Processing box

Abstract

This utility model provides a processing box that can be detachably installed on an imaging device. The imaging device includes a driving force output member having a retracted state and an extended state. Before the processing box is installed on the imaging device, the driving force output member is in the retracted state. When the processing box is used for imaging, the driving force output member changes from the retracted state to the extended state, and the driving force output member transmits driving force to the processing box. The processing box includes a developing box, which includes an actuating component having a first state and a second state with different positions. When the first driving force output part is disengaged from the driving force receiving member, and the driving force output member starts to rotate from rest, the actuating component forces the driving force output member to change from the retracted state to the extended state. In this way, the space required for the movement of the actuating component can be reduced, thereby reducing the space occupied by the actuating component.

Description

Technical Field

[0001] This utility model relates to electrophotographic imaging technology, and more particularly to a processing box that can be detachably installed on an electrophotographic imaging device. Background Technology

[0002] A processing cartridge is a consumable that can be detachably installed into an imaging device. The processing cartridge includes a developing cartridge and a drum cartridge that are connected to each other. The drum cartridge includes a drum housing and a photosensitive drum that is rotatably disposed in the drum housing. The surface of the photosensitive drum is used to form an electrostatic latent image. The developing cartridge includes a developing housing, a developing roller that is rotatably disposed in the developing housing, and a developing roller drive gear for receiving driving force to drive the developing roller to rotate. A powder hopper for containing developer is formed inside the developing housing. The developing roller is used to carry the developer and deliver the developer to the photosensitive drum, so that the electrostatic latent image on the surface of the photosensitive drum is developed.

[0003] The imaging device is provided with a driving force output component for outputting driving force. The driving force output component is provided with a first driving force output part and a second driving force output part. The first driving force output part is located at the axial end of the driving force output component and is used to drive the photosensitive drum to rotate. The second driving force output part is arranged along the circumferential direction of the driving force output component and is used to mesh with the developing roller driving gear to drive the developing roller to rotate.

[0004] The driving force output component has an extended state and a retracted state. Before the processing cartridge starts working, the driving force output component is in a retracted state, retracted into the imaging device. When the processing cartridge starts working, the driving force output component is pulled out by the developing roller driving gear through the meshing of the second driving force output part, so that the driving force output component can be combined with the driving force receiving component in the processing cartridge. At this time, the driving force output component is in an extended state.

[0005] In the aforementioned processing box, the developing roller drive gear meshes with both the second driving force output unit and other gears in the processing box to drive, for example, a stirring rack disposed in the developing housing for stirring the developer to rotate. This design results in a large developing roller drive gear with high precision requirements, making it difficult to manufacture. Utility Model Content

[0006] This utility model provides a processing box that adopts the following technical solution:

[0007] The processing cartridge is detachably mounted to the imaging device, which includes a drive force output component, a main assembly, and a processing cartridge receiving space formed in the main assembly. The drive force output component includes a first drive force output part and a second drive force output part arranged coaxially. The drive force output component has a retracted state and an extended state. Before the processing cartridge is installed into the processing cartridge receiving space, the drive force output component is in the retracted state within the main assembly. When the processing cartridge is installed into the processing cartridge receiving space and imaging is performed, the drive force output component changes from the retracted state to the extended state, and the drive force output component transmits a drive force to the processing cartridge.

[0008] The processing box includes:

[0009] The drum housing includes a drum shell, a driving force receiver, and a photosensitive drum rotatably disposed in the drum shell. The photosensitive drum rotates about a first rotation axis, and the surface of the photosensitive drum is used to form an electrostatic latent image. The driving force receiver is used to engage with a first driving force output section to receive the driving force that drives the photosensitive drum to rotate.

[0010] The developing cartridge, combined with the drum cartridge, includes a developing housing and a developing roller rotatably disposed in the developing housing. The developing roller rotates about a second rotation axis, which is parallel to a first rotation axis. The direction parallel to the second rotation axis is the left-right direction. The developing roller is used to carry the developer contained in the developing housing and supply the developer to the photosensitive drum to develop the electrostatic latent image.

[0011] The processing box also includes a functional component for cooperating with the second driving force output section and forcing the driving force output member to change from a retracted state to an extended state;

[0012] At least a portion of the actuating component has a first state and a second state with different positions. When the first driving force output part is disengaged from the driving force receiver, and the driving force output part starts to rotate from rest, the actuating component forces the driving force output part to change from a retracted state to an extended state by engaging with the second driving force output part. When the driving force output part is in the extended state, the first driving force output part and the driving force receiver are engaged with each other, and at least a portion of the actuating component is in the second state.

[0013] The actuating component includes an actuating body, an actuating member protruding from the actuating body, and at least one retaining member. The actuating member is used to engage with a second driving force output portion, and the retaining member is used to force the actuating member to change to a first state.

[0014] During the transition between the first and second states, the actuator moves in a straight line or in a curved line.

[0015] The first plane passes through the first and second rotation axes, the second plane is perpendicular to the first plane and is also parallel to the left and right directions, and the first and second planes are both perpendicular to the third plane.

[0016] When the line containing the direction of motion of the actuator is parallel to the first plane and perpendicular to the left-right direction,

[0017] Alternatively, when the line containing the direction of motion of the actuator lies within the first plane and is perpendicular to the left-right direction,

[0018] Alternatively, the line containing the direction of motion of the actuator lies within the third plane, and the line containing the direction of motion of the actuator also intersects with the first plane;

[0019] The actuator in the second state is closer to the second rotation axis than the actuator in the first state.

[0020] The first plane passes through the first axis of rotation and the second axis of rotation. The second plane is perpendicular to the first plane and is also parallel to the left and right directions.

[0021] When the line containing the direction of motion of the actuator is parallel to the second plane and perpendicular to the left-right direction,

[0022] Alternatively, when the line containing the direction of motion of the actuator lies within the second plane and is perpendicular to the left-right direction;

[0023] The actuator in the second state is further away from the first plane than the actuator in the first state.

[0024] Along the left-right direction, one end of the processing box equipped with the driving force receiving element is the driving end, and the other end is the non-driving end;

[0025] The first plane passes through the first axis of rotation and the second axis of rotation, the second plane is perpendicular to the first plane, and the second plane is also parallel to the left and right directions;

[0026] When the line containing the direction of motion of the actuator is parallel to the first plane and also parallel to the left-right direction,

[0027] Alternatively, when the line containing the direction of motion of the actuator lies within the second plane and is parallel to the left and right directions;

[0028] Along the direction of movement of the actuator, the actuator in the second state is further away from the driving end or further away from the non-driving end than the actuator in the first state.

[0029] The first plane passes through the first and second rotation axes. The second plane is perpendicular to the first plane and parallel to the left and right directions. The first and second planes are both perpendicular to the third plane. During the transition between the first and second states, the straight line containing the motion direction of the actuator is simultaneously inclined relative to the first, second, and third planes.

[0030] When the driving force output component is in the retracted state and the actuating component is in the first state, as the driving force output component rotates, the driving force output component changes from the retracted state to the extended state, and the actuating component changes from the first state to the second state.

[0031] When the driving force output component is in the retracted state and the actuating component is in the second state, as the driving force output component rotates, the actuating component first changes from the second state to the first state. As the driving force output component changes from the retracted state to the extended state, the actuating component changes from the first state to the second state.

[0032] When the first driving force output unit is disengaged from the driving force receiving unit, and the driving force output unit starts to rotate from rest, the actuating unit changes from the first state to the second state under the triggering action of the first trigger unit set in the imaging device or the first trigger unit set in the processing box; when the first trigger unit is set in the processing box, the first trigger unit is set to follow the rotating part in the processing box in linkage, and the rotating part includes at least the developing roller and the photosensitive drum.

[0033] Compared with the prior art, the processing box provided by this utility model is provided with an action component, and the imaging device is provided with a driving force output component for outputting driving force. The action component in the action component can engage with the second driving force output part. During the rotation of the driving force output component, the action component does not rotate. In this way, the space required for the action component to move can be reduced, thereby reducing the space occupied by the action component. In addition, the load on the imaging device can also be reduced. Attached Figure Description

[0034] Figure 1 This is a perspective view of the processing box after it is assembled according to this utility model.

[0035] Figure 2 This is an exploded view of the driving force output component and the drum and developing cartridges of the processing box involved in this utility model.

[0036] Figure 3 This is a perspective view of some components of the developing cartridge of the processing cartridge involved in this utility model.

[0037] Figure 4 This is a perspective view of the driving force output component of the imaging device involved in this utility model.

[0038] Figure 5This is an exploded view of the driving force output component and some components of the developing cartridge involved in this utility model.

[0039] Figure 6 This is a perspective view of the functional components of the processing box involved in this utility model.

[0040] Figure 7A This is a perspective view of the processing box components involved in this utility model when engaged with the second driving force output part.

[0041] Figure 7B This is a plan view of the processing box's functional components engaging with the second driving force output part, according to this utility model.

[0042] Figure 8A This is a perspective view of the processing box components, the first end cap, the transfer components, the photosensitive drum, and the developing roller involved in this utility model.

[0043] Figure 8B It is a plan view obtained by observing the main body of the working component, the developing roller, and the photosensitive drum from right to left.

[0044] Figure 8C This is a planar schematic diagram showing the positional relationship between the functional component of the processing box involved in this utility model and the developing roller and the photosensitive drum in the first and second states.

[0045] Figure 9 This is a perspective view of the first end cap of the processing box involved in this utility model. Detailed Implementation

[0046] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0047] The processing cartridge 100 can be detachably installed into the imaging device, such as... Figure 1 and Figure 2 As shown, the processing cartridge 100 includes a developing cartridge 10 and a drum cartridge 20 connected together. The drum cartridge 20 includes a drum housing 1 and a photosensitive drum 2 rotatably disposed in the drum housing 1. The photosensitive drum 2 rotates about a first rotation axis L1 and along a first rotation direction R1. The surface of the photosensitive drum 2 is used to form an electrostatic latent image. The developing cartridge 10 includes a developing housing 3 and a developing roller 4 rotatably disposed in the developing housing 3. The developing roller 4 rotates about a second rotation axis L2. The first rotation axis L1 and the second rotation axis L2 are parallel to each other. A powder hopper 31 for containing developer is formed inside the developing housing 3. The developing roller 4 is used to carry developer and supply developer to the photosensitive drum 2 disposed opposite to the developing roller 4, so that the electrostatic latent image is developed. The drum housing 1 and the developing housing 3 can be regarded as at least part of the processing cartridge housing. For ease of description and understanding below, the direction parallel to the second rotation axis L2 is defined as the left-right direction.

[0048] like Figure 2 , Figure 4 and Figure 5 As shown, the imaging device is equipped with a driving force output component 200 for outputting driving force. The driving force output by the driving force output component 200 is used to directly drive the photosensitive drum 2 to rotate. The drum box 20 also includes a driving force receiver 21 and a driving force transmitter 22 (e.g., Figure 8A As shown), the driving force receiving member 21 is used to receive driving force from the driving force output member 200, and the driving force transmitting member 22 is at least used to transmit the driving force received by the driving force receiving member 21 to the developing roller 4; specifically, the driving force output member 200 includes a driving force output member body 200a and a first driving force output part 200b and a second driving force output part 200c coaxially disposed on the driving force output member body 200a. The first driving force output part 200b is used to combine with the driving force receiving member 21 so that the photosensitive drum 2 is driven, and the second driving force output... Part 200c is used to cooperate with the following functional component 40 to make the driving force output member 200 move toward the photosensitive drum 2; in the left-right direction, the first driving force output part 200b is provided at the axial end of the driving force output member body 200a, and the second driving force output part 200c is provided around the circumference of the driving force output member body 200a. When the processing box 100 is installed in the imaging device, the first driving force output part 200b is closer to the processing box 100 / driving force receiver 21 than the second driving force output part 200c.

[0049] Along the left-right direction, the processing box 100 is provided with the driving force receiving member 21 at one end as the driving end and the other end as the non-driving end, and the first end cover 30 described below is located at the driving end.

[0050] The imaging device also includes a main component and a processing box receiving space formed in the main component. The driving force output member 200 has an extended state and a retracted state. Before the processing box 100 is installed into the processing box receiving space, the driving force output member 200 is in a retracted state within the main component. When the processing box 100 is installed into the processing box receiving space and imaging is performed, the driving force output member 200 is pulled out from inside the imaging device by the actuating component 40. In other words, the driving force output member 200 changes from the retracted state to the extended state, so that the driving force output member / second driving force output part 200c and the driving force receiving member 21 are combined with each other. The driving force output member 200 transmits driving force to the processing box 100. At this time, the driving force output member 200 is in the extended state and can rotate along the second rotation direction R2.

[0051] In some embodiments, the second driving force output section 200c is configured as a helical gear, and the second driving force output section 200c includes a plurality of teeth 200c1, wherein a tooth groove 200c2 is formed between two adjacent teeth 200c1.

[0052] like Figure 2 As shown, the developing roller 4 includes a developing roller shaft 4a and a developing roller layer 4b disposed radially outside the developing roller shaft 4a. The developing roller layer 4b is used to carry the developer. The developing cartridge 10 also includes a developing roller drive gear 5, which is mounted on the developing roller shaft 4a. In other words, the developing roller drive gear 5 is supported by the developing roller shaft 4a. In some embodiments, the developing roller drive gear 5 is used to receive driving force from the driving force transmission member 22 of the drum 20 to drive the developing roller 4 to rotate.

[0053] like Figure 3 , Figure 5 and Figure 6 As shown, the processing cartridge housing also includes a first end cap 30 detachably connected to the drum housing 1 / developer housing 3. The processing cartridge 100 also includes at least a portion of an action component 40 that is movable relative to the processing cartridge housing. The action component 40 is used to cooperate with the drive force output member 200 to force the drive force output member 200 to move from a retracted state to an extended state. The drive force receiving member 21 can cooperate with the drive force output member 200 / first drive force output part 200b to receive the drive force. In the following description, the action component 40 is installed on the first end cap 30 as an example.

[0054] In some embodiments, the processing cartridge 100 further includes a transmission assembly 50 for transmitting driving force and at least a support bracket (not shown) for supporting the transmission assembly 50. The components extending from the developing housing 3, the drum housing 1, or the first end cap 30 in the processing cartridge 100, or the support bracket and other components that can stably support the action assembly 40, can be regarded as the processing cartridge housing.

[0055] The actuating component 40 includes an actuating body 41, an actuating member 42, and a retaining member 43. The actuating member 42 is configured to protrude from the actuating body 41 and engage with the second driving force output part 200c. As the second driving force output part 200c rotates with the driving force output part body 200a, the actuating member 42 forces the driving force output part 200 to move toward the photosensitive drum 2. In other words, the actuating member 42 forces the driving force output part 200 to change from a retracted state to an extended state.

[0056] The actuating component 40 / actuator 42 is movable relative to the processing box housing. Specifically, the actuating component 40 / actuator 42 has a first state and a second state with different positions. When the actuator 42 is in the first state, such as... Figure 7A and Figure 7B As shown, the actuating member 42 can engage with the second driving force output part 200c. Specifically, the actuating member 42 can enter the tooth groove 200c2. At this time, the actuating member 42 and the tooth 200c1 abut at the contact point S. Under the action of external force, the actuating member 42 can change from the first state to the second state. When the actuating member 42 is in the second state, the driving force output member 200 is in the extended state. At this time, the driving force output member 200 is engaged with the driving force receiving member 21, and the actuating member 42 cannot engage with the second driving force output part 200c. Specifically, the actuating member 42 does not interact with the tooth 200c1. The external force can come from the driving force output member 200, or the processing cartridge housing, or a component that rotates with the photosensitive drum 2, or a component that rotates with the developing roller 4.

[0057] At least one retainer 43 is provided, and the retainer 43 is used to force the actuator 42 to change toward the first state.

[0058] In some implementations, such as Figure 4 and Figure 6 As shown, the actuating member 42 has a contacted portion 42a, and the driving force output member 200 / driving force output member body 200a has a contacted portion 200a1. The contacted portion 200a1 and the first driving force output portion 200b are respectively located at both ends of the second driving force output portion 200c, or in other words, the second driving force output portion 200c is located between the contacted portion 200a1 and the first driving force output portion 200b. When the driving force output member 200 is in the extended state, the contacted portion 200a1 is used to contact / press against the contacted portion 42a, forcing the actuating member 42 to change from the first state to the second state. In some specific embodiments, the contacted portion 42a is formed as at least the upward-facing surface of the actuating member 42, and the contacted portion 200a1 is set as the radially outer surface of the driving force output member body 200a.

[0059] In some embodiments, the abutment portion 200a1 is configured as the side of the drive force output body 200a facing the processing box housing.

[0060] like Figure 7A and Figure 7BAs shown, when the driving force output member 200 and the driving force receiving member 21 are disengaged, when the driving force output member 200 / driving force output member body 200a begins to rotate, the actuating member 42 abuts against the second driving force output part 200c at the abutment point S. Since the actuating member 42 does not rotate, it generates a force F on the driving force output member 200, pulling the second driving force output member 200 towards the photosensitive drum 2. The force F causes the driving force output member 200 to move from the retracted state to the extended state; as Figure 8A As shown, the plane passing through the first rotation axis L1 and the second rotation axis L2 is the first plane M. The first plane M is parallel to the left and right directions. The second plane N is perpendicular to the first plane M and is also parallel to the left and right directions. The first plane M and the second plane N are both perpendicular to the third plane P. Therefore, the third plane P is also perpendicular to the left and right directions.

[0061] During the transition between the first state and the second state, the actuator 42 moves in a straight line or in a curved line. When the actuating component 40 / actuator 42 moves in a curved line relative to the processing box housing, the actuator 42 does not move in a circular motion. The direction of movement of the actuator 42 can be parallel to any one of the first plane M, the second plane N, and the third plane P, or the direction of movement of the actuator 42 can be inclined relative to any one of the first plane M, the second plane N, and the third plane P.

[0062] In some implementations, such as Figure 8B As shown, when the line containing the direction of movement of the actuator 42 is parallel to the first plane M and perpendicular to the left and right direction, or when the line containing the direction of movement of the actuator 42 is located within the first plane M and perpendicular to the left and right direction, the actuator 42 in the second state will be closer to the second rotation axis L2 or farther away from the first rotation axis L1 than the actuator 42 in the first state.

[0063] In some implementations, such as Figure 8CAs shown, when the straight line of the movement direction of the actuator 42 is located in the third plane P, the straight line of the movement direction of the actuator 42 can also intersect the first plane M. Taking the geometric center of the actuator 42, the center of gravity of the actuator 42, or the contact point S between the actuator 42 and the second driving force output part 200c as a reference, the actuator 42 in the first state is projected into the third plane P which is perpendicular to the left and right direction to obtain the first projection point A. The actuator 42 in the second state is projected into the third plane P to obtain the second projection point B. The first projection point A is then projected into the first plane M to obtain the third projection point C. The second projection point B is then projected into the first plane M to obtain the fourth projection point D. Compared with the third projection point C, the fourth projection point D is closer to the second rotation axis L2, or in other words, compared with the third projection point C, the fourth projection point D is farther away from the first rotation axis L1.

[0064] In some embodiments, when the line containing the movement direction of the actuator 42 is parallel to the second plane N and perpendicular to the left-right direction, or when the line containing the movement direction of the actuator 42 is located within the second plane N and perpendicular to the left-right direction, the actuator 42 in the second state is further away from the first plane M than the actuator 42 in the first state.

[0065] In some embodiments, when the line containing the movement direction of the actuator 42 is parallel to the first plane M and parallel to the left and right directions, or when the line containing the movement direction of the actuator 42 is located in the second plane N and the line containing the movement direction of the actuator 42 is also parallel to the left and right directions, along the movement direction of the actuator 42, the actuator 42 in the second state is further away from the non-driving end or further away from the driving end than the actuator 42 in the first state.

[0066] In some embodiments, when the straight line containing the direction of movement of the actuator 42 is simultaneously inclined relative to the first plane M, the second plane N, and the third plane P, the two states of the actuator 42 still have the aforementioned relative positional relationship in this deformation mode.

[0067] In summary, when the driving force output member 200 / first driving force output part 200b is disengaged from the driving force receiver 21, the driving force output member 200 is in a retracted state, and the actuating component 40 / acting member 42 can be in either the first state or the second state. When the driving force output member 200 starts to rotate from rest, the actuating component 40, by engaging with the second driving force output part 200c, forces the driving force output member 200 to change from the retracted state to the extended state. When the driving force output member 200 is in the extended state, the first driving force output part 200b and the driving force receiver 21 are engaged with each other, and the actuating component 40 is in the second state.

[0068] In some embodiments, when the driving force output member 200 is in a retracted state and the actuating component 40 is in a first state, as the driving force output member 200 rotates, when the driving force output member 200 changes from a retracted state to an extended state, the actuating component 40 changes from the first state to a second state.

[0069] In some other embodiments, when the driving force output member 200 is in the retracted state and the actuating component 40 is in the second state, as the driving force output member 200 rotates, the second trigger member provided in the imaging device or processing box forces the actuating component 40 to change from the second state to the first state. When the driving force output member 200 changes to the extended state, the actuating component 40 changes from the first state back to the second state.

[0070] In some embodiments, the processing box 100 is further provided with a first trigger for forcing the actuator 42 to change from a first state to a second state. When the actuator 42 is not triggered by the first trigger, the actuator 42 remains in the first state.

[0071] The first trigger and the second trigger can be the same component or two different components.

[0072] In some specific embodiments, the first trigger may be, for example, the aforementioned abutment portion 200a1, or the first trigger may be configured as a component in the processing cartridge 100 that is linked with the developing roller drive gear 5, or the first trigger may be configured as a component in the processing cartridge 100 that is linked with the photosensitive drum 2. That is, the first trigger may be configured as a component that is linked with the rotating components (e.g., the developing roller 4, the photosensitive drum 2) in the processing cartridge 100. In other embodiments, the first trigger may also be configured as a component in the imaging device that is linked with the driving force output component 200.

[0073] In summary, the first trigger can be either a component located in the processing box 100 or a component located in the imaging device.

[0074] In some embodiments, when the first trigger is configured to be linked with the rotating component, when the imaging device is not performing an imaging operation, the first trigger no longer triggers the actuating component 42. Under the holding force applied to the actuating component 42 by the holding component 43, the actuating component 42 changes from the second state to the first state. At this time, the actuating component 42 re-enters the tooth groove 200c2 of the second driving force output part 200c. That is, the actuating component 42 engages with the second driving force output part 200c again. This is equivalent to the actuating component 42 locking the driving force output component 200, which can suppress the slight rotation of the driving force output component 200 caused by the vibration of the imaging device or other reasons, and prevent the driving force output component 200 from disengaging from the driving force receiving component 21. In some embodiments, the retainer 43 is configured as an elastic member, with one end of the elastic member abutting against the main body 41 of the actuating member and the other end of the elastic member abutting against the first end cap 30. During the process of the actuating member 42 changing from the first state to the second state, the retainer 43 undergoes elastic deformation. During the process of the processing box 100 being removed from the imaging device, under the action of the elastic force (a type of retaining force) of the retainer 43, the actuating member 42 changes from the second state to the first state.

[0075] In some embodiments, the retainer 43 may also be configured as a magnetic element, and during the process of removing the processing cartridge 100 from the imaging device, the actuating element 42 changes from the second state to the first state under the action of the magnetic force (a type of retaining force) of the retainer 43.

[0076] In some embodiments, the actuating component 40 / actuator 42 is located to the right of the developing roller 4 / developing roller shaft 4a in the left-right direction.

[0077] In some implementations, such as Figure 8A and Figure 8B As shown, along the left-right direction, when the actuating component 40 / acting member 42 is in the first state, at least the actuating member 42 does not pass through the second rotation axis L2. In the first plane M, the actuating member 42 is located between the first rotation axis L1 and the second rotation axis L2. With this arrangement, the vibration impact on the developing roller 4 is smaller during the engagement of the actuating member 42 with the second driving force output part 200c2. At the same time, the space of the processing box 100 can be fully utilized, and the magnitude and direction of the force F generated between the actuating member 42 and the teeth 200c1 can be more easily controlled.

[0078] like Figure 5 and Figure 9As shown, the first end cap 30 is provided with a limiting portion 30a for preventing the actuating component 40 from falling off. A receiving groove 30a1 is formed within the limiting portion 30a for accommodating at least a portion of the actuating component 40. At least the retaining member 43 is accommodated by the receiving groove 30a1. The actuating component body 41 is mounted on the first end cap 30 for interacting with the limiting portion 30a. Specifically, along the rotation direction R2, the outer surface of the actuating component body 41 abuts / presses against the inner surface of the limiting portion 30a. Therefore, during the rotation of the driving force output member 200, or when the actuating member 42 pulls the driving force output member 200 out... During the interaction, the actuating member 42 will not rotate. The limiting part 30a also includes a limiting part 30a2 for preventing the actuating member body 41 from falling off the limiting part 30a / first end cap 30. In the vertical direction, the limiting part 30a2 is located above the receiving groove 30a1. During the transition between the first state, the second state, and the first state and the second state, the actuating member body 41 is always positioned on the first end cap 30 by the limiting part 30a and will not fall off the limiting part 30a. This facilitates the actuating member 42 to change from the second state to the first state under the action of the retaining member 43.

[0079] In some embodiments, the processing box 100 may be provided with multiple actuating elements 42, which simultaneously engage with the teeth 200c1 of the second driving force output section 200c to ensure that sufficient pulling force F is generated to pull out the driving force output member 200. Alternatively, during the rotation of the driving force output member 200, multiple actuating elements 42 sequentially engage with the teeth 200c1 of the second driving force output section 200c to ensure that the driving force output member 200 can be effectively pulled out.

[0080] In some embodiments, the position of the actuating element 42 in the left-right direction can be changed according to design requirements. For example, if the driving force output element 200 has a large movement distance in the left-right direction, the actuating element 42 can be set away from the photosensitive drum 2. Because the structure of the actuating component 40 is simple and the actuating component 40 is mounted on the first end cover 30, it is relatively easy to change the position of the actuating element 42 in the left-right direction. Such a setting can broaden the applicability of the processing box 100.

[0081] [Beneficial Effects]

[0082] Compared with the prior art, the processing box 100 provided by this utility model has the following beneficial effects:

[0083] Firstly, the processing box 100 is provided with an action component 40, and the imaging device is provided with a driving force output component 200 for outputting driving force. The action component 42 in the action component 40 can engage with the second driving force output part 200c in the driving force output component 200. During the rotation of the driving force output component 200, the action component 42 does not rotate. Specifically, the action component 42 can perform linear motion or curved motion. The direction of motion of the action component 42 is parallel to or intersects with the first plane M. When the direction of motion of the action component 42 intersects with the first plane M, preferably, the direction of motion of the action component 42 is perpendicular to the first plane M.

[0084] Setting the actuator 42 to not rotate can reduce the space required for the actuator 42 to move, thereby reducing the space occupied by the actuator 40. In addition, setting the actuator 42 to not rotate can also reduce the load on the imaging device.

[0085] Secondly, the actuating member 42 has a contacted portion 42a, and the driving force output member 200 has a contacted portion 200a. During the movement of the driving force output member 200 toward the photosensitive drum 2, the contacted portion 200a and the contacted portion 42a abut against each other / press against each other, forcing the actuating member 42 to change from the first state to the second state. When the driving force output member 200 / the first driving force output member 200b transmits driving force to the driving force receiving member 21, the actuating member 42 can be kept in the second state. The actuating component 40 / the actuating member 42 will not affect the transmission of driving force, and thus will not affect the normal use of the processing box 100.

[0086] In addition, the abutment portion 200a at this time is the first trigger member, which means that the processing box 100 does not need to be provided with a separate first trigger member, thereby reducing the number of parts in the processing box 100.

[0087] Thirdly, when the first trigger is configured to be linked with the rotating component, when the imaging device does not perform imaging action, the actuating member 42 returns from the second state to the first state. At this time, the actuating member 42 can re-enter the tooth groove 200c2, that is, the actuating member 42 engages with the second driving force output part 200c again, which is equivalent to the rotation of the driving force output part 200 being restricted. This can prevent the driving force output part 200 from disengaging from the driving force receiving part 21.

[0088] Fourthly, the functional component 40 in this utility model can be installed on the first end cover 30, and the first end cover 30 is provided with a limiting part 30a for preventing the functional component 40 from falling off, which makes the assembly process of the processing box simpler.

[0089] Fifthly, the action component 40 can be mounted on the first end cap 30, which reduces the possibility of interference between the action component 40 and other components in the processing cartridge 100, improves the structural layout of the processing cartridge 100 / developing cartridge 10, and reduces the manufacturing cost of the processing cartridge 100 / developing cartridge 10.

Claims

1. A processing cartridge, detachably mounted to an imaging device, the imaging device including a drive force output member, a main assembly, and a processing cartridge receiving space formed in the main assembly, the drive force output member including a first drive force output part and a second drive force output part coaxially arranged, the drive force output member having a retracted state and an extended state, before the processing cartridge is installed into the processing cartridge receiving space, the drive force output member is in a retracted state retracted into the main assembly, when the processing cartridge is installed into the processing cartridge receiving space and imaging is performed, the drive force output member changes from the retracted state to the extended state, and the drive force output member transmits a drive force to the processing cartridge; characterized in that The processing box includes: The drum housing includes a drum shell, a driving force receiver, and a photosensitive drum rotatably disposed in the drum shell. The photosensitive drum rotates about a first rotation axis, and the surface of the photosensitive drum is used to form an electrostatic latent image. The driving force receiver is used to engage with a first driving force output section to receive the driving force that drives the photosensitive drum to rotate. The developing cartridge, combined with the drum cartridge, includes a developing housing and a developing roller rotatably disposed in the developing housing. The developing roller rotates about a second rotation axis, which is parallel to a first rotation axis. The direction parallel to the second rotation axis is the left-right direction. The developing roller is used to carry the developer contained in the developing housing and supply the developer to the photosensitive drum to develop the electrostatic latent image. The processing box also includes a functional component for cooperating with the second driving force output section and forcing the driving force output member to change from a retracted state to an extended state; At least a portion of the actuating component has a first state and a second state with different positions. When the first driving force output part is disengaged from the driving force receiver, and the driving force output part starts to rotate from rest, the actuating component forces the driving force output part to change from a retracted state to an extended state by engaging with the second driving force output part. When the driving force output part is in the extended state, the first driving force output part and the driving force receiver are engaged with each other, and at least a portion of the actuating component is in the second state.

2. The process cartridge according to claim 1, wherein, The actuating component includes an actuating body, an actuating member protruding from the actuating body, and at least one retaining member. The actuating member is used to engage with a second driving force output portion, and the retaining member is used to force the actuating member to change to a first state.

3. The process cartridge of claim 1, wherein, During the transition between the first and second states, the actuator moves in a straight line or in a curved line.

4. The processing box according to claim 3, characterized in that, The first plane passes through the first and second rotation axes, the second plane is perpendicular to the first plane and is also parallel to the left and right directions, and the first and second planes are both perpendicular to the third plane. When the line containing the direction of motion of the actuator is parallel to the first plane and perpendicular to the left-right direction, Alternatively, when the line containing the direction of motion of the actuator lies within the first plane and is perpendicular to the left-right direction, Alternatively, the line containing the direction of motion of the actuator lies within the third plane, and the line containing the direction of motion of the actuator also intersects with the first plane; The actuator in the second state is closer to the second rotation axis than the actuator in the first state.

5. The processing box according to claim 3, characterized in that, The first plane passes through the first axis of rotation and the second axis of rotation. The second plane is perpendicular to the first plane and is also parallel to the left and right directions. When the line containing the direction of motion of the actuator is parallel to the second plane and perpendicular to the left-right direction, Alternatively, when the line containing the direction of motion of the actuator lies within the second plane and is perpendicular to the left-right direction; The actuator in the second state is further away from the first plane than the actuator in the first state.

6. The processing box according to claim 3, characterized in that, Along the left-right direction, one end of the processing box equipped with the driving force receiving element is the driving end, and the other end is the non-driving end; The first plane passes through the first axis of rotation and the second axis of rotation, the second plane is perpendicular to the first plane, and the second plane is also parallel to the left and right directions; When the line containing the direction of motion of the actuator is parallel to the first plane and also parallel to the left-right direction, Alternatively, when the line containing the direction of motion of the actuator lies within the second plane and is parallel to the left and right directions; Along the direction of movement of the actuator, the actuator in the second state is further away from the driving end or further away from the non-driving end than the actuator in the first state.

7. The processing box according to claim 3, characterized in that, The first plane passes through the first and second rotation axes. The second plane is perpendicular to the first plane and parallel to the left-right direction. Both the first and second planes are perpendicular to the third plane. During the transition between the first and second states, the straight line containing the direction of motion of the actuator is simultaneously inclined relative to the first plane, the second plane, and the third plane.

8. The processing box according to claim 1, characterized in that, When the driving force output component is in the retracted state and the actuating component is in the first state, as the driving force output component rotates, the driving force output component changes from the retracted state to the extended state, and the actuating component changes from the first state to the second state.

9. The processing box according to claim 1, characterized in that, When the driving force output component is in the retracted state and the actuating component is in the second state, as the driving force output component rotates, the actuating component first changes from the second state to the first state. As the driving force output component changes from the retracted state to the extended state, the actuating component changes from the first state back to the second state.

10. The processing box according to any one of claims 1 to 9, characterized in that, When the first driving force output unit and the driving force receiving unit are disengaged, and the driving force output unit starts to rotate from rest, the actuating unit changes from the first state to the second state under the triggering action of the first trigger unit provided in the imaging device or the first trigger unit provided in the processing box. When the first trigger is placed in the processing box, the first trigger is configured to move in conjunction with a rotating component in the processing box, the rotating component including at least a developing roller and a photosensitive drum.

Images