A process cartridge

Abstract

The embodiment of the present application provides a processing box, and the photosensitive unit of the processing box comprises a second shell, a photosensitive drum, a power connection assembly and a first power receiving piece. The photosensitive drum and the first power receiving piece are rotatably arranged on the second shell, and the power connection assembly is arranged at one end of the photosensitive drum. The power connection assembly has an engagement state and a disengagement state. When the power connection assembly is in the engagement state, the first power receiving piece is drivingly connected with the photosensitive drum. When the power connection assembly is in the disengagement state, the first power receiving piece is disconnected from the driving connection with the photosensitive drum. Under the action of the force of the force applying piece, at least a partial area of the power connection assembly is movable relative to the photosensitive drum, so that the power connection assembly is switched between the engagement state and the disengagement state. The processing box of the embodiment of the present application can reduce the abrasion of the photosensitive drum.

Description

Technical Field

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

[0002] In related technologies, when a color laser printer prints black characters or patterns, the photosensitive drum in the color processing cartridge, which is not involved in development, also rotates synchronously. This accelerates the wear of the photosensitive drum, thereby reducing the lifespan of the processing cartridge. Utility Model Content

[0003] In view of this, the main objective of the embodiments of this application is to provide a processing cartridge that can reduce wear on the photosensitive drum. To achieve the above objective, the technical solution of the embodiments of this application is implemented as follows:

[0004] This application provides a processing box for use with an imaging device equipped with a force-applying component. The processing box includes a developing unit, a photosensitive unit, and an operable separation component.

[0005] The developing unit includes a first housing and a developing roller, the developing roller being rotatably mounted on the first housing;

[0006] The photosensitive unit includes a second housing, a photosensitive drum, a power connection assembly, and a first power receiver. The photosensitive drum and the first power receiver are rotatably mounted on the second housing, and the power connection assembly is located at one end of the photosensitive drum.

[0007] The separating element is used to cooperate with the force-applying element to drive the power connection assembly to move;

[0008] The power connection assembly has an engaged state and a disengaged state. When the power connection assembly is in the engaged state, the first power receiver is driven to connect with the photosensitive drum. When the power connection assembly is in the disengaged state, the first power receiver is disengaged from the photosensitive drum. Under the action of the force applied by the force-applying member, at least a portion of the power connection assembly moves relative to the photosensitive drum, so that the power connection assembly switches between the engaged state and the disengaged state.

[0009] In one embodiment, the power connection assembly includes a first connection structure and a second connection structure. The first connection structure is disposed on the photosensitive drum, and the second connection structure is disposed on the first power receiving member. The first connection structure includes a movable member. Under the action of the force applied by the force member, the movable member can move relative to the photosensitive drum along at least one of the radial and axial directions, switching between contacting and separating from the second connection structure, so that the power connection assembly switches between the engaged state and the disengaged state.

[0010] In one embodiment, the first connecting structure includes a first movable member and a pushing structure located between the photosensitive drum and the first power receiving member. Along the axial direction of the photosensitive drum, the first movable member is slidably disposed at one end of the photosensitive drum. The first movable member has a first engagement portion on the side near the second connecting structure, and the second connecting structure has a second engagement portion on the side near the first movable member.

[0011] The push structure is movably mounted on the second housing, and the separating member is used to drive the push structure to move under the force of the force-applying member; under the force of the force-applying member, the push structure pushes the first movable member along the axial direction of the photosensitive drum, so that the first joint can switch between being connected to and separated from the second joint, and the power connection assembly can switch between the engaged state and the disengaged state.

[0012] In one embodiment, the photosensitive unit includes a first base disposed at one end of the photosensitive drum, and the pushing structure includes a first elastic member, a first pushing member, and a second pushing member; the opposite ends of the first elastic member are respectively connected to the first base and the first movable member, the first pushing member is rotatably disposed on the second housing and located on the side of the first movable member away from the photosensitive drum, and the separating member is used to drive the first pushing member to move under the force of the applying member; the second pushing member is slidably disposed between the first movable member and the first pushing member;

[0013] The second pusher has a first inclined surface on the side near the first pusher, and the first pusher has a second inclined surface on the side near the second pusher. The second inclined surface slidably abuts against the first inclined surface. Under the action of the force applied by the force-applying member, the first inclined surface slides relative to the second inclined surface, so that the second pusher pushes the first movable member along the axial direction of the photosensitive drum.

[0014] In one embodiment, the developing unit further includes a first transmission structure movably disposed on the first housing, the first transmission structure having an abutment groove, a portion of the separating member protruding to form an abutment post, the abutment post being slidably disposed in the abutment groove, and a portion of the pushing structure being disposed on the first transmission structure.

[0015] In one embodiment, the developing unit further includes a retaining structure movably disposed on the first housing, a portion of the pushing structure being disposed on the retaining structure, and a separating member for driving the retaining structure to move under the force of the applying member. The retaining structure has a first retaining state that puts the power connection assembly in the engaged state and a second retaining state that puts the power connection assembly in the disengaged state. Under the force of the applying member, the retaining structure can switch between the first retaining state and the second retaining state by moving.

[0016] In one embodiment, the retaining structure includes a second elastic member and a second transmission structure. A portion of the pushing structure is disposed on the second transmission structure. The opposite ends of the second elastic member are respectively connected to the first housing and the second transmission structure. The second transmission structure has an abutting arm that can be detachably abutted against the first housing. The separating member has an unlocking part that can be detachably abutted against the abutting arm.

[0017] When the retaining structure is in the second retaining state, the abutting arm abuts against the first housing, and the second elastic member is in a stretched state; under the action of the force applied by the force member, the unlocking part moves to abut against the abutting arm, and the abutting arm separates from the first housing, and the second transmission structure drives the pushing structure to move under the elastic action of the second elastic member, and the retaining structure switches to the first retaining state.

[0018] In one embodiment, the first connecting structure includes a second base and a second movable member. The second base is disposed at one end of the photosensitive drum and has a receiving cavity. One end of the receiving cavity is open to form an extension port. A portion of the cavity wall of the receiving cavity is open to form an installation port. The second movable member is movably disposed at the installation port. A portion of the second connecting structure extends into the receiving cavity through the extension port. The separating member is used to cooperate with the force-applying member to drive the second movable member to move.

[0019] Under the action of the force applied by the force-applying member, a portion of the second movable member moves radially along the second base to switch between contacting and separating from the second connecting structure.

[0020] In one embodiment, the power connection assembly further includes a transmission member, which is sleeved on the second base and movably abuts against the second movable member. Under the action of the force applied by the force-applying member, the separating member drives the transmission member to slide along the axial direction of the second base, so that the second movable member moves radially along the second base.

[0021] The separating member has a third inclined surface, and the transmission member has a fourth inclined surface that fits against the third inclined surface. Under the action of the force applied by the force-applying member, the separating member moves to make the third inclined surface slide relative to the fourth inclined surface, so as to push the transmission member along the axial direction of the second base.

[0022] This application provides a processing cartridge. The photosensitive unit of the processing cartridge includes a second housing, a photosensitive drum, a power connection assembly, and a first power receiver. The power connection assembly has an engaged state and a disengaged state. When the power connection assembly is in the engaged state, the first power receiver is driven to connect with the photosensitive drum. When the power connection assembly is in the disengaged state, the first power receiver is disconnected from the photosensitive drum. Under the action of a force-applying component, at least a portion of the power connection assembly moves relative to the photosensitive drum, thereby switching the power connection assembly between the engaged and disengaged states. In other words, through the action of the force-applying component of the imaging device, the power connection assembly can switch between the engaged and disengaged states, thereby enabling the photosensitive drum and the first power receiver to switch between driving connection and disconnection. Therefore, when the photosensitive unit needs to participate in the development process, under the action of the force-applying component, the power connection assembly can be moved to the engaged state, allowing the first power receiver to drive the photosensitive drum to rotate, thus achieving better development. Furthermore, when the photosensitive unit is not required to participate in the development process, the power connection assembly can be disengaged under the force of the force-applying component. This prevents the first power receiver from driving the photosensitive drum to rotate, and the photosensitive unit will not participate in the development process. This reduces wear on the photosensitive drum and extends the lifespan of the processing cartridge. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a processing box according to an embodiment of this application;

[0024] Figure 2 for Figure 1 Exploded view of the processing box;

[0025] Figure 3 for Figure 2 A schematic diagram showing the structure of the photosensitive unit, the interaction between the separating components and the force-applying components;

[0026] Figure 4 for Figure 2 A schematic diagram showing the structure of the photosensitive unit, the interaction between the separating components and the force-applying components;

[0027] Figure 5 for Figure 2 Schematic diagram of the structure of the second base;

[0028] Figure 6 for Figure 2 Schematic diagram of the transmission component;

[0029] Figure 7 for Figure 2 Schematic diagram of the middle separator;

[0030] Figure 8 This is a schematic diagram showing the cooperation relationship between a portion of the processing box structure and the force-applying component according to another embodiment of this application;

[0031] Figure 9 for Figure 8 An exploded view of part of the structure of the processing box;

[0032] Figure 10 for Figure 9 Schematic diagram of the cooperation relationship between the middle jacking structure and the first moving part;

[0033] Figure 11 for Figure 10 A sectional view along the axial direction, showing the first movable part connected to the second connecting structure;

[0034] Figure 12 for Figure 9 A schematic diagram of another possible fit between the central jacking structure and the first moving part;

[0035] Figure 13 for Figure 12 A sectional view along the axial direction, showing the first movable part separated from the second connecting structure;

[0036] Figure 14 for Figure 9 A schematic diagram of the structure of the first moving part;

[0037] Figure 15 for Figure 9 Schematic diagram of the structure of the second jacking component;

[0038] Figure 16 for Figure 9 Schematic diagram of the structure of the first jacking component;

[0039] Figure 17 for Figure 9 A schematic diagram showing the cooperation relationship between the first power receiving component and the second connecting structure.

[0040] Figure 18 This is an exploded view of a processing box according to another embodiment of this application;

[0041] Figure 19 for Figure 18 A partial structural diagram of the processing box;

[0042] Figure 20 for Figure 18A partial structural diagram of the central processing box, showing the power connection component in the engaged state;

[0043] Figure 21 for Figure 18 A partial structural diagram of the central processing box, showing the power connection component in a disengaged state;

[0044] Figure 22 for Figure 18 A partial structural diagram of the processing box, showing the power connection assembly in a disengaged state.

[0045] Explanation of reference numerals in the attached figures

[0046] 10. Photosensitive unit; 11. Second housing; 12. Photosensitive drum; 13. Power connection assembly; 131. First movable member; 1311. First joint; 132. Pushing structure; 1321. First elastic member; 1322. First pushing member; 1322a. Second inclined surface; 1323. Second pushing member; 1323a. First inclined surface; 133. Second base; 133a. Receiving cavity; 133b. Extension port; 133c. Mounting port; 134. Second movable member; 135. Transmission member; 135a. Fourth inclined surface; 136. First 137. Connecting structure; 1371. Second connecting structure; 14. First power receiving component; 15. First base; 20. Force applying component; 30. Developing unit; 31. First housing; 32. Developing roller; 33. Separating component; 33a. Third inclined surface; 331. Unlocking part; 34. First transmission structure; 341. First slider; 342. First connecting component; 35. Holding structure; 351. Second elastic component; 352. Second transmission structure; 3521. Abutting arm; 3522. Second slider; 3523. Second connecting component. Detailed Implementation

[0047] In this application, the "axial" orientation or positional relationship is based on the appendix. Figure 3 The orientation or positional relationship shown. It should be understood that these orientational terms are for the convenience of describing this application and simplifying the description only, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation.

[0048] One embodiment of this application provides a processing box, see [link to embodiment]. Figure 1 The processing box is used in conjunction with an imaging device equipped with a force-applying element 20. The processing box includes a photosensitive unit 10, a developing unit 30, and an operable separation element 33.

[0049] See Figure 2 and Figure 8 The developing unit 30 includes a first housing 31 and a developing roller 32, which is rotatably mounted on the first housing 31.

[0050] See Figure 2 The photosensitive unit 10 includes a second housing 11, a photosensitive drum 12, a power connection assembly 13, and a first power receiver 14. The photosensitive drum 12 and the first power receiver 14 are rotatably mounted on the second housing 11, and the power connection assembly 13 is mounted on one end of the photosensitive drum 12.

[0051] The separator 33 is used to cooperate with the force-applying member 20 to drive the power connection assembly 13 to move. It should be noted that the separator 33 is operably disposed on the processing box, and its specific location is not limited. For example, the separator 33 may be operably disposed on the first housing 31. Alternatively, the separator 33 may be operably disposed on the end cap of the processing box.

[0052] See Figure 4 , Figure 5 , Figure 11 and Figure 13 The power connection assembly 13 has an engaged state and a disengaged state. When the power connection assembly 13 is in the engaged state, the first power receiver 14 is driven to connect with the photosensitive drum 12. When the power connection assembly 13 is in the disengaged state, the first power receiver 14 is disconnected from the photosensitive drum 12. Under the action of the force of the force-applying member 20, at least a portion of the power connection assembly 13 moves relative to the photosensitive drum 12, so that the power connection assembly 13 switches between the engaged state and the disengaged state.

[0053] Specifically, the processing box is used in conjunction with an imaging device, which can be any type of imaging device such as a printer, copier, or fax machine.

[0054] The first housing 31 is the housing structure of the developing unit 30, and the developing roller 32 is capable of rotating around its axis to perform the developing operation. The second housing 11 is the housing structure of the photosensitive unit 10, and the photosensitive drum 12 is capable of rotating around its axis to perform the developing operation.

[0055] The first power receiver 14 is a structure on the photosensitive unit 10 used to receive external driving force. Depending on the actual situation, the first power receiver 14 can be used to receive driving force from the imaging device or to receive driving force from the developing unit 30.

[0056] A power connection assembly 13 is provided between the photosensitive drum 12 and the first power receiver 14. The power connection assembly 13 can connect and disconnect the photosensitive drum 12 and the first power receiver 14 through the engagement and disengagement of its internal structure.

[0057] The separating member 33 is used to cooperate with the force-applying member 20 to drive the power connection assembly 13 to move, thereby engaging or disengaging the power connection assembly 13. In fact, the force-applying member 20 can move to abut against the separating member 33, and the separating member 33 can transmit the force from the force-applying member 20 to the power connection assembly 13, so that the power connection assembly 13 can switch between an engaged state and a disengaged state through movement.

[0058] The engagement state of the power connection assembly 13 refers to the state in which the power connection assembly 13 is combined through its internal structure to drive the first power receiver 14 and the photosensitive drum 12. In the engagement state, when the first power receiver 14 receives an external driving force, the first power receiver 14 can drive the photosensitive drum 12 to rotate, enabling the photosensitive drum 12 to perform the developing operation.

[0059] The disengaged state of the power connection assembly 13 refers to the state in which the power connection assembly 13 is disengaged through its internal structure, thereby breaking the drive connection between the first power receiver 14 and the photosensitive drum 12. In the disengaged state, even if the first power receiver 14 receives external driving force, it will not drive the photosensitive drum 12 to rotate. Therefore, when development is not required, the photosensitive drum 12 will not rotate, thus reducing wear on the photosensitive drum 12.

[0060] It should be noted that the engagement and disengagement states of the power connection assembly 13 are switched by the movement of at least a portion of the power connection assembly 13 relative to the photosensitive drum 12. This can be either a portion of the power connection assembly 13 moving relative to the photosensitive drum 12 or the entire portion moving relative to the photosensitive drum 12.

[0061] Furthermore, the movement of at least a portion of the power connection assembly 13 relative to the photosensitive drum 12 is achieved through cooperation with the force application member 20 of the imaging device and the separation member 33 of the developing unit 30. Specifically, the force application member 20 of the imaging device moves to drive the separation member 33, which in turn drives at least a portion of the power connection assembly 13 to move relative to the photosensitive drum 12, thereby achieving the state switching of the power connection assembly 13. The specific mode of movement of the power connection assembly 13 is not limited.

[0062] For example, see Figure 3 , Figure 4 , Figure 11 and Figure 13The power connection assembly 13 includes a first connection structure 136 and a second connection structure 137. The first connection structure 136 is disposed on the photosensitive drum 12, and the second connection structure 137 is disposed on the first power receiving member 14. The first connection structure 136 includes a movable member. Under the action of the force applying member 20, the movable member can move relative to the photosensitive drum 12 along at least one of the radial and axial directions, switching between contacting and separating from the second connection structure 137, thereby switching the power connection assembly 13 between an engaged state and a disengaged state. This allows for better transmission or non-transmission of driving force.

[0063] Specifically, since the first connecting structure 136 is disposed on the photosensitive drum 12 and the second connecting structure 137 is disposed on the first power receiver 14, by engaging the first connecting structure 136 and the second connecting structure 137, the first power receiver 14 can drive the photosensitive drum 12 to rotate. Conversely, by disengaging the first connecting structure 136 and the second connecting structure 137, the first power receiver 14 cannot drive the photosensitive drum 12 to rotate.

[0064] In other words, when the movable part abuts against the second connecting structure 137, the power connection assembly 13 is in an engaged state. And when the movable part separates from the second connecting structure 137, the power connection assembly 13 is in a disengaged state.

[0065] Depending on the actual situation, under the action of the force-applying member 20, and through the transmission of the separating member 33, the movable member can move radially relative to the photosensitive drum 12 to achieve state switching of the power connection assembly 13. In some embodiments, under the action of the force-applying member 20, and through the transmission of the separating member 33, the movable member can also move axially relative to the photosensitive drum 12 to achieve state switching of the power connection assembly 13. Of course, in other embodiments, the movable member can also move both axially and radially to achieve state switching of the power connection assembly 13.

[0066] In the processing box of this application embodiment, the photosensitive unit 10 of the processing box includes a second housing 11, a photosensitive drum 12, a power connection assembly 13, and a first power receiver 14. The power connection assembly 13 has an engaged state and a disengaged state. When the power connection assembly 13 is in the engaged state, the first power receiver 14 is driven connected to the photosensitive drum 12. When the power connection assembly 13 is in the disengaged state, the first power receiver 14 is disconnected from the photosensitive drum 12. Under the action of the force of the force-applying member 20, at least a portion of the power connection assembly 13 moves relative to the photosensitive drum 12, thereby switching the power connection assembly 13 between the engaged state and the disengaged state. That is, through the action of the force-applying member 20 of the imaging device, the power connection assembly 13 can be switched between the engaged state and the disengaged state, thereby enabling the photosensitive drum 12 and the first power receiver 14 to switch between driving connection and disengagement. Therefore, when the photosensitive unit 10 is required to participate in the development process, the force applied by the force member 20 can cause the power connection assembly 13 to move into an engaged state, allowing the first power receiver 14 to drive the photosensitive drum 12 to rotate, thus achieving better development. Furthermore, when the photosensitive unit 10 is not required to participate in the development process, the force applied by the force member 20 can cause the power connection assembly 13 to move into a disengaged state, preventing the first power receiver 14 from driving the photosensitive drum 12 to rotate, and thus the photosensitive unit 10 will not participate in the development process. This reduces wear on the photosensitive drum 12 and extends the service life of the processing cartridge.

[0067] In one embodiment, see Figure 8 , Figure 9 , Figure 18 and Figure 19 The first connecting structure 136 includes a first movable member 131 and a pushing structure 132 located between the photosensitive drum 12 and the first power receiving member 14. Along the axial direction of the photosensitive drum 12, the first movable member 131 is slidably disposed at one end of the photosensitive drum 12. The side of the first movable member 131 near the second connecting structure 137 has a first engagement portion 1311, and the side of the second connecting structure 137 near the first movable member 131 has a second engagement portion 1371.

[0068] The pushing structure 132 is movably mounted on the second housing 11. The separating member 33 is used to drive the pushing structure 132 to move under the force of the applying member 20. Under the force of the applying member 20, the pushing structure 132 pushes the first movable member 131 along the axial direction of the photosensitive drum 12, so that the first joint 1311 switches between connection and separation with the second joint 1371, and the power connection assembly 13 switches between the engaged state and the disengaged state. Thus, by moving the applying member 20, the separating member 33 drives the pushing structure 132 to move, which can better realize the axial movement of the first movable member 131 along the photosensitive drum 12, realize the connection and separation with the second connection structure 137, and better realize the state switching of the power connection assembly 13.

[0069] Specifically, the first movable member 131 can slide relative to the photosensitive drum 12 along the axial direction of the photosensitive drum 12. In fact, when the first power receiving member 14 drives the first movable member 131 to rotate, the first movable member 131 can also drive the photosensitive drum 12 to rotate. Furthermore, the specific connection method between the two can be set according to the actual situation.

[0070] For example, see Figure 9 and Figure 18 The photosensitive unit 10 includes a first base 15 disposed at one end of the photosensitive drum 12. One end of the first base 15 has a mounting cavity, within which a guide post extending axially along the photosensitive drum 12 is formed. At least a portion of a first movable member 131 is slidably disposed within the mounting cavity, and the first movable member 131 has a guide notch corresponding to the guide post. The guide post is slidably engaged in the guide notch, allowing the first movable member 131 to slide axially relative to the photosensitive drum 12 and enabling the first movable member 131 to drive the photosensitive drum 12 to rotate.

[0071] The first joint 1311 is a structure on the first movable member 131 for engaging with the second joint 1371 of the second connecting structure 137. When the first joint 1311 is connected to the second joint 1371, the first power receiving member 14 can drive the photosensitive drum 12 to rotate by rotation.

[0072] When the first joint 1311 separates from the second joint 1371, the first power receiver 14 disconnects from the photosensitive drum 12, and even if the first power receiver 14 rotates, it cannot drive the photosensitive drum 12 to rotate.

[0073] The connection and separation of the first joint 1311 and the second joint 1371 are achieved by the sliding of the first movable member 131 along the axial direction of the photosensitive drum 12. The sliding of the first movable member 131 along the axial direction of the photosensitive drum 12 is achieved by the pushing of the pushing structure 132, and the pushing of the pushing structure 132 is achieved by the force of the force-applying member 20.

[0074] In other words, the force-applying component 20 can move, causing the separating component 33 to move, thereby driving the pushing structure 132 to move. The pushing structure 132 can push the first movable component 131 to slide along the axial direction of the photosensitive drum 12. Depending on the sliding direction of the first movable component 131, the connection and separation of the first joint 1311 and the second joint 1371 can be realized. The specific structural form of the two joints is not limited.

[0075] For example, see Figure 14 and Figure 17 A portion of the first movable member 131 protrudes from the side near the second connecting structure 137 to form a plurality of spaced-apart first protrusions (i.e., first joints 1311). A portion of the second connecting structure 137 protrudes from the side near the first movable member 131 to form a plurality of spaced-apart second protrusions (i.e., second joints 1371). The second protrusions engage with the gaps between two first protrusions to connect the first joints 1311 and the second joints 1371.

[0076] For example, the first joint 1311 and the second joint 1371 can also be connected and separated by a shaft hole.

[0077] The specific structural form of the jacking structure 132 can be set according to the actual situation. For example, see... Figures 10 to 14 The photosensitive unit 10 includes a first base 15 disposed at one end of the photosensitive drum 12. The push structure 132 includes a first elastic member 1321, a first push member 1322, and a second push member 1323. The opposite ends of the first elastic member 1321 are respectively connected to the first base 15 and the first movable member 131. The first push member 1322 is rotatably disposed on the second housing 11 and is located on the side of the first movable member 131 away from the photosensitive drum 12. The separating member 33 is used to drive the first push member 1322 to move under the force of the force application member 20. The second push member 1323 is slidably disposed between the first movable member 131 and the first push member 1322.

[0078] See Figure 15 and Figure 16The second pusher 1323 has a first inclined surface 1323a on the side near the first pusher 1322, and the first pusher 1322 has a second inclined surface 1322a on the side near the second pusher 1323. The second inclined surface 1322a and the first inclined surface 1323a are slidably in contact. Under the action of the force applied by the force member 20, the first inclined surface 1323a slides relative to the second inclined surface 1322a, so that the second pusher 1323 pushes the first movable member 131 along the axial direction of the photosensitive drum 12. Thus, the pusher structure 132 can effectively push the first movable member 131 under the action of the force applied by the force member 20, thereby effectively realizing the state switching of the power connection assembly 13.

[0079] Specifically, the first elastic member 1321 is disposed between the photosensitive drum 12 and the first movable member 131, while the first pusher 1322 and the second pusher 1323 are disposed on the side of the first movable member 131 away from the photosensitive drum 12.

[0080] The first pusher 1322 can rotate relative to the second housing 11 at a certain angle, while the second pusher 1323 can slide axially relative to the second housing 11 but cannot rotate relative to it. The second inclined surface 1322a of the first pusher 1322 and the first inclined surface 1323a of the second pusher 1323 are both inclined surfaces that are radially and / or axially inclined relative to the photosensitive drum 12. The degree of inclination can be the same or different. The goal is to allow a change in the axial distance between the first pusher 1322 and the second pusher 1323.

[0081] Under the force of the force-applying member 20, the first pushing member 1322 is driven to move by the separating member 33. The first pushing member 1322 can rotate a certain angle relative to the second housing 11. Due to the interaction between the first inclined surface 1323a and the second inclined surface 1322a, the second pushing member 1323 can slide relative to the second housing 11, thereby pushing the first movable member 131 along the axial direction of the photosensitive drum 12. The first movable member 131 moves towards the photosensitive drum 12 under the pushing of the second pushing member 1323, thereby separating the first joint 1311 from the second joint 1371. At this time, the first elastic member 1321 is in a compressed state.

[0082] When the force-applying member 20 moves in the opposite direction, the force-applying member 20 will not push the separating member 33, and the first pushing member 1322 can also rotate in the opposite direction relative to the second housing 11. The first movable member 131 and the second pushing member 1323 can move away from the photosensitive drum 12 under the action of the elastic force of the first elastic member 1321, thereby reconnecting the first joint 1311 and the second joint 1371.

[0083] It should be noted that the second pusher 1323 may have only one first inclined surface 1323a or multiple first inclined surfaces 1323a. Correspondingly, the first pusher 1322 may have only one second inclined surface 1322a or multiple second inclined surfaces 1322a.

[0084] In one embodiment, see Figure 9 The developing unit 30 also includes a first transmission structure 34 movably disposed on the first housing 31. The first transmission structure 34 has an abutment groove, and a portion of the separating member 33 protrudes to form an abutment post, which is slidably disposed in the abutment groove. A portion of the pushing structure 132 is disposed on the first transmission structure 34. This facilitates the separating member 33 in driving the first transmission structure 34, thereby enabling better state switching of the power connection assembly 13.

[0085] It should be noted that the resetting of the separating member 33 can also be achieved by providing an elastic element. For example, the separating member 33 is connected to the first housing 31 through an elastic element, so that when the force-applying member 20 moves in the opposite direction, the separating member 33 can be reset under the action of the elastic element.

[0086] The specific structure of the first transmission structure 34 is not limited. For example, the first transmission structure 34 includes a first slider 341 and a first connecting member 342. The first connecting member 342 has a slot and is disposed on the first slider 341. A portion of the first pushing member 1322 is engaged in the slot. The first slider 341 has an abutment groove.

[0087] It should be noted that the force-applying component 20 of the imaging device can switch the state of the power connection assembly 13 by moving. However, depending on the structure of the force-applying component 20, the state of the power connection assembly 13 can be maintained in different ways. For example, after the force-applying component 20 moves to drive the separating component 33, the separating component 33 can be kept in an engaged or disengaged state by directly contacting the power connection assembly 13 or other transmission structures.

[0088] For example, the developing unit 30 also includes a retaining structure 35, which keeps the power connection assembly 13 in an engaged or disengaged state. The force-applying member 20 moves to move the separating member 33 and switches the state of the retaining structure 35, thereby switching the state of the power connection assembly 13.

[0089] For example, see Figure 18 and Figure 19The developing unit 30 also includes a retaining structure 35, which is movably disposed on the first housing 31. A portion of the pushing structure 132 is disposed on the retaining structure 35. A separating member 33 is used to drive the retaining structure 35 to move under the force of the applying member 20. The retaining structure 35 has a first retaining state in which the power connection assembly 13 is engaged, and a second retaining state in which the power connection assembly 13 is disengaged. Under the force of the applying member 20, the retaining structure 35 switches between the first and second retaining states by moving. Thus, the state of the power connection assembly 13 can be maintained by the retaining structure 35 without the continuous contact of the applying member 20.

[0090] The retaining structure 35 is used to keep the power connection assembly 13 in an engaged or disengaged state.

[0091] When the retaining structure 35 is in the first retaining state, it enables the power connection assembly 13 to be in the engaged state. When the retaining structure 35 is in the second retaining state, it enables the power connection assembly 13 to be in the disengaged state.

[0092] The retaining structure 35 achieves its state switching through movement. The movement of the retaining structure 35 is achieved by the force applied by the force-applying component 20.

[0093] Therefore, the processing box of this embodiment is still applicable to imaging devices where the force-applying component 20 returns to its initial position after movement. Furthermore, the specific structural type of the retaining structure 35 can be set according to actual circumstances.

[0094] For example, see Figure 18 and Figure 19 The retaining structure 35 includes a second elastic member 351 and a second transmission structure 352. A portion of the pushing structure 132 is disposed on the second transmission structure 352. The two opposite ends of the second elastic member 351 are respectively connected to the first housing 31 and the second transmission structure 352. The second transmission structure 352 has an abutting arm 3521, which is detachably abutted against the first housing 31. The separating member 33 has an unlocking part 331, which is detachably abutted against the abutting arm 3521.

[0095] When the retaining structure 35 is in the second retaining state, the abutment arm 3521 abuts against the first housing 31, and the second elastic member 351 is in a stretched state. Under the action of the force-applying member 20, the unlocking part 331 moves to abut against the abutment arm 3521, separating the abutment arm 3521 from the first housing 31. The second transmission structure 352, under the elastic action of the second elastic member 351, drives the pushing structure 132 to move, and the retaining structure 35 switches to the first retaining state. Thus, the retaining function of the retaining structure 35 can be better achieved, and the state of the power connection assembly 13 can be better maintained.

[0096] Specifically, the abutment arm 3521 of the second transmission structure 352 has two states: abutting with the first housing 31 and separating. When the abutment arm 3521 of the second transmission structure 352 abuts with the first housing 31, the abutment action of the abutment arm 3521 with the first housing 31 will cause the second elastic member 351 to be in a stretched state and unable to retract, thereby allowing the power connection assembly 13 to be in a disengaged state and the retaining structure 35 to be in a second retaining state.

[0097] When the force-applying member 20 moves, it causes the separating member 33 to move. The unlocking part 331 of the separating member 33 abuts against the abutting arm 3521 and pushes the abutting arm 3521, thereby separating the abutting arm 3521 from the first housing 31. As a result, under the elastic force of the second elastic member 351, the second transmission structure 352 moves relative to the first housing 31, thereby driving the pushing structure 132 to move, so that the power connection assembly 13 is in the engaged state and the holding structure 35 is in the first holding state.

[0098] It should be noted that when the force-applying member 20 moves in the opposite direction to push the second transmission structure 352 in the opposite direction, the abutting arm 3521 of the second transmission structure 352 can abut against the first housing 31 again, the second elastic member 351 is in a stretched state again and cannot retract, and the holding structure 35 switches to the second holding state.

[0099] It should be noted that the retaining structure 35 may also include a third elastic member, the two opposite ends of which are connected to the separating member 33 and the first housing 31 respectively, thereby enabling the automatic reset of the separating member 33.

[0100] The specific structural form of the unlocking part 331 of the separating member 33 is not limited. For example, a part of the separating member 33 may protrude to form the unlocking part 331.

[0101] The movement of the separator 33 is not limited, such as the separator 33 being rotatably mounted on the first housing 31.

[0102] The specific structure of the second transmission structure 352 is not limited. For example, the second transmission structure 352 includes a second slider 3522 and a second connecting member 3523. The second connecting member 3523 has a slot and is disposed on the second slider 3522. A portion of the first pushing member 1322 is engaged in the slot. The second slider 3522 has an abutment arm 3521.

[0103] In one specific embodiment, when the processing box is installed, the force-applying component 20 of the imaging device is in the middle position. See [link to relevant documentation]. Figure 20 The force-applying component 20 of the imaging device moves towards the photosensitive drum 12, abutting against the separating component 33, causing the separating component 33 to rotate. The unlocking part 331, through movement, separates the abutting arm 3521 from the first housing 31, thus completing the unlocking process, and the power connection assembly 13 is in the engaged state. When the force-applying component 20 of the imaging device moves back to the intermediate position, it no longer applies abutting force to the separating component 33. The power connection assembly 13 remains in the engaged state under the elastic force of the second elastic member 351. The separating component 33 is pulled back to its initial position under the action of the elastic member. See... Figure 21 When the processing cartridge does not develop, the force-applying component 20 of the imaging device moves away from the photosensitive drum 12, and the force-applying component 20 abuts against the second transmission structure 352, so that the second transmission structure 352 moves until the abutment arm 3521 abuts against the first housing 31 again, and the power connection assembly 13 switches to the disengaged state. See Figure 22 The force-applying component 20 of the imaging device moves back to the middle position and no longer applies abutting force to the second transmission structure 352. The power connection assembly 13 remains disengaged as the abutting arm 3521 abuts against the first housing 31.

[0104] In one embodiment, see Figures 2 to 5 The first connecting structure 136 includes a second base 133 and a second movable member 134. The second base 133 is disposed at one end of the photosensitive drum 12. The second base 133 has a receiving cavity 133a. One end of the receiving cavity 133a is open to form an extension inlet 133b. A portion of the cavity wall of the receiving cavity 133a is open to form a mounting opening 133c. The second movable member 134 is movably disposed at the mounting opening 133c. A portion of the second connecting structure 137 extends into the receiving cavity 133a through the extension inlet 133b. The separating member 33 is used to cooperate with the force-applying member 20 to drive the second movable member 134 to move.

[0105] Under the force of the force-applying member 20, a portion of the second movable member 134 moves radially along the second base 133 to switch between contacting and separating from the second connecting structure 137. This allows for better state switching of the power connection assembly 13.

[0106] Specifically, the receiving cavity 133a of the second base 133 is used to allow a portion of the second connecting structure 137 to extend into it. The second movable member 134 is movably disposed at the mounting port 133c. The second movable member 134 and the second base 133 can be an integrally formed structure or a separate structure.

[0107] In fact, the second movable member 134 has a connecting end that connects to the second base 133, and a movable end that can move relative to the second base 133. Under the action of the force applied by the force-applying member 20, the movable end of the second movable member 134 can move radially along the second base 133.

[0108] Specifically, the movable end of the second movable member 134 extends into the receiving cavity 133a, which facilitates contact with the second connecting structure 137, so that the first power receiving member 14 can drive the photosensitive drum 12 to rotate by rotating.

[0109] Furthermore, when the force-applying member 20 moves in the opposite direction, the movable end of the second movable member 134 can move away from the receiving cavity 133a to separate from the second connecting structure 137.

[0110] In one embodiment, see Figure 2 and Figure 6 The power connection assembly 13 also includes a transmission member 135, which is sleeved on the second base 133 and movably abuts against the second movable member 134. Under the action of the force applied by the force member 20, the separating member 33 drives the transmission member 135 to slide axially along the second base 133, so that the second movable member 134 moves radially along the second base 133. Thus, the force applied by the force member 20 can be effectively transmitted to the second movable member 134, allowing the second movable member 134 to move more effectively.

[0111] Specifically, under the action of the force-applying member 20, when the transmission member 135 slides along the axial direction of the second base 133 to abut against the movable end of the second movable member 134, the abutting force transmitted by the transmission member 135 to the second movable member 134 causes the movable end of the second movable member 134 to extend into the receiving cavity 133a to abut against the second connecting structure 137. When the force-applying member 20 moves in the opposite direction, the transmission member 135 can slide in the opposite direction along the axial direction of the second base 133, causing the movable end of the second movable member 134 to separate from the second connecting structure 137.

[0112] The specific structural form of the transmission component 135 is not limited; for example, the transmission component 135 can be a ring structure.

[0113] In one embodiment, see Figure 2 and Figure 7The separating member 33 has a third inclined surface 33a, and the transmission member 135 has a fourth inclined surface 135a that fits against the third inclined surface 33a. Under the action of the force-applying member 20, the separating member 33 moves to make the third inclined surface 33a slide relative to the fourth inclined surface 135a, thereby pushing the transmission member 135 along the axial direction of the second base 133. As a result, the transmission member 135 can be moved more effectively, so as to achieve a better force transmission effect.

[0114] Specifically, the third inclined surface 33a is used to cooperate with the fourth inclined surface 135a, and the inclination angles of the two can be the same or different. The force-applying member 20 pushes the separating member 33 to make the third inclined surface 33a slide relative to the fourth inclined surface 135a, thereby driving the transmission member 135 to slide.

[0115] In one embodiment, the developing unit 30 further includes a positioning post disposed on the first housing 31 and an elastic member sleeved on the positioning post. The opposite ends of the elastic member are respectively connected to the separating member 33 and the first housing 31, so that the separating member 33 can be better maintained in the position where the power connection assembly 13 is in the engaged state.

[0116] In one embodiment, the developing unit 30 includes a clutch assembly and a second power receiver. The second power receiver is rotatably disposed on a first housing 31. The clutch assembly is disposed at one end of the developing roller 32. A separating member 33 is used to cooperate with a force-applying member 20 to drive the clutch assembly to move. When the clutch assembly is engaged, the second power receiver is driven to connect with the developing roller 32. When the clutch assembly is disengaged, the second power receiver is disengaged from the developing roller 32. Under the action of the force of the force-applying member 20, at least a portion of the clutch assembly moves relative to the developing roller 32, causing the clutch assembly to switch between engagement and disengagement.

[0117] In other words, a clutch assembly is provided between the developing roller 32 and the second power receiver. By switching between engagement and disengagement, the driving connection between the developing roller 32 and the second power receiver can be switched between being connected and disconnected. Therefore, when the processing cartridge does not require development, the driving connection between the developing roller 32 and the second power receiver can be disconnected, preventing the developing roller 32 from rotating. Thus, even if the developing roller 32 remains in contact with the photosensitive drum 12, the toner on the developing roller 32 is less likely to be adsorbed onto the photosensitive drum 12. Of course, in other embodiments, the clutch assembly may not be provided between the developing roller 32 and the second power receiver.

[0118] In one embodiment, the developing unit 30 includes an acceleration / deceleration assembly and a second power receiver. The second power receiver is rotatably mounted on a first housing 31. The acceleration / deceleration assembly is disposed at one end of the developing roller 32. A separating member 33 cooperates with a force-applying member 20 to drive the acceleration / deceleration assembly. Under the force of the force-applying member 20, at least a portion of the acceleration / deceleration assembly moves relative to the developing roller 32, causing the assembly to switch between engagement and disengagement, thereby switching the rotational speed of the developing roller 32 driven by the second power receiver between increasing and decreasing. Thus, the rotational speed of the developing roller 32 can be adjusted as needed to meet the user's actual requirements.

[0119] In other words, an acceleration / deceleration assembly is provided between the developing roller 32 and the second power receiving unit. Engaging this assembly increases the rotational speed of the developing roller 32 driven by the second power receiving unit. Disengaging the assembly reduces the rotational speed. It should be noted that during the reduction of the rotational speed of the developing roller 32 driven by the second power receiving unit, the rotational speed can be reduced to 0 or maintained at a low speed. This can be set according to actual needs.

[0120] In one specific embodiment, see Figure 3 The force-applying component 20 is in the first position. The separating component 33 abuts against the transmission component 135 under the abutting action of the elastic component. The transmission component 135 abuts against the movable end of the second movable component 134, causing the movable end of the second movable component 134 to extend into the receiving cavity 133a and abut against the second connecting structure 137. The power connection assembly 13 is in the engaged state. See [link / description]. Figure 4 When the force-applying member 20 moves to the second position, it pushes the separating member 33 away from the photosensitive drum 12, and the elastic member is compressed. The transmission member 135 will not block the movable end of the second movable member 134, and the movable end of the second movable member 134 can be reset to separate from the second connecting structure 137, and the power connection assembly 13 is in a disengaged state.

[0121] In the description of this application, those skilled in the art can combine the different embodiments or examples described herein, as well as the features of the different embodiments or examples, without contradiction. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the protection scope of this application.

Claims

1. A processing box, characterized in that, The processing box is used in conjunction with an imaging device equipped with a force-applying component, and the processing box includes: A developing unit, the developing unit comprising a first housing and a developing roller, the developing roller being rotatably disposed on the first housing; A photosensitive unit, comprising a second housing, a photosensitive drum, a power connection assembly, and a first power receiver, wherein the photosensitive drum and the first power receiver are rotatably mounted on the second housing, and the power connection assembly is disposed at one end of the photosensitive drum; An operable separator for engaging with the force-applying element to drive the power connection assembly. The power connection assembly has an engaged state and a disengaged state. When the power connection assembly is in the engaged state, the first power receiver is driven to connect with the photosensitive drum. When the power connection assembly is in the disengaged state, the first power receiver is disengaged from the photosensitive drum. Under the action of the force applied by the force-applying member, at least a portion of the power connection assembly moves relative to the photosensitive drum, so that the power connection assembly switches between the engaged state and the disengaged state.

2. The processing box according to claim 1, characterized in that, The power connection assembly includes a first connection structure and a second connection structure. The first connection structure is disposed on the photosensitive drum, and the second connection structure is disposed on the first power receiving member. The first connection structure includes a movable member. Under the action of the force applied by the force member, the movable member can move relative to the photosensitive drum along at least one of the radial and axial directions, switching between contacting and separating from the second connection structure, so that the power connection assembly switches between the engaged state and the disengaged state.

3. The processing box according to claim 2, characterized in that, The first connecting structure includes a first movable member and a pushing structure located between the photosensitive drum and the first power receiving member. Along the axial direction of the photosensitive drum, the first movable member is slidably disposed at one end of the photosensitive drum. The first movable member has a first engagement portion on the side near the second connecting structure, and the second connecting structure has a second engagement portion on the side near the first movable member. The jacking structure is movably mounted on the second housing, and the separating member is used to drive the jacking structure to move under the force of the force-applying member; Under the force of the force-applying component, the pushing structure pushes the first movable component along the axial direction of the photosensitive drum, so that the first joint can switch between being connected to and separated from the second joint, and the power connection assembly can switch between the engaged state and the disengaged state.

4. The processing box according to claim 3, characterized in that, The photosensitive unit includes a first base disposed at one end of the photosensitive drum. The pushing structure includes a first elastic member, a first pushing member, and a second pushing member. The opposite ends of the first elastic member are respectively connected to the first base and the first movable member. The first pushing member is rotatably disposed on the second housing and located on the side of the first movable member away from the photosensitive drum. The separating member is used to drive the first pushing member to move under the force of the applying member. The second pushing member is slidably disposed between the first movable member and the first pushing member. The second pusher has a first inclined surface on the side near the first pusher, and the first pusher has a second inclined surface on the side near the second pusher. The second inclined surface slidably abuts against the first inclined surface. Under the action of the force applied by the force-applying member, the first inclined surface slides relative to the second inclined surface, so that the second pusher pushes the first movable member along the axial direction of the photosensitive drum.

5. The processing box according to claim 3 or 4, characterized in that, The developing unit further includes a first transmission structure movably disposed on the first housing, the first transmission structure having an abutment groove, a portion of the separating member protruding to form an abutment post, the abutment post being slidably disposed in the abutment groove, and a portion of the pushing structure being disposed on the first transmission structure.

6. The processing box according to claim 3 or 4, characterized in that, The developing unit further includes a retaining structure movably disposed on the first housing. A portion of the pushing structure is disposed on the retaining structure. The separating member is used to drive the retaining structure to move under the force of the applying member. The retaining structure has a first retaining state that puts the power connection assembly in the engaged state and a second retaining state that puts the power connection assembly in the disengaged state. Under the force of the applying member, the retaining structure can switch between the first retaining state and the second retaining state by moving.

7. The processing box according to claim 6, characterized in that, The retaining structure includes a second elastic member and a second transmission structure. A portion of the pushing structure is disposed on the second transmission structure. The opposite ends of the second elastic member are respectively connected to the first housing and the second transmission structure. The second transmission structure has an abutting arm that can be detachably abutted against the first housing. The separating member has an unlocking part that can be detachably abutted against the abutting arm. When the retaining structure is in the second retaining state, the abutting arm abuts against the first housing, and the second elastic member is in a stretched state; under the action of the force applied by the force member, the unlocking part moves to abut against the abutting arm, and the abutting arm separates from the first housing, and the second transmission structure drives the pushing structure to move under the elastic action of the second elastic member, and the retaining structure switches to the first retaining state.

8. The processing box according to claim 2, characterized in that, The first connecting structure includes a second base and a second movable member. The second base is disposed at one end of the photosensitive drum and has a receiving cavity. One end of the receiving cavity is open to form an extension port. A portion of the cavity wall of the receiving cavity is open to form an installation port. The second movable member is movably disposed at the installation port. A portion of the second connecting structure extends into the receiving cavity through the extension port. The separating member is used to cooperate with the force-applying member to drive the second movable member to move. Under the action of the force applied by the force-applying member, a portion of the second movable member moves radially along the second base to switch between contacting and separating from the second connecting structure.

9. The processing box according to claim 8, characterized in that, The power connection assembly further includes a transmission component, which is sleeved on the second base and movably abuts against the second movable component. Under the action of the force applied by the force-applying component, the separating component drives the transmission component to slide along the axial direction of the second base, so that the second movable component moves radially along the second base. The separating member has a third inclined surface, and the transmission member has a fourth inclined surface that fits against the third inclined surface. Under the action of the force applied by the force-applying member, the separating member moves to make the third inclined surface slide relative to the fourth inclined surface, so as to push the transmission member along the axial direction of the second base.

10. The processing box according to any one of claims 1-4, characterized in that, The developing unit includes a clutch assembly and a second power receiving unit. The second power receiving unit is rotatably mounted on the first housing. The clutch assembly is located at one end of the developing roller. The separating member is used to cooperate with the force applying member to drive the clutch assembly to move. When the clutch assembly is engaged, the second power receiver is driven to the developing roller; when the clutch assembly is disengaged, the second power receiver is disconnected from the developing roller. Under the force of the force-applying component, at least a portion of the clutch assembly moves relative to the developing roller, causing the clutch assembly to switch between engagement and disengagement. or, The developing unit includes an acceleration / deceleration assembly and a second power receiving unit. The second power receiving unit is rotatably mounted on the first housing. The acceleration / deceleration assembly is located at one end of the developing roller. The separating member is used to cooperate with the force applying member to drive the acceleration / deceleration assembly to move. Under the force of the force-applying member, at least a portion of the acceleration / deceleration assembly moves relative to the developing roller, causing the acceleration / deceleration assembly to switch between engagement and disengagement, so that the rotational speed at which the second power receiving member drives the developing roller to rotate switches between increasing and decreasing.

Images