a rotation axis of the developing roller extends along a first direction; a powder feeding roller, rotatably disposed in the housing, in contact with the developing drum, and used for supplying carbon powder to the developing roller; a stirring frame rotatably disposed in the housing and used for stirring carbon powder; A detection device, configured to interact with the detected component so that parameter information of the developing cartridge is known to the imaging device; a driving force receiving member for receiving a driving force from the image forming device to drive the rotating member to rotate; a driving force transmission assembly comprising a first transmission member, a second transmission member, a third transmission member, a fourth transmission member, and a fifth transmission member, wherein the first transmission member is coaxially arranged with the driving force receiving member, the second transmission member is coaxially arranged with the developing roller, the third transmission member is coaxially arranged with the powder feeding roller, the fifth transmission member is coaxially arranged with the stirring frame, the fourth transmission member is located between the first and fifth transmission members, the fourth transmission member is coupled to both the first and fifth transmission members, and the fifth transmission member is configured to couple with the detection device; The fourth transmission member includes a second small diameter portion and a second large diameter portion coaxially arranged, wherein the diameter of the second small diameter portion is smaller than that of the second large diameter portion, the second large diameter portion is coupled to the first transmission member, and the second small diameter portion is coupled to the fifth transmission member; Along the first direction, the second small diameter portion is farther from the housing than the second large diameter portion.

24. The developing cartridge according to claim 23, wherein: Along the first direction, a distance between the fifth transmission member and the housing is not less than a distance between the fourth transmission member and the housing and / or a distance between the first transmission member and the housing.

25. A developing cartridge, detachably mounted to an imaging device, characterized in that: The developer cartridge includes: a housing for containing carbon powder; a developing roller rotatably disposed in the housing, wherein a rotation axis of the developing roller extends along a first direction; The powder discharge knife according to any one of claims 1 to 6, fixedly mounted on the housing and used to adjust the thickness of the carbon powder layer on the surface of the developing roller; a driving force receiving member for receiving a driving force from the imaging device to drive the rotating member to rotate, and having a rotation axis parallel to the first direction; wherein, The blade holder includes a first part and a second part connected to each other, the blade is supported by the first part, and the first part and the second part are L-shaped; When viewed in the first direction, the edge of the tool holder forms a surface M perpendicular to the rotation axis of the driving force receiving member, and the rotation axis of the driving force receiving member is located outside the surface.

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