A cartridge

Abstract

The utility model discloses a kind of boxes, the box is detachably installed into imaging device, the imaging device includes driving force applying member and brake force applying member, the box includes: shell;Photosensitive drum, rotatable is supported by the shell;Developing roller, rotatable is supported by the shell;The box further includes first coupling, the first coupling is connected to the photosensitive drum or the developing roller so as to be able to transmit driving force;The first coupling includes: first surface, by the engagement with driving force applying member, to receive driving force for rotating first coupling;Second surface, adapted to receive brake force for applying load resisting first coupling rotation by the engagement with brake force receiving member;Third surface, make brake force applying member move relative to driving force applying member.

Description

Technical Field

[0001] This utility model relates to the field of electrophotographic imaging technology, and in particular to a box. Background Technology

[0002] In the field of imaging equipment using electrophotographic processes, it is known that the electrophotographic photosensitive element (hereinafter referred to as the photosensitive drum) and the processing device acting on the photosensitive drum are integrated into a housing. This housing can be removed from the main components of the imaging equipment. According to this housing method, the user can perform maintenance on the imaging equipment without relying on service personnel, thus significantly improving maintainability. Therefore, this type of housing is widely used in imaging equipment.

[0003] In structures where the cartridge can be mounted onto and detached from the main assembly of the imaging device (device main assembly), there exists a configuration where the main assembly and the cartridge are connected via a coupling to input driving force from the device main assembly to the cartridge. The amount of torque required to drive the cartridge varies depending on the cartridge's structure; in existing technologies, the rotating parts of the cartridge are prone to significant speed fluctuations during rotation, preventing smooth rotation and consequently affecting the cartridge's print quality. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a new imaging device and box, mainly achieved through the following technical solutions:

[0005] A cartridge, detachably mounted to an imaging device having a driving force application member and a braking force application member, the cartridge comprising:

[0006] case;

[0007] The photosensitive drum is rotatably supported by the housing;

[0008] The charging component can charge the photosensitive drum;

[0009] The developing roller is rotatably supported by the housing;

[0010] The cartridge further includes a chip having a chip electrical contact surface, an electrode electrically connected to the charging member and having an electrode electrical contact surface, and a rotatable first coupling member operably connected to the photosensitive drum or the developing roller to drive the photosensitive drum or the developing roller to rotate. The first coupling member includes a first surface that can receive a driving force from the driving force applying member for rotating the first coupling member. In the length direction of the processing cartridge, the first surface and the electrical contact surface are located at the same end of the processing cartridge, and the first surface and the electrode electrical contact surface are located at different ends of the processing cartridge.

[0011] The second surface is adapted to receive the braking force of the braking force application member by engaging with the braking force application member, and to apply a load against the rotation of the first coupling member.

[0012] The third surface causes the braking force applying member to move relative to the driving force applying member.

[0013] Furthermore, in the rotational direction of the first coupling member, the third surface extends around the rotational axis of the first coupling member and is at least partially located between the first surface and the second surface.

[0014] Furthermore, the distance from the photosensitive drum to the third surface, measured in the direction extending from the rotation axis of the first coupling member, decreases along the third surface in the rotation direction of the first coupling member.

[0015] Furthermore, the processing box also includes a separating force receiving part, which can receive a first external force to move the developing roller from a contact position that contacts the photosensitive drum to a separating position that separates the developing roller from the photosensitive drum.

[0016] Furthermore, the processing cartridge also includes a contact force receiving portion and a holding portion. The holding portion is used to hold the developing roller in the separation position after the first external force is removed. The contact force receiving portion is configured to receive a second external force to move the holding portion, so that the developing roller moves from the separation position to the contact position. When viewed along the length of the cartridge, the contact force receiving portion is closer to the rotation axis of the photosensitive drum than the separation force receiving portion.

[0017] A cartridge, detachably mounted to an imaging device having a driving force application member and a braking force application member, the cartridge comprising:

[0018] case;

[0019] The photosensitive drum is rotatably supported by the housing;

[0020] The charging component can charge the photosensitive drum;

[0021] The developing roller is rotatably supported by the housing;

[0022] The developing roller has a developing layer and a magnetic core. The magnetic core can adsorb the developing agent, so that the developing agent adheres to the developing layer.

[0023] The cartridge further includes a rotatable first coupling member operably connected to the photosensitive drum or the developing roller to drive the photosensitive drum or the developing roller to rotate. The first coupling member includes:

[0024] A first surface is available to receive the driving force of the driving force applying member for rotating the first coupling member;

[0025] The second surface can receive the braking force of the braking force application member through engagement with the braking force application member, and is used to apply a load to resist the rotation of the first coupling member;

[0026] The third surface causes the braking force applying member to move relative to the driving force applying member.

[0027] Furthermore, in the rotational direction of the first coupling member, the third surface extends around the rotational axis of the first coupling member and is at least partially located between the first surface and the second surface.

[0028] Furthermore, the developing layer is made of metal or rubber.

[0029] Furthermore, the developer is a magnetic developer.

[0030] Furthermore, the developing roller also includes a hollow roller body, the developing layer is disposed on the outer surface of the roller body, and at least a portion of the magnetic core is accommodated in the roller body.

[0031] This invention provides an imaging device and a box used in conjunction with it. By providing a braking force application component in the imaging device and a braking force receiving part in the box that cooperates with the braking force application component, the rotation speed of the rotating part of the box can be suppressed to a certain extent, thereby suppressing speed fluctuations of the rotating part and making the rotation of the rotating part more stable. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the cooperation between the box and the imaging device in Embodiment 1 of this utility model;

[0033] Figure 2 This is a schematic diagram of the first drive unit retracting in Embodiment 1 of this utility model;

[0034] Figure 3 This is a schematic diagram of the first driving unit extending in Embodiment 1 of this utility model;

[0035] Figure 4 This is a schematic diagram of the processing box from a certain angle in Embodiment 1 of this utility model;

[0036] Figure 5 This is another schematic diagram of the processing box in Embodiment 1 of this utility model;

[0037] Figure 6 This is another angled schematic diagram of the processing box in Embodiment 1 of this utility model;

[0038] Figure 7 This is a schematic diagram of the first unit in Embodiment 1 of this utility model;

[0039] Figure 8 This is a cross-sectional schematic diagram of the processing box when the developing roller contacts the photosensitive drum in Embodiment 1 of this utility model;

[0040] Figure 9 This is a cross-sectional schematic diagram of the processing box when the developing roller and the photosensitive drum are separated in Embodiment 1 of this utility model;

[0041] Figure 10 This is a schematic diagram of the first coupling member in embodiment 1 of the utility model;

[0042] Figure 11 This is a schematic diagram of the cooperation between the first coupling member and the first driving unit in Embodiment 1 of this utility model;

[0043] Figure 12 This is a schematic diagram of the cooperation between the box and the imaging device in Embodiment 2 of this utility model;

[0044] Figure 13 This is a schematic diagram of the box at a certain angle in Embodiment 2 of this utility model;

[0045] Figure 14 This is a schematic diagram of the developing roller in Embodiment 2 of this utility model;

[0046] Figure 15 This is an exploded view of the box in Embodiment 2 of this utility model;

[0047] Figure 16 This is a schematic diagram of the box from another angle in Embodiment 2 of this utility model. Detailed Implementation

[0048] Example 1

[0049] like Figure 1-11 As shown, an imaging device 1 and a detachable box 100 installed in the imaging device 1 are illustrated in this utility model. The imaging device 1 and the box 100 will be described in detail below with reference to the specific drawings.

[0050] For ease of description below, the orientations of the imaging device 1 and the cartridge 100 are defined; specifically; the tray 3 supports the cartridge 100 in the imaging device 1 from back to front in the front-back direction; the length direction of the cartridge 100 is the left-right direction, which is also the direction in which the rotation axes of the developing roller 101 and the photosensitive drum 102 of the cartridge 100 extend; in the left-right direction, the coupling member 103 is provided at the right end of the housing; the up-down direction intersects with both the front-back and left-right directions.

[0051] [Imaging equipment]

[0052] like Figure 1-3 As shown, an imaging device 1 is generally rectangular in shape and includes a hollow receiving cavity 2, a door cover 4 that can cover the receiving cavity 2, the door cover 4 being rotatable between an open state that exposes the receiving cavity 2 and a closed state that covers the receiving cavity 2, and a tray 3 that can slide along the front-back direction and be installed from back to front into the receiving cavity 2 when the door cover 4 is in the open state. The tray 3 has four cartridge receiving parts arranged in the front-back direction, and the four cartridge receiving parts can respectively accommodate cartridges 100 with developer colors of yellow, magenta, blue and black. The tray 3 can support the cartridges 100 to be installed into the receiving cavity 2 of the imaging device 1 along the back-to-front direction.

[0053] Imaging device 1 also includes a first drive unit 5 and a second drive unit 6 disposed on the right end wall of the receiving cavity 2. Both units provide driving force to the housing 100 and work together to drive the housing 100. Both the first drive unit 5 and the second drive unit 6 are connected to the door cover 4 via a connecting rod. When the door cover 4 is opened, the first drive unit 5 and the second drive unit 6 retract through the exposure hole 1a1 formed on the right side wall 1a to... Figure 2 In the right side wall 1a of the imaging device 1 shown, when the door cover 4 is closed, the first drive unit 5 and the second drive unit 6 can extend outward in response to the movement of the door cover 4 under the action of the linkage member. Figure 3 As shown in the diagram, the first drive unit 5 and the second drive unit 6 can retract and extend according to the opening / closing operation of the door cover 4.

[0054] The first driving unit 5 includes a driving force applying member 7 and a braking force applying member 8 disposed inside the driving force applying member 7, which can rotate coaxially. An elastic element is connected to the right end of the driving force applying member 7. When the driving force applying member 7 is pushed by an external force from left to right, the driving force applying member 7 will resist the elastic force generated by the elastic element and retract to the right. That is, the driving force applying member 7 can move in the left and right direction relative to the side wall of the imaging device 1 after being subjected to force. A pair of opposing driving protrusions are provided on the inner wall of the driving force applying member 7. The driving protrusions include a driving surface 7a facing the downstream side of the rotation direction of the driving force applying member 7. The driving surface 7a can serve as a driving force transmission surface driving box 100. An outwardly protruding positioning post 9 is also formed between the pair of driving protrusions. The braking force application member 8 includes at least a portion of an exposed force-receiving claw 8a and an operable damper (not shown) connected to the force-receiving claw 8a. The force-receiving claw 8a is configured to receive an external rotational force and then output a braking force (damping) through the damper. The braking force can react on the rotating part of the box 100 to suppress its rotation.

[0055] [box]

[0056] like Figure 4-11 As shown, a cartridge 100 of this invention is illustrated. The cartridge 100 can be supported on a tray 3 and installed into the receiving cavity 2 of the imaging device 1 along a rear-to-front installation direction. The cartridge 100 includes a first unit 110 and a second unit 120 connected to each other. The first unit 110 includes a first housing 101 and a developing roller 103 rotatably supported on the first housing 101. The second unit 120 includes a second housing 102 and a photosensitive drum 104 rotatably supported on the second housing 102 and a charging component 105 supported on the second housing 102 and capable of charging the photosensitive drum 104. The charging component 105 can be a charging roller (composed of a metal shaft and a rubber layer covering the metal shaft) in contact with the photosensitive drum 104, or a corona wire spaced apart from the photosensitive drum 104 (which can generate electrons by breaking down air to charge the photosensitive drum 104), or a component that charges the photosensitive drum 104 by contact with the photosensitive drum 104. The cleaning scraper or cleaning felt that comes into contact with the device can all be used as the charging component 105 of the present invention to charge the photosensitive drum 104. Preferably, the present invention is a charging roller. The first housing 101 and the second housing 102 are combined and referred to as the housing. The first housing 101 can contain the developer. The second housing 102 includes a first cover 111 disposed at the right end of the second housing 102 and a second cover 112 disposed at the left end of the second housing 102, and at least a part of the main body portion 113 located between the first cover 111 and the second cover 112. At least one of the first cover 111, the second cover 112 and the main body portion 113 are integrally formed. This can effectively reduce the number of molds when producing the first cover 111, the second housing 112 and the main body portion 113, thereby reducing the production cost of the box 100 and improving the assembly efficiency of the box 100.

[0057] When cartridge 100 performs printing, the developing roller 103 carries developer, and the charging unit 105 can uniformly charge the photosensitive drum 104. After the charged photosensitive drum 104 is selectively irradiated by the laser in the imaging device, an electrostatic latent image can be formed on the outer surface of the photosensitive drum 104. The developing roller 103 can transport the developer carried on the developing roller 103 to the photosensitive drum 104 through contact with the photosensitive drum 104 to develop the electrostatic latent image on it, thus forming a developer image on the photosensitive drum 104. Subsequently, the developer image can be transferred to the transfer belt of the imaging device through contact between the photosensitive drum 104 and the transfer belt. Finally, the transfer belt can transfer the developer image to the recording medium (such as paper).

[0058] The housing 100 also includes a first coupling member 108 disposed on the second unit 120 and a second coupling member 109 disposed on the first unit 110. The first coupling member 108 and the second coupling member 109 are disposed at the right end of the housing in a left-right direction. The first cover 111 can cover at least a portion of the first coupling member 108 or the second coupling member 109 to position the first coupling member 108 or the second coupling member 109. The first coupling member 108 can not only be coupled to the first driving unit 5 of the imaging device to receive the rotational driving force output by the driving force applying member 7, causing the first coupling member 108 to drive the photosensitive drum 104 to rotate, but also receive the braking force output by the braking force applying member 8 after coupling with the first driving unit 5, thereby suppressing photosensitive... The rotation of the drum 104 makes the rotation of the photosensitive drum 104 more stable; the second coupling member 109 can be coupled to the second drive unit 6 so that it can drive the developing roller 103 to rotate; alternatively, in some embodiments, the second coupling member 109 can be configured with a structure similar to the first coupling member 108, that is, the second coupling member 109 can also suppress the speed fluctuation of the developing roller 103, or another embodiment can be adopted, that is, the second coupling member 109 can be eliminated and only the first coupling member 108 can be retained, so that the first coupling member 108 can drive the photosensitive drum 104 and the developing roller 103 to rotate; the specific structure of the first coupling member 1085 and how the first coupling member 108 cooperates with the first drive unit 5 will be described in detail below.

[0059] The housing 100 also includes an electrode 115, which has an electrode electrical contact surface 115a that can make electrical contact with the power supply component of the imaging device. In the left-right direction, the electrode electrical contact surface 115a is located at the left end of the housing. The electrode electrical contact surface 115a is configured to supply power to the charging component 105. That is, the electrode 115 can receive power from the imaging device and supply the received power to the charging component 105 to ensure that the charging component 105 can charge the photosensitive drum 104. Furthermore, the housing 100 also includes a chip 106, which has a chip electrical contact surface 106a that makes electrical contact with the electrical contacts of the imaging device. In the left-right direction, the chip electrical contact surface 106a is located at the right end of the housing to be as far away from the electrode electrical contact surface 115a as possible to avoid electrical interference between the two after being connected to power.

[0060] To prevent deformation of the outer surface of the developing roller 103 due to prolonged contact with the photosensitive drum 104, which could lead to image degradation, the developing roller 103 and photosensitive drum 104 should be kept separated as much as possible when the cartridge 100 is not performing a printing task. Therefore, the cartridge 100 also includes a first force receiver, a second force receiver, and a holding portion 114 to maintain a stable separation between the developing roller 103 and the photosensitive drum 104. In some embodiments, the first force receiver and the second force receiver can be integrally formed. The first force receiver includes a contact force receiving portion 107, and the second force receiver includes a separating force receiving portion 106. In the left-right direction, the contact force receiving portion 107 and the separating force receiving portion 106 are located at the right end of the housing; in the second direction, the contact force receiving portion 107 and the separating force receiving portion 106 are located at the lower end of the housing. Viewed from the right end to the left end of the housing along the left-right direction, the contact force receiving portion... The first unit 110 is closer to the rotation axis of the photosensitive drum than the force receiving portion 106. When the first unit 110 is in the developing position and the cartridge 100 does not need to perform a printing task, the developing position is when the first unit 110 is in contact with the developing roller 103 and the photosensitive drum 104. The force receiving portion 106 is configured to receive the first pushing force from the pushing member of the imaging device, causing the first unit 110 to move to the separating position (the separating position is when the first unit 110 is at least partially separated from the developing roller 103 and the photosensitive drum 104). The developing roller 103 and the photosensitive drum 104 have a separation distance d. During the movement of the first unit 110, the holding portion 114 is movable and stably abuts between the first housing 101 and the second housing 102. Even if the first pushing force is subsequently removed from the force receiving portion 106, the separation of the developing roller 103 and the photosensitive drum 104 can be stably maintained by the holding portion 114. Specifically, as shown in the figure... Figure 9 As shown; when the first unit 110 is in the separated position and the cartridge 100 needs to perform a printing task, the contact force receiving portion 107 is configured to receive the second pushing force of the pushing member of the imaging device, and the holding portion 114 disengages from the contact with the second housing 102, causing the first unit 110 to move to the developing position, specifically as follows: Figure 8 As shown.

[0061] See attached document Figure 3-10 The first coupling member 108 is specifically disposed at the right end of the photosensitive drum 104. The first coupling member 108 includes a surface 131 that is arranged intersecting the left and right directions and facing the right end of the box 100, and a protrusion 132 that protrudes to the right from the surface 131. The protrusion 132 includes a first surface 132a, a second surface 132b and a third surface 132c.

[0062] The first surface 132a intersects with surface 131 and extends in a direction away from surface 131. The first surface 132a is arranged facing the upstream side of the rotation direction of the first coupling member 108 and is configured to engage with the driving surface 7a of the driving force applying member 7 to receive the driving force output therefrom. The rotation direction of the first coupling member 108 described above is the direction in which the first coupling member 108 is driven to rotate by the first driving unit 5 when it is installed in the imaging device 1. Figure 4 The clockwise direction in the middle.

[0063] The second surface 132b is arranged facing the downstream side of the first coupling member 108 in the rotation direction. In the rotation direction of the first coupling member 108, the second surface 132b is located downstream of the first surface 132a on the protrusion 132. The second surface 132b extends in a direction inclined relative to the rotation axis of the first coupling member 108. Furthermore, the second surface 132b is configured to engage with the force-receiving claw 8a of the braking force application member 8 to receive a braking force opposite to the driving force, thereby suppressing speed fluctuations of the photosensitive drum 104, improving the rotational stability of the photosensitive drum 104, and preventing the first coupling member 108 from disengaging from the first drive unit 5. Therefore, the inclined structure of the second surface 132b further improves the installation stability of the first coupling member 108.

[0064] The protrusion 132 also includes a third surface 132c arranged around the rotation axis of the first coupling member 108. The third surface 132c extends from an upstream position of the first surface 132a to a position adjacent to the second surface 132b in the rotation direction of the first coupling member 108. Measured in the rotation axis direction of the first coupling member 108, the distance from the left end of the first coupling member 108 to the third surface 132c decreases along the third surface 132c in the rotation direction of the first coupling member 108. When the first coupling member 108 is installed in the imaging device, braking force is applied. The force-receiving claw 8a of the addition member 8 can abut against the third surface 132c and can move relative to the driving force application member 7 under the guidance of the third surface 132c. On the one hand, it can make the force-receiving claw 8a accurately engage with the second surface 132b, so that the first coupling member 108 can receive the braking force output by the braking force application member 8. On the other hand, it is precisely because of the guiding effect of the third surface 132c that the force-receiving claw 8a can move, avoiding the problem that the force-receiving claw 8a and the driving surface 7a will always be in contact, which would prevent the first surface 132a from engaging with the driving surface 7a.

[0065] This invention provides an imaging device and a box used in conjunction with it. By providing a braking force application component in the imaging device and a braking force receiving part in the box that cooperates with the braking force application component, the rotation speed of the rotating part of the box can be suppressed to a certain extent, thereby suppressing speed fluctuations of the rotating part and making the rotation of the rotating part more stable.

[0066] Example 2

[0067] like Figure 12-16 As shown, an imaging device and a cartridge 200 used in conjunction with the imaging device are illustrated in Embodiment 2 of this utility model. The cartridge 200 is similar to the cartridge in Embodiment 1 above, for example, the structure and function of the first coupling member 208 are largely the same. This embodiment 2 will not elaborate on these largely similar structures. The difference is that the cartridge 200 is a monochrome cartridge, that is, the cartridge 200 only contains black developer for printing black images. Specifically, the developing roller 203 of the cartridge 200 is constructed as a magnetic roller structure. The magnetic roller includes a hollow roller body 203a (also referred to as a sleeve) and at least a portion of the roller body 203a. The magnetic core 203b in the roller body 203a is magnetic. The outer surface of the roller body 203a is a developing layer 203a1, which can be made of metal or rubber. This is not a limitation. The developer contained in the first housing 201 of the cartridge 200 is also a magnetic developer. In the specific developing process, the magnetic developer can be attracted to the developing layer 203a1 by the developing roller 203, so that the developing layer 203a1 is covered with magnetic developer. Then, the magnetic developer can be transported to the exposed photosensitive drum to develop the electrostatic latent image on the photosensitive drum.

[0068] For ease of description of the technical solution of the present invention, the orientation of the cartridge 200 is defined as follows: the direction of the rotation axis of the photosensitive drum 204 is the left-right direction; the first coupling member 208 is disposed at the right end of the cartridge 200 in the left-right direction; the developing roller axis C1 and the photosensitive drum axis are arranged sequentially from back to front, and the front-back direction is perpendicular to the left-right direction; the up-down direction is perpendicular to the left-right direction and the front-back direction; the rib 245 (described in detail below) is arranged at the upper end of the cartridge 200 in the up-down direction.

[0069] like Figure 15-16 As shown, a cartridge 200 in this embodiment 2 is illustrated. The cartridge 200 is detachably installed into an imaging device having a positioning switch (also referred to as a protective component). When the cartridge 200 is not installed into the imaging device, the protective component can shield the driving force application component 5 to prevent it from being exposed towards the mounting portion of the imaging device used to install the cartridge 200. After the cartridge 200 is installed into the imaging device, the cartridge 200 can cooperate with the imaging device to perform printing tasks. The cartridge 200 in this utility model will be described in detail below.

[0070] The box 200 also includes a rib 245 disposed on the second unit 220 and located at the upper right end. The rib 245 is constructed as a rib plate or rib extending outward from the upper surface of the second unit 220 and in the front-back direction. There are multiple ribs 245, which are arranged sequentially in the left-right direction, and grooves are formed between adjacent ribs 245. When the box 200 is installed into the imaging device along the installation direction, the ribs 245 on the box 200 cooperate with the protective member of the imaging device, so that the protective member releases the installation restriction of the imaging device on the box 200. That is, the protective member can move from a first position that blocks the driving force application member 5 to a second position that does not block the driving force application member 5. At this time, the box 200 can be further installed so that the first coupling member 208 (described in detail below) can be normally coupled with the driving force application member 5. The box 200 also includes a rib plate or rib rib that protrudes outward from the upper surface of the second unit 220 and extends in the front-back direction. A coupling gear 241 is coaxially arranged at the right end of the photosensitive drum 204 and with the first coupling member 208. The coupling gear 241 can rotate in response to the rotation of the first coupling member 208. Furthermore, the cartridge 200 also includes a developing roller gear 242 arranged at one end of the developing roller 203 and a stirring rack gear 243 arranged at one end of the stirring rack (not shown). The developing roller gear 242 meshes with the coupling gear 241, and the stirring rack gear 243 meshes with the developing roller gear 242. That is, the rotational driving force received by the first coupling member 208 from the driving force application member 5 of the imaging device can be sequentially transmitted to the coupling gear 241, the developing roller gear 242, and the stirring rack gear 243. In other words, the first coupling member 208 can simultaneously drive the photosensitive drum 204, the developing roller 203, and the stirring rack. This helps to simplify the driving structure of the cartridge 200 and reduce the production cost of the cartridge 200.

[0071] Unlike Embodiment 1 described above, the chip electrical contact surface 206a of the chip 206 in the box 200 is located at the left end of the box 200, that is, on a different side of the box 200 from the first coupling member 208 in the left-right direction. The electrode electrical contact surface 215a of the electrode 215 in the box 200 is still located at the left end of the box 200. In other words, both the chip electrical contact surface 206a and the electrode electrical contact surface 215a are located at the left end of the box 200. However, in the left-right direction, the chip electrical contact surface 206a is closer to the right end of the box 200 than the electrode electrical contact surface 215a. In the front-back direction, the electrode electrical contact surface 215a is closer to the front end of the box 200 than the chip electrical contact surface 206a. That is, in the mounting direction of the box 200, the electrode electrical contact surface 215a is located downstream of the chip electrical contact surface 206a.

Claims

1. A cartridge, detachably mounted to an imaging device having a driving force application member and a braking force application member, the cartridge comprising: case; The photosensitive drum is rotatably supported by the housing; The charging component can charge the photosensitive drum; The developing roller is rotatably supported by the housing; The feature is that the cartridge further includes a chip having a chip electrical contact surface, an electrode electrically connectable to the charging element and having an electrode electrical contact surface, and a rotatable first coupling member, the first coupling member being operably connected to the photosensitive drum or the developing roller to drive the photosensitive drum or the developing roller to rotate, the first coupling member comprising: A first surface is available to receive the driving force of the driving force applying member for rotating the first coupling member. In the length direction of the processing box, the first surface and the electrical contact surface are located at the same end of the processing box, and the first surface and the electrode electrical contact surface are located at different ends of the processing box. The second surface is adapted to receive the braking force of the braking force application member by engaging with the braking force application member, and to apply a load against the rotation of the first coupling member. The third surface causes the braking force applying member to move relative to the driving force applying member.

2. The box according to claim 1, characterized in that, In the rotational direction of the first coupling member, the third surface extends around the rotational axis of the first coupling member and is at least partially located between the first surface and the second surface.

3. The box according to claim 2, characterized in that, The distance from the photosensitive drum to the third surface, measured in the direction extending along the rotation axis of the first coupler, decreases along the third surface in the rotation direction of the first coupler.

4. The box according to claim 1, characterized in that, The processing box further includes a separating force receiving part, which can receive a first external force to move the developing roller from a contact position that contacts the photosensitive drum to a separating position that separates the developing roller from the photosensitive drum.

5. The box according to claim 4, characterized in that, The processing cartridge further includes a contact force receiving portion and a holding portion. The holding portion is used to hold the developing roller in the separation position after the first external force is removed. The contact force receiving portion is configured to receive a second external force to move the holding portion, so that the developing roller moves from the separation position to the contact position. When viewed along the length of the cartridge, the contact force receiving portion is closer to the rotation axis of the photosensitive drum than the separation force receiving portion.

6. A cartridge, detachably mounted to an imaging device having a driving force application member and a braking force application member, the cartridge comprising: case; The photosensitive drum is rotatably supported by the housing; The charging component can charge the photosensitive drum; The developing roller is rotatably supported by the housing; The developing roller is characterized by having a developing layer and a magnetic core, wherein the magnetic core can adsorb the developing agent, thereby allowing the developing agent to adhere to the developing layer; The cartridge further includes a rotatable first coupling member operably connected to the photosensitive drum or the developing roller to drive the photosensitive drum or the developing roller to rotate. The first coupling member includes: A first surface is available to receive the driving force of the driving force applying member for rotating the first coupling member; The second surface can receive the braking force of the braking force application member through engagement with the braking force application member, and is used to apply a load to resist the rotation of the first coupling member; The third surface causes the braking force applying member to move relative to the driving force applying member.

7. The box according to claim 6, characterized in that, In the rotational direction of the first coupling member, the third surface extends around the rotational axis of the first coupling member and is at least partially located between the first surface and the second surface.

8. The box according to claim 6, characterized in that, The developing layer is made of metal or rubber.

9. The box according to claim 6, characterized in that, The developer is a magnetic developer.

10. The box according to claim 6, characterized in that, The developing roller also includes a hollow roller body, the developing layer is disposed on the outer surface of the roller body, and at least a portion of the magnetic core is housed in the roller body.

Images