Developing cartridge assembly and process cartridge

Abstract

The utility model relates to a developing box assembly and a process box which are detachably installed into the imaging equipment provided with driving force output part and unlocking part, the developing box assembly includes the developing box and the fitting part which combine with each other, and the developing box includes: developing casing for containing developer, developing roller rotatably arranged in the developing casing, having the rotation axis extending along the longitudinal direction, the developing roller is used for carrying the developer and supplies the developer to the photosensitive drum outside the developing box, the developing box assembly further includes the locking part which can reciprocate between the first position and the second position, in the first position, the locking part cooperates with the locking portion arranged on the developing box or the fitting part, the developing box is locked, and the developing roller and the photosensitive drum are in the state of mutual separation, in the second position, the locking part is separated from the locking portion arranged on the developing box or the fitting part, the developing box is unlocked, and the developing roller and the photosensitive drum can be converted between the state of mutual approach and the state of mutual separation.

Description

Technical Field

[0001] This utility model relates to the field of electrophotographic imaging, and more particularly to a developing cartridge assembly that can be detachably installed in an electrophotographic imaging device, and a processing cartridge having the developing cartridge assembly. Background Technology

[0002] Generally, the processing cartridge includes a developing cartridge and a drum cartridge connected together. A developing roller is rotatably disposed in the developing cartridge. The developing roller is used to carry the developer contained in the developing cartridge and supply the developer to the photosensitive drum in the drum cartridge, so that the electrostatic latent image formed on the surface of the photosensitive drum is developed.

[0003] To prevent the developing roller and photosensitive drum from rubbing against each other, a separator pin has been installed in the processing cartridge to keep them spaced apart. Before using the processing cartridge, the user removes the separator pin and then installs the processing cartridge toward the imaging device. Although the imaging device has a guide rail for installing the processing cartridge, due to the structure of the imaging device, the guide rail must be designed to be non-linear, and the processing cartridge and the guide rail are usually loosely fitted. This means that during the installation process, the processing cartridge often collides with the imaging device, which may cause the developing roller and photosensitive drum, which are close to each other, to rub against each other. Ultimately, this results in a decrease in the image quality of the processing cartridge. Utility Model Content

[0004] In view of this, the present invention provides a developing cartridge employing the following technical solution to effectively prevent the developing roller and photosensitive drum from rubbing against each other during the installation of the processing cartridge, thereby ensuring stable imaging quality of the processing cartridge. The specific solution is as follows:

[0005] A developing cartridge assembly is detachably mounted to an imaging device equipped with a drive force output and an unlocking mechanism. The developing cartridge assembly includes a developing cartridge and a mating component that are coupled together. The developing cartridge includes: a first end; a second end, the first and second ends being disposed opposite each other along the longitudinal direction of the developing cartridge; a developing housing for containing developer; a developing roller rotatably disposed in the developing housing, having a rotation axis extending along the longitudinal direction, the developing roller carrying developer and supplying developer to a photosensitive drum outside the developing cartridge; a drive force receiving component disposed at the first end for engaging with the drive force output to receive drive force and directly or indirectly drive the developing roller to rotate; the developing cartridge assembly also includes a locking component reciprocating between a first position and a second position; in the first position, the locking component engages with a locking portion disposed on the developing cartridge or mating component, the developing cartridge is locked, and the developing roller and photosensitive drum are in a separated state; in the second position, the locking component disengages from the locking portion disposed on the developing cartridge or mating component, the developing cartridge is unlocked, and the developing roller and photosensitive drum can switch between a state of being close to each other and a state of being separated.

[0006] In some embodiments, the installation process of the developing cartridge assembly can be broken down into adjacent first and second stages. The developing cartridge assembly is in the first stage of installation before the drive force receiver begins to engage with the drive force output. When the drive force receiver begins to engage with the drive force output, the processing cartridge begins to enter the second stage of installation. The locking member is unlocked by the unlocking member in the second stage.

[0007] In some embodiments, the installation process of the developing cartridge assembly can be broken down into adjacent first and second stages. The developing cartridge assembly is in the first stage of installation before the drive force receiver begins to engage with the drive force output, and the processing cartridge begins to enter the second stage of installation when the drive force receiver begins to engage with the drive force output. The locking member is unlocked by the unlocking member during the first stage.

[0008] In some embodiments, the imaging device includes a main assembly and a door cover, the door cover being movable relative to the main assembly; with the developing cartridge assembly in a state where it is mounted to the imaging device, the second end is closer to the door cover in the longitudinal direction than the first end.

[0009] In some embodiments, the unlocking element is a protrusion provided on the door cover; the locking element is provided at the second end, and the locking element moves from a first position to a second position by interacting with the unlocking element.

[0010] In some embodiments, the main component includes a receiving cavity for accommodating a developing cartridge assembly, the unlocking element being a protrusion disposed on the inner wall of the receiving cavity; the locking element is disposed at a first end of the developing cartridge, the locking element moving from a first position to a second position by interacting with the unlocking element.

[0011] In some embodiments, the developing cartridge further includes a reset member for holding the locking member in a first position, the reset member being configured as a tension spring or cantilever.

[0012] In some embodiments, the mating member includes a locking member that is not exposed through the locking portion along the longitudinal direction.

[0013] In some implementations, the unlocking member moves the locking member from a first position to a second position through a magnetic force generated between the unlocking member and the locking member.

[0014] The processing box provided by this utility model includes a drum box and the developing box assembly as described above, wherein the photosensitive drum is rotatably disposed in the drum box.

[0015] The locking component in this invention is disposed in the developing cartridge in a manner that reciprocates between a first position and a second position relative to the developing housing. This eliminates the need for the user to remove the isolation pin before using the processing cartridge. As a result, the developing cartridge / processing cartridge remains locked when installed in front of the imaging device, preventing the developing roller and photosensitive drum from rubbing against each other during installation. Consequently, the imaging quality of the processing cartridge can be maintained stably. Attached Figure Description

[0016] Figure 1 This is a perspective view of the processing box involved in Embodiment 1 of this utility model.

[0017] Figure 2 This is a diagram showing the state of the processing box according to Embodiment 1 of this utility model after it has been installed in the imaging device.

[0018] Figure 3A and Figure 3B This is a schematic diagram of the installation process of the processing box involved in Embodiment 2 of this utility model.

[0019] Figure 3C This is a diagram showing the state of the processing box according to Embodiment 2 of this utility model after it has been installed in a predetermined position on the imaging device.

[0020] Figure 4A and Figure 4B This is a schematic diagram of the installation process of the processing box involved in Embodiment 3 of this utility model.

[0021] Figure 4C This is a state diagram of the processing box according to Embodiment 3 of this utility model after it has been installed in a predetermined position on the imaging device.

[0022] Figure 5A and Figure 5B This is a schematic diagram of the installation process of the processing box involved in Embodiment 4 of this utility model.

[0023] Figure 5C This is a state diagram of the processing box according to Embodiment 4 of this utility model after it has been installed in a predetermined position on the imaging device. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0025] [Overall structure of the processing box]

[0026] like Figure 1 and Figure 2As shown, the processing cartridge 100 can be detachably installed into an imaging device, which includes a main assembly and a cover 200. The cover 200 is movable relative to the main assembly. The main assembly has a receiving cavity for accommodating the processing cartridge 100. After the processing cartridge 100 is installed into the main assembly, the user closes the cover 200, and the receiving cavity is covered by the cover 200. The processing cartridge 100 can then be developed in the imaging device.

[0027] The processing cartridge 100 includes a developer cartridge 10 and a drum cartridge 20 connected to each other. The developer cartridge 10 includes a developer housing 11 and a developer roller 15 rotatably disposed in the developer housing 11. The drum cartridge 20 includes a drum housing 21 and a photosensitive drum 22 rotatably disposed in the drum housing 21. The developer housing 11 is used to contain developer, and the developer roller 15 is used to carry developer and supply developer to the photosensitive drum 22.

[0028] Furthermore, the developing cartridge 10 also includes a separation force receiver 13, and the imaging device is also provided with a force-applying member 300 for cooperating with the separation force receiver 13. When the processing cartridge 100 is installed in the main assembly, when the processing cartridge 100 does not need to continue developing, the force-applying member 300 applies a separation force to the separation force receiver 13, thereby forcing the developing roller 15 and the photosensitive drum 22 from a state of being close to each other to a state of being separated from each other, so as to avoid the developing roller 15 and the photosensitive drum 22 being close to each other for a long time, causing damage to at least one of them. When the processing cartridge 100 needs to be developed again, a restoring force can be applied to the separation force receiver 13 by the force-applying member 300, or the elastic force can be released by the elastic member provided in the processing cartridge 100, thereby forcing the developing roller 15 and the photosensitive drum 22 from a state of being separated from each other to a state of being close to each other.

[0029] During the installation of the processing cartridge 100 toward the main component, or during the removal of the processing cartridge 100 from the main component, to prevent the developing roller 15 and the photosensitive drum 22 from rubbing against each other, the processing cartridge 100 also includes a locking mechanism 30. Before the processing cartridge 100 is installed into the imaging device, the locking mechanism 30 locks the developing cartridge 100, so that the developing roller 15 and the photosensitive drum 22 remain in a state of separation from each other. As the processing cartridge 100 is installed toward the imaging device, or after the processing cartridge 100 is installed into the imaging device, the locking mechanism 30 is unlocked by an unlocking component other than the processing cartridge 100, thereby changing the developing roller 15 and the photosensitive drum 22 from a state of separation from each other to a state of proximity to each other.

[0030] For clarity of the following description, the direction of rotation of the developing roller 15 is defined as the longitudinal direction, and the direction of rotation of the photosensitive drum 22 is also extended in the longitudinal direction. In the longitudinal direction, the processing cartridge 100 has a first end C1 and a second end C2 opposite to each other. The processing cartridge 100 is installed toward the main assembly in the direction from the second end C2 to the first end C1, and is removed from the main assembly in the direction from the first end C1 to the second end C2. When the processing cartridge 100 is installed in the imaging device, in the longitudinal direction, the second end C2 is closer to the door cover 200 than the first end C1.

[0031] Furthermore, the processing box 100 also includes a driving force receiver, which is used to combine with the driving force output in the imaging device to receive driving force and directly or indirectly drive the developing roller 15 to rotate. In the longitudinal direction, the driving force receiver is located at the first end C1. Specifically, the driving force receiver can be disposed in at least one of the developing box 10 and the drum box 20, as long as the driving force receiver can combine with the driving force output to receive driving force.

[0032] [Lockdown Agency]

[0033] (Example 1)

[0034] Continue as Figure 1 and Figure 2 As shown, the locking mechanism 30 is provided at the second end C2. The developing cartridge 10 can switch between a locked state and an unlocked state. When the developing cartridge 10 is in the locked state, the developing roller 15 and the photosensitive drum 22 are in a state of separation from each other. When the developing cartridge 10 is in the unlocked state, the developing roller 15 and the photosensitive drum 22 can switch between a state of separation from each other and a state of proximity to each other.

[0035] Specifically, the processing cartridge 100 also includes a mating component 40 that engages with the developing cartridge 10. The developing cartridge 10 is locked in a locked state by the locking mechanism 30 engaging with the mating component 40. At this time, the developing cartridge 10 cannot move relative to the mating component 40. In this embodiment, the locking mechanism 30 is located at the second end C2, and the unlocking component 400 is located on the door cover 200. As the door cover 200 is closed, the unlocking component 400 interacts with the locking mechanism 30, thereby causing the locking mechanism 30 and the mating component 40 to no longer engage with each other. The developing cartridge 10 is unlocked and is in an unlocked state. At this time, the developing cartridge 10 can move relative to the mating component 40.

[0036] The locking mechanism 30 includes a locking member 31 and a resetting member 33. The locking member 31 is disposed in the developing cartridge 10 in such a way that it can reciprocate between a first position and a second position relative to the developing housing 11 / fitting member 40. When the locking member 31 is in the first position, the developing cartridge 10 is in a locked state. When the locking member 31 is in the second position, the developing cartridge 10 is in an unlocked state. The resetting member 33 is used to force the locking member 31 to move toward the first position, or in other words, the resetting member 33 is used to keep the locking member 31 in the first position.

[0037] In some embodiments, the reset member 33 is configured as an elastic member, specifically, the reset member 33 is configured as a compression spring, such as... Figure 1 As shown, the mating component 40 is provided with at least one mating plate 41, which has a mating part 44 for engaging with the locking component 31. When the locking component 31 is in the first position, it engages with the mating part 44, locking the developing cartridge 10 and separating the developing roller 15 and the photosensitive drum 22. When the processing cartridge 100 is installed in the predetermined position of the main component, as the door cover 200 closes, the unlocking component 400 gradually abuts against the locking component 31, causing the locking component 31 to move from the first position to the second position. The resetting component 33 undergoes elastic deformation and accumulates elastic force. When the locking component 31 reaches the second position, it disengages from the mating part 44, unlocking the developing cartridge 10. The developing cartridge 10 moves relative to the drum 20 when the force-applying member 300 applies a restoring force to the separation force receiving member 13, and the locking member 31 and the mating part 44 are misaligned along the direction intersecting the longitudinal direction. The state in which the developing roller 15 and the photosensitive drum 22 are separated changes to a state in which they are close to each other, and the processing cartridge 100 can perform development. When the processing cartridge 100 no longer needs to continue developing, the force-applying member 300 can also apply a separation force to the separation force receiving member 13, and the developing cartridge 10 moves relative to the drum 20 again. The developing roller 15 and the photosensitive drum 22 change from a state in which they are close to each other to a state in which they are separated. It can be seen that when the developing cartridge 10 is in the unlocked state, the developing roller 15 and the photosensitive drum 22 can switch between a state in which they are close to each other and a state in which they are separated.

[0038] When the processing cartridge 100 needs to be removed, the reset member 33 releases its elastic force, and the locking member 31 engages with the mating part 44 again. The developing cartridge 10 changes from the unlocked state to the locked state. At this time, the developing cartridge 10 cannot move relative to the mating part 40, and the developing roller 15 and the photosensitive drum 22 are kept in a state of separation from each other. Even if the processing cartridge 100 collides with the main component, there is no need to worry about the developing roller 15 and the photosensitive drum 22 rubbing against each other.

[0039] In some embodiments, the mating part 44 is a through hole provided on the mating plate 41. When the locking member 31 is in the first position, the locking member 31 enters the through hole and is exposed through the through hole in the longitudinal direction. When the locking member 31 is in the second position, the locking member 31 disengages from the through hole.

[0040] In some embodiments, the mating part 44 can also be a blind hole provided on the mating plate 41. In this case, the opening on the side of the mating part 44 away from the locking member 31 is closed by the sealing member. When the locking member 31 is in the first position, the locking member 31 still enters the mating part 44, but in the longitudinal direction, the locking member 31 is not exposed through the mating part 44. The unlocking member 400 abuts against the sealing member, and the sealing member pushes the locking member 31, so that the locking member 31 disengages from the mating part 44 and reaches the second position. Before the processing cartridge 100 is installed in the predetermined position of the imaging device, in the longitudinal direction, the locking member 31 is not exposed through the mating part 44. In other words, the locking member 31 does not protrude from the mating part 40. This can avoid interference between the processing cartridge 100 and the imaging device, and thus avoid the developing roller and the photosensitive drum from rubbing against each other and being damaged, affecting the printing quality.

[0041] In some embodiments, the locking mechanism 30 further includes an abutment portion 32 connected to the locking member 31, and the developing cartridge 10 further includes a support plate 14 connected to the developing housing 11. The support plate 14 is provided with a support portion 12 for supporting the locking member 31. The locking member 31 is supported by cooperating with the support portion 12. One end of the reset member 33 abuts against the abutment portion 32, and the other end abuts against the support plate 14. The support portion 12 may be configured as a through hole, and the locking member 31 is exposed from the support portion 12 in the longitudinal direction.

[0042] In some embodiments, the support portion 12 may be configured as a blind hole, in which the locking member 31 is not exposed in the longitudinal direction, and similarly, the locking member 31 does not protrude from the support portion 12. For example, in the longitudinal direction, the dimension by which the support portion 12 extends in the support plate 14 is greater than the dimension by which the locking member 31 enters the support portion 12 and the sum of the displacement required for the locking member 31 to move from the first position to the second position.

[0043] In some embodiments, the locking member 31 is configured to move in the longitudinal direction. Alternatively, the locking member 31 can also be configured to move in a direction intersecting the longitudinal direction, as long as the locking member 31 can reciprocate between the first position and the second position.

[0044] (Example 2)

[0045] like Figure 3A , Figure 3B and Figure 3CAs shown, unlike Embodiment 1, the reset member 33 in this embodiment is a cantilever. Similarly, the free end of the reset member 33 abuts against the abutment portion 32, and the reset member 33 is used to force the locking member 31 to move toward the first position, or in other words, the reset member 33 is used to keep the locking member 31 in the first position.

[0046] Another difference between this embodiment and Embodiment 1 is that the locking mechanism 30 in this embodiment is disposed at the first end C1, and correspondingly, the unlocking member 400 in this embodiment is a protrusion formed on the inner wall of the receiving cavity.

[0047] As the processing cartridge 100 is installed longitudinally toward the main component / receiving cavity, the driving force receiver gradually begins to engage with the driving force output in the imaging device. Through the mutual cooperation of the unlocking member 400 and the locking member 31, the locking member 31 disengages from the mating part 44, the locking member 31 is unlocked, the developing cartridge 10 changes from the locked state to the unlocked state, the resetting member 33 undergoes elastic deformation and accumulates elastic force. At this time, the developing cartridge 10 can move relative to the mating part 40, and the developing roller 15 and the photosensitive drum 22 can switch between a state of being close to each other and a state of being separated from each other.

[0048] When the processing cartridge 100 needs to be removed, the reset member 33 releases its elastic force, and the locking member 31 engages with the mating part 44 again. The developing cartridge 10 changes from the unlocked state to the locked state. At this time, the developing cartridge 10 cannot move relative to the mating part 44, and the developing roller 15 and the photosensitive drum 22 are kept in a state of separation from each other.

[0049] (Example 3)

[0050] like Figure 4A , Figure 4B and Figure 4C As shown, in this embodiment, the locking member 31 is movably disposed on the mating member 40 relative to the developing housing 11 / matting member 40, and the locking member 31 can still reciprocate between the first position and the second position. In the first position, the locking member 31 cooperates with the support part 12, and the developing cartridge 10 is in a locked state. In the second position, the locking member 31 disengages from the support part 12, and the developing cartridge 10 is in an unlocked state. The reset member 33 is used to keep the locking member 31 in the first position.

[0051] Specifically, in this embodiment, at least a portion of the locking member 31 is configured as a magnetic member, and the unlocking member 400 is a magnetic member or a metal member disposed in the main component. Before the processing cartridge 100 is installed into the main component, the locking member 31 is located in the first position. As the processing cartridge 100 is installed toward the main component, a magnetic attraction gradually develops between the locking member 31 and the unlocking member 400. When the magnetic attraction between the locking member 31 and the unlocking member 400 is sufficient to overcome the reset force of the reset member 33, the locking member 31 is attracted by the unlocking member 400 in a direction away from the second end C2. The reset member 33 accumulates the reset force. Finally, the locking member 31 disengages from the support portion 12 and reaches the second position, and the developing cartridge 10 is unlocked.

[0052] When the processing cartridge 100 needs to be removed from the imaging device, the reset member 33 releases the reset force, and the locking member 31 engages with the support part 12 again to reach the first position again, and the developing cartridge 10 is locked again.

[0053] In some embodiments, the mating member 40 is provided with a plurality of mutually spaced mating plates, such as Figure 4A As shown, the first mating plate 41, the second mating plate 42, and the third mating plate 43 are arranged sequentially at intervals along the longitudinal direction. The first mating plate 41 is provided with a mating part 44. The locking member 31 is supported by the second mating plate 42 and the third mating plate 43. The reset member 33 is set as an elastic member. When the locking member 31 is in the first position, the locking member 31 does not cooperate with the mating part 44. When the locking member 31 is in the second position, the locking member 31 cooperates with the mating part 44.

[0054] In some embodiments, the locking member 31 and the unlocking member 400 can also move the locking member 31 from the first position to the second position by generating a repulsive force between them. In this variation, the locking member 31 is movably disposed in the mating member 40.

[0055] (Example 4)

[0056] Unlike Embodiment 2, in this embodiment, the reset member 33 is configured as an elastic member, and the elastic member is a tension spring, such as... Figure 5A , Figure 5B and Figure 5C As shown, one end of the reset member 33 is connected to the mating plate 41, and the other end is connected to the abutment member 32. The movement mode of the locking member 31 can be any of the above embodiments. However, since one end of the reset member 33 is connected to the mating plate 41, when the locking member 31 is in the second position, when the locking member 31 moves with the developing cartridge 10 relative to the drum housing 21, the reset member 33 will always generate a reset force that forces the developing cartridge 10 to return to the locked state. Thus, when the processing cartridge 100 needs to be removed, the developing cartridge 10 can return to the locked state more quickly.

[0057] [Other Notes]

[0058] Based on the inventive concept of this utility model, the locking member 31 can be disposed in the developing cartridge 10 or in the mating member 40. However, regardless of where the locking member 31 is disposed, it is always disposed in a manner that allows it to reciprocate between a first position and a second position relative to the developing housing 11 / matting member 40.

[0059] When the locking member 31 is disposed in the developing cartridge 10, the mating part 44 for cooperating with the locking member 31 is one embodiment of the locking part for locking the locking member 31. When the locking member 31 is disposed in the mating part 40, the supporting part 12 for cooperating with the locking member 31 is another embodiment of the locking part for locking the locking member 31. That is, the locking member 31 is disposed in the developing cartridge 10 or the mating part 40, and the locking part is disposed in the mating part 40 or the developing cartridge 10.

[0060] Furthermore, the technical solution of this utility model is not only applicable to the processing box 100 including the developing box 10 and the drum box 20, but also applicable to the developing box assembly without the drum box 20. The developing box assembly includes the developing box 10 and the mating part 40, and the developing box assembly can also be detachably installed to the imaging device and has the first end C1 and the second end C2.

[0061] Depending on whether the drive force receiver begins to engage with the drive force output, the installation process of the processing box 100 can be divided into an adjacent first stage and a second stage. Before the drive force receiver begins to engage with the drive force output, the processing box 100 is in the first stage of installation. When the drive force receiver begins to engage with the drive force output, the processing box 100 begins to enter the second stage of installation.

[0062] In some implementations, at least a portion of the interaction between the unlocking member 400 and the locking member 31 occurs in the first stage, such as in Embodiments 2, 3 and 4 above.

[0063] In some embodiments, the moment when the locking member 31 is unlocked by the unlocking member 400 (i.e., the moment when the locking member 31 disengages from the locking part) is in the first stage, such as in Embodiments 2, 3 and 4 above.

[0064] In some embodiments, at least a portion of the interaction between the unlocking member 400 and the locking member 31 can also occur after the processing box 100 is installed in the predetermined position of the imaging device, such as in Embodiment 1 above.

[0065] In some embodiments, the moment when the locking member 31 is unlocked by the unlocking member 400 (i.e., the moment when the locking member 31 disengages from the locking part) may also occur after the processing box 100 is installed in the predetermined position of the imaging device, such as in the first embodiment described above.

[0066] As described above, at least part of the interaction between the locking member 31 and the unlocking member 400 in this invention occurs in the second stage, or after the processing cartridge 100 is installed in the predetermined position of the imaging device. Thus, even if the processing cartridge 100 collides with the imaging device during installation, the developing cartridge 10 remains locked, and the developing roller 15 and the photosensitive drum 22 will not rub against each other. Therefore, the imaging quality of the processing cartridge 100 can be stably maintained.

Claims

1. A developer cartridge assembly, detachably mounted to an imaging device equipped with a drive force output and an unlocking mechanism, the developer cartridge assembly comprising a developer cartridge and a mating component joined together, the developer cartridge comprising: First end; The second end, the first end and the second end are arranged opposite each other along the longitudinal direction of the developing cartridge; The developer housing is used to contain the developer. The developing roller, rotatably disposed in the developing housing, has a rotation axis extending in the longitudinal direction, the developing roller being used to carry the developer and supply the developer to the photosensitive drum outside the developing cartridge; A driving force receiving element is disposed at the first end for connecting with the driving force output element to receive driving force and directly or indirectly drive the developing roller to rotate. Its features are, The developing cartridge assembly also includes a locking element that can reciprocate between a first position and a second position; In the first position, the locking element engages with the locking part provided on the developing cartridge or mating part, the developing cartridge is locked, and the developing roller and the photosensitive drum are in a state of separation from each other; In the second position, the locking member disengages from the locking part provided on the developing cartridge or mating part, the developing cartridge is unlocked, and the developing roller and photosensitive drum can switch between a state of being close to each other and a state of being separated from each other.

2. The developing cartridge assembly according to claim 1, characterized in that, The installation process of the developing cartridge assembly can be broken down into two adjacent stages: a first stage and a second stage. Before the drive force receiver begins to engage with the drive force output, the developing cartridge assembly is in the first stage of installation. When the drive force receiver begins to engage with the drive force output, the processing cartridge begins to enter the second stage of installation. The moment when the locking element is unlocked by the unlocking element occurs in the second stage.

3. The developing cartridge assembly according to claim 1, characterized in that, The installation process of the developing cartridge assembly can be broken down into two adjacent stages: a first stage and a second stage. Before the drive force receiver begins to engage with the drive force output, the developing cartridge assembly is in the first stage of installation. When the drive force receiver begins to engage with the drive force output, the processing cartridge begins to enter the second stage of installation. The moment when the locking element is unlocked by the unlocking element is in the first stage.

4. The developing cartridge assembly according to claim 1, characterized in that, The imaging device includes a main component and a door cover, the door cover being movable relative to the main component; With the developing cartridge assembly installed in the imaging device, the second end is closer to the door cover than the first end in the longitudinal direction.

5. The developing cartridge assembly according to claim 4, characterized in that, The unlocking element is a protrusion installed on the door cover; The locking element is disposed at the second end, and the locking element moves from the first position to the second position by interacting with the unlocking element.

6. The developing cartridge assembly according to claim 4, characterized in that, The main component includes a receiving cavity for accommodating the developing cartridge assembly, and the unlocking element is a protrusion disposed on the inner wall of the receiving cavity; The locking element is disposed at the first end of the developing cartridge, and the locking element moves from the first position to the second position by interacting with the unlocking element.

7. The developing cartridge assembly according to claim 1, characterized in that, The developing cartridge also includes a reset member for holding the locking member in a first position, the reset member being configured as a tension spring or cantilever.

8. The developing cartridge assembly according to claim 1, characterized in that, The mating component includes components along the longitudinal direction, and the locking component is not exposed through the locking portion.

9. The developing cartridge assembly according to claim 1, characterized in that, The unlocking component, through the magnetic force generated between itself and the locking component, causes the locking component to move from the first position to the second position.

10. A processing box, characterized in that, The processing box includes a drum box and a developing box assembly as described in any one of claims 1-9, wherein the photosensitive drum is rotatably disposed in the drum box.

Images