Processing box and electronic photographic imaging device

Abstract

The present invention provides a process cartridge and an electrophotographic imaging device. The process cartridge includes a cartridge body, a developing roller, a photosensitive drum, and a guide assembly. The developing roller is rotatably mounted on the cartridge body and provided with a gear assembly. The photosensitive drum is rotatably mounted on the cartridge body and provided with a transmission member and a photosensitive drum gear. The photosensitive drum gear meshes with a gear of the gear assembly. The gear assembly is located between the guide assembly and the second end of the developing roller. The guide assembly includes two or more guide wheels, which are rotatably mounted on the cartridge body about their third rotation axis. The two or more guide wheels are distributed along the circumference of the transmission member and are configured to abut against peripheral gears of a drive head within the electrophotographic imaging device. The third rotation axis is parallel to the first rotation axis. The electrophotographic imaging device is provided with the process cartridge, which enables the drive head of the electrophotographic imaging device to precisely engage with the process cartridge.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic photographic imaging, in particular to a processing box and an electronic photographic imaging device provided with the processing box. Background Art

[0002] An electrophotographic imaging device (such as a laser printer) is a device that uses the principles of electrophotography to form an image on an image forming medium (such as paper) through at least the processes of charging, exposure, development, transfer, fixing, and cleaning. The material device for printing consumables used in electrophotographic imaging devices is generally called a processing cartridge.

[0003] However, since there are many ways to process the processing box in existing electronic photographic imaging devices, in order to improve the versatility of the processing box, the invention patent application with publication number CN110347029A discloses a processing box, which has a two-stage gear at the end of the developing roller. However, it was found in actual use that when the driving force receiving head of the photosensitive drum in the processing box is coupled with the driving head with gears in the electronic photographic imaging device, due to the long length of the driving head, the driving head is prone to swing during the coupling process between the free end of the driving head and the driving force receiving head, making the coupling of the driving force receiving head and the driving head difficult. Summary of the Invention

[0004] In order to solve the above problems, the main object of the present invention is to provide a process box that can accurately engage the driving head of an electronic photographic imaging device with the process box.

[0005] Another object of the present invention is to provide an electronic photographic imaging device provided with the above-mentioned process cartridge.

[0006] In order to achieve the main purpose of the present invention, the present invention provides a processing box, including a box body, a developing roller and a photosensitive drum, the developing roller is rotatably mounted on the box body, a gear assembly is provided on the developing roller, the photosensitive drum is rotatably mounted on the box body, a transmission member and a photosensitive drum gear are provided on the photosensitive drum, the photosensitive drum gear is engaged with the gear of the gear assembly, wherein the processing box also includes a guide assembly, the gear assembly is located between the guide assembly and the second end of the developing roller, the guide assembly includes more than two guide wheels, the guide wheels are rotatably mounted on the box body around their own third rotation axis, the more than two guide wheels are distributed along the circumference of the transmission member, and the guide wheels are used to be adjacent to the peripheral gears of the drive head in the electronic photographic imaging device.

[0007] As can be seen from the above, when the processing box is installed in the electronic photographic imaging device, the guide wheel cooperates with the peripheral gear of the drive head in the electronic photographic imaging device to guide, position and support the drive head, so that the drive head can smoothly and accurately engage with the second coupling part of the transmission part on the photosensitive drum and / or the gear assembly on the developing roller, so that the drive head can stably and reliably drive the photosensitive drum and / or the developing roller to rotate, ensuring the stability and reliability of the processing box and the electronic photographic imaging device.

[0008] A further solution is that more than two groups of slide groove groups are provided on the box body, the slide grooves of one group of slide groove groups extend toward the peripheral gear along a radial direction of the peripheral gear, and a guide wheel is slidably connected to one group of slide groove groups; the box body includes an actuating mechanism, which forces the guide wheel to move toward the peripheral gear.

[0009] As can be seen from the above, by setting up the slide groove group, the processing box can be adapted to the peripheral gears of drive heads of different sizes. At the same time, the driving mechanism enables the guide wheel to be close to the peripheral gear of the drive head, thereby playing a precise guiding and positioning role in the docking of the drive head and the processing box, and playing a certain supporting role for the drive head.

[0010] A further solution is that the box body includes a developing frame, a drum frame, a first end cover and a second end cover, the developing roller is rotatably mounted on the developing frame around a first rotating axis, the photosensitive drum is rotatably mounted on the drum frame around a second rotating axis, the first end cover is respectively connected to the first end of the developing frame and the first end of the drum frame, the transmission member is arranged at the first end of the photosensitive drum, the first end cover is provided with an opening near the peripheral gear, the slide groove group is formed on the first end cover, a part of the guide wheel can extend out of the first end cover from the opening, and the second end cover is respectively connected to the second end of the developing frame and the second end of the drum frame.

[0011] As can be seen from the above, the above design makes the structure of the box body more reasonable, and also makes the assembly, parts replacement and maintenance of the processing box more convenient.

[0012] A preferred solution is that the driving mechanism is two symmetrically arranged side walls of the slide, and the two side walls are arranged in a V-shape; in the extension direction of the slide, the two side walls have a first spacing at the end close to the opening, and the two side walls have a second spacing at the end away from the opening, the first spacing is greater than the second spacing, and the two side walls cooperate to force the guide wheel to move outward from the opening.

[0013] As can be seen from the above, the above design enables the guide wheel to have a tendency to move toward the opening through cooperation with the two side walls of the slide groove, so that the guide wheel can be close to the peripheral gear of the drive head to accurately guide and position the peripheral gear.

[0014] Another preferred solution is that the actuating mechanism includes an elastic member connected between the first end cover and the guide wheel, and the elastic member forces the guide wheel to move outward from the opening.

[0015] As can be seen from the above, the elastic member can force the guide wheel to be close to the peripheral gear of the drive head, so as to accurately guide and position the peripheral gear.

[0016] Another preferred solution is that a support plate is provided inside the first end cover, and the slide groove group includes two slide grooves, one of the two slide grooves is formed on the outer wall of the first end cover, and the other of the two slide grooves is formed on the support plate; the guide wheel includes a shaft body and a wheel body, the first end of the shaft body is connected to the first slide groove, the second end of the shaft body is connected to the second slide groove, and the wheel body is used to be adjacent to the peripheral gear.

[0017] As can be seen from the above, the above design makes the installation of the guide wheel more convenient and easier to operate.

[0018] A further solution is that the angle between two adjacent chute groups is between 10° and 180°.

[0019] As can be seen from the above, the above design makes the relative positions of the guide wheels more reasonable, and enables each guide wheel to be close to the peripheral gear of the drive head to stably guide and position the drive head.

[0020] A further solution is that the wheel body of the guide wheel can be elastically deformed; when the wheel body is adjacent to the peripheral gear, the wheel body is tangent to the peripheral gear, or a part of the wheel body is located between the top circle of the peripheral gear and the root circle of the peripheral gear; in the axial direction, the first distance between the end of the wheel body close to the transmission member and the outer end face of the first end cover is smaller than the second distance between the end of the transmission member close to the wheel body and the outer end face.

[0021] As can be seen from the above, the elastically deformable guide wheel can avoid excessively hard contact with the peripheral gears of the drive head, thereby avoiding obstruction of the rotation of the drive head and preventing damage to the peripheral gears of the drive head; by designing the relative position between the wheel body and the peripheral gears of the drive head, it is ensured that the guide wheel can accurately guide and position the drive head while providing sufficient support force for the drive head, so that the drive head can dock with the second coupling part or gear assembly of the transmission member.

[0022] A further solution is that the wheel body is in a frustum shape, and the diameter of the first end of the wheel body close to the gear assembly is larger than the diameter of the end of the wheel body away from the gear assembly.

[0023] As can be seen from the above, setting the wheel body into a frustum shape allows for better guidance of the drive head during the engagement process between the drive head and the processing box, and the closer the drive head is to the processing box, the more accurate the guidance and positioning of the drive head by the guide wheel, and the closer the contact between the guide wheel and the peripheral gear of the drive head, which provides better support for the drive head while better reducing the impact on the driving force of the drive head.

[0024] In order to achieve another object of the present invention, the present invention provides an electronic photographic imaging device, including a main body, a cartridge compartment is arranged in the main body, a drive head is arranged in the cartridge compartment, the drive head has a peripheral gear and a first coupling part, wherein the above-mentioned processing box is installed in the cartridge compartment, the peripheral gear is adjacent to the guide wheel, the peripheral gear is engaged with the gear assembly and / or the second coupling part is coupled and connected to the first coupling part of the transmission member.

[0025] As can be seen from the above, the electronic photographic imaging device provided with the above-mentioned processing box can ensure that when the processing box is installed, the drive head can be smoothly and accurately coupled with the second coupling part of the transmission part on the photosensitive drum and / or engage with the gear assembly on the developing roller, so that the drive head can stably and reliably drive the photosensitive drum and / or developing roller to rotate, ensuring the stability and reliability of the operation of the processing box and the electronic photographic imaging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of the first embodiment of the processing box of the present invention.

[0027] Figure 2 This is a diagram showing the coordination structure of the guide assembly and the drive head of the first embodiment of the processing cartridge of the present invention.

[0028] Figure 3 This is a structural diagram of the first end cover of the first embodiment of the processing box of the present invention from a first viewing angle.

[0029] Figure 4 This is a structural diagram of the first end cover of the first embodiment of the processing box of the present invention from a second viewing angle.

[0030] Figure 5 It is a structural diagram of the first embodiment of the processing box of the present invention with some components omitted.

[0031] Figure 6 This is a structural diagram of the second embodiment of the processing box of the present invention with some components omitted.

[0032] Figure 7 It is a structural diagram of the third embodiment of the processing box of the present invention with some components omitted.

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0034] Process cartridge first embodiment

[0035] Reference Figure 1 The processing cartridge 100 includes a cartridge body 1, a developing roller, a photosensitive drum 3, and a guide assembly 4. The cartridge body 1 preferably includes a developing frame 11, a drum frame 12, a first end cap 13, and a second end cap 14. The developing roller is rotatably mounted on the two end walls of the developing frame 11 of the cartridge body 1 around its own first rotation axis, and a gear assembly 21 is provided on the developing roller. The photosensitive drum 3 is rotatably mounted on the two end walls of the drum frame 12 of the cartridge body 1 around its own second rotation axis, and a transmission member 31 and a photosensitive drum gear 311 are provided on the photosensitive drum 3. In this embodiment, the transmission member 31 and the photosensitive drum gear 311 are integrally formed, and a second coupling portion 312 is provided at the end of the transmission member 31. Of course, in other embodiments, the transmission member 31 and the photosensitive drum gear 311 may also be provided independently of each other, and the transmission member 31 and the photosensitive drum gear 311 may be provided at the same end of the photosensitive drum 3 or at two ends of the photosensitive drum 3. Preferably, the gear assembly 21 may include a first gear and a second gear, the first gear being adapted to engage with the photosensitive drum gear 311 of the transmission member 31; the second gear being adapted to engage with the peripheral gear 1011 of the drive head 101 in the electronic photographic imaging device.

[0036] The first end cap 13 is connected to the first end of the developing frame 11 and the first end of the drum frame 12, respectively, and the first end cap 13 is covered by the gear assembly 21. The second end cap 14 is connected to the second end of the developing frame 11 and the second end of the drum frame 12, respectively, so that the developing roller can be adjacent to the photosensitive drum 3 and the first gear of the gear assembly 21 is engaged with the photosensitive drum gear 311. The second coupling portion 312 on the transmission member 31 can be used to couple with the first coupling portion at the end of the drive head 101 in the electrophotographic imaging device, so that the drive head 101 can drive the photosensitive drum 3 to rotate about the second rotation axis through the transmission member 31.

[0037] Combine Figures 2 to 5 The guide assembly 4 is used to guide, position and support the drive head 101 so that after the processing box 100 is installed in the electronic photographic imaging device, the first coupling portion of the drive head 101 can be accurately coupled to the second coupling portion 312 of the transmission member 31 on the photosensitive drum 3 and / or the peripheral gear 1011 of the drive head 101 can be accurately engaged with the gear assembly 21 on the developing roller, and play a certain supporting role for the drive head 101, so that the drive head 101 can stably and reliably drive the photosensitive drum 3 and / or the developing roller to rotate, thereby ensuring the stability and reliability of the processing box 100 and the electronic photographic imaging device.

[0038] In the axial direction of the developing roller 3, the guide assembly 4 is located on the side of the transmission member 31 away from the photosensitive drum 3, and the guide assembly 4 is located between the first end cap 13 and the gear assembly 21. The guide assembly 4 includes two or more guide wheels 41, which are rotatably mounted on the housing 1 about their third rotation axis. The two or more guide wheels 41 are distributed along the circumference of the transmission member 31, so that the guide assembly 4 can abut against the peripheral gear 1011 of the drive head 101 in the electrophotographic imaging device. The first rotation axis, the second rotation axis, and the third rotation axis are parallel to each other.

[0039] Preferably, the box body 1 is provided with two or more chute groups 131, one group of chute groups 131 extends toward the peripheral gear 1011 along a radial direction of the peripheral gear 1011 of the transmission member 31, and a guide wheel 41 is slidably connected to one group of chute groups 131. In addition, the box body 1 preferably also includes an enabling mechanism, which can force the guide wheel 41 to move along the chute 1311 toward the peripheral gear 1011. The provision of the chute group 131 enables the processing box 100 to be suitable for the peripheral gears 1011 of the drive head 101 of different sizes. At the same time, the enabling mechanism enables the guide wheel 41 to be close to the peripheral gear 1011 of the drive head 101, thereby playing a precise guiding and positioning role for the docking of the drive head 101 and the processing box 100, and providing a certain support role for the drive head 101.

[0040] In this embodiment, a chute assembly 131 is formed on the first end cover 13. An opening 133 is provided on the first end cover 13 near the peripheral gear 1011, allowing a portion of the guide wheel 41 to extend out of the first end cover 13 through the opening 133. The actuating mechanism comprises two symmetrically arranged side walls 1312 of the chute 1311, preferably in a V-shaped configuration; that is, the side walls 1312 are non-parallel and have an acute angle therebetween. In the extension direction of the slide groove 1311, the two side walls 1312 of the slide groove 1311 have a first spacing L1 at one end close to the opening 133 on the end cover, and the two end walls have a second spacing L2 at the end away from the opening 133. The first spacing L1 is greater than the second spacing L2. By setting the two side walls 1312 of the slide groove 1311 into a V-shape, the guide wheel 41 can have a tendency to move toward the opening 133 through cooperation with the two side walls 1312 of the slide groove 1311, so that the guide wheel 41 can be close to the peripheral gear 1011 of the drive head 101 to accurately guide and position the peripheral gear 1011.

[0041] Furthermore, a support plate 132 is provided inside the first end cover 13. The chute group 131 includes two chute groups 1311 distributed along the axial direction of the developing roller. One of the two chute groups 1311 is formed on the outer wall 1312 of the first end cover 13, and the other of the two chute groups 1311 is formed on the support plate 132. The guide wheel 41 includes a shaft 411 and a wheel body 412. The first end of the shaft 411 is connected to the first chute 1311 of the corresponding set of chute groups 131, and the second end of the shaft 411 is connected to the second chute 1311 of the corresponding set of chute groups 131. The wheel body 412 is used to abut the peripheral gear 1011 of the drive head 101 to guide, position, and support the drive head 101. This design makes the installation of the guide wheel 41 more convenient and easy to operate. Preferably, the wheel body 412 of the guide wheel 41 is elastically deformable to avoid excessive hard contact between the guide wheel 41 and the peripheral gear 1011 of the drive head 101, thereby avoiding obstruction of the rotation of the drive head 101 and preventing damage to the peripheral gear 1011 of the drive head 101. In addition, when the wheel body 412 of the guide wheel 41 is adjacent to the peripheral gear 1011 of the drive head 101, the wheel body 412 is tangent to the peripheral gear 1011, or a portion of the wheel body 412 is located between the tooth top circle of the peripheral gear 1011 and the tooth root circle of the peripheral gear 1011, so as to ensure that the guide wheel 41 can accurately guide and position the drive head 101 while providing sufficient support force for the drive head 101, so that the drive head 101 can dock with the second coupling portion 312 of the transmission member 31 or the gear assembly 21. Furthermore, in the axial direction of the photosensitive drum 3 , a first distance between the end of the wheel body 412 close to the transmission member 31 and the outer end surface of the first end cover 13 is smaller than a second distance between the end of the transmission member 31 close to the wheel body 412 and the outer end surface of the first end cover 13 .

[0042] Furthermore, the angle a between two adjacent groups of the slide groove groups 131 is preferably between 10° and 180°, that is, in the axial direction of the developing roller, the angle a between the projection of the center line of the slide groove 1311 of one group of slide groove groups 131 and the projection of the axial center line of the slide groove 1311 of the other group of slide groove groups 131 is preferably between 10° and 180°, so as to ensure that the relative position of the guide wheels 41 is more reasonable, and each guide wheel 41 can be close to the peripheral gear 1011 of the drive head 101 to stably guide and position the drive head 101.

[0043] Here, a partial structure of the electronic photographic imaging device is briefly described. The electronic photographic imaging device includes a main body, a cartridge compartment is provided in the main body, a door cover is provided on the compartment opening of the cartridge compartment, and the above-mentioned drive head 101 is provided on the side wall of the cartridge compartment. The door cover is connected to the drive head 101, so that when the door cover is closed, the drive head 101 moves in the axial direction of the photosensitive drum 3 to the position where the processing cartridge 100 is placed. When the door cover is opened, the drive head 101 retracts in the axial direction of the photosensitive drum 3 toward the side wall of the cartridge compartment. Among them, a peripheral gear 1011 is provided on the periphery of the drive head 101, and a first coupling portion is provided at the end of the drive head 101. In this embodiment, the second coupling portion 312 is preferably a coupling protrusion, and the first coupling portion is preferably a coupling recess, and the coupling protrusion and the coupling recess are preferably both roughly triangular prism-shaped.

[0044] When the processing box 100 is installed in the box compartment of the electronic photographic imaging device and the door cover is closed, the drive head 101 moves in the axial direction of the photosensitive drum 3 toward the transmission member 31 of the photosensitive drum 3. When the drive head 101 moves to the guide assembly 4, the guide wheel 41 of the guide assembly 4 contacts the peripheral gear 1011 of the drive head 101 to guide, position and support the drive head 101, so that the drive head 101 can accurately connect its own first coupling part with the second coupling part 312 on the transmission member 31 through the guide wheel 41 and / or the peripheral gear 1011 of the drive head 101 is accurately engaged with the gear assembly 21 of the developing roller to ensure that the drive head 101 stably and reliably drives the photosensitive drum 3 and / or the developing roller to rotate.

[0045] In summary, it can be seen that through the design of the processing box, the driving head of the electronic photographic imaging device can be precisely engaged with the processing box to ensure that the driving head can drive the processing box to operate smoothly and reliably.

[0046] Process cartridge second embodiment

[0047] Reference Figure 6 This embodiment differs from the first embodiment of the process cartridge in the structure of the guide wheel. Specifically, in this embodiment, the wheel body 511 of the guide wheel 51 is truncated cone-shaped, and the diameter of the first end of the wheel body 511 near the gear assembly 52 is larger than the diameter of the end of the wheel body 511 away from the gear assembly 52. ​​By configuring the wheel body 511 in the truncated cone shape, the drive head is better guided during engagement with the process cartridge. The closer the drive head is to the process cartridge, the more accurately the guide wheel 51 guides and positions the drive head. Furthermore, the guide wheel 51 and the peripheral gears of the drive head are in closer contact, providing better support for the drive head while minimizing the impact on the driving force of the drive head.

[0048] Process cartridge third embodiment

[0049] Reference Figure 7The difference between this embodiment and the above embodiments lies in the partial structure of the first end cover 63 and the structure of the guide wheel 62 and the first end cover 63. Specifically, in this embodiment:

[0050] The actuating mechanism is not the two symmetrically arranged side walls 6331 of the chute 633 of the first end cap 63, but rather an elastic member 61, with the two side walls 6331 of the chute 633 being parallel to each other. The elastic member 61 is connected between the first end cap 63 and the guide wheel 62, and is used to force the guide wheel 62 to move outward from the opening. Preferably, the outer side wall 6331 of the first end cap 63 is recessed from the outer surface toward the inner side of the first end cap 63 to form a receiving position 631, with two or more limiting posts 632 disposed within the receiving position 631. The number of limiting posts 632 is the same as the number of guide wheels 62 and chute 633 groups, and one limiting post 632 is provided corresponding to each group of chute 633 groups and each guide wheel 62. The extension direction of the limiting column 632 is parallel to the axial direction of the developing roller. The number of elastic members 61 is equal to the number of limiting columns 632. The elastic member 61 preferably adopts a torsion spring, which is mounted on the limiting column 632, and the first end of the torsion spring is connected to the first end cover 63, and the second end of the torsion spring is connected to the shaft 621 of the guide wheel 62, so that the elastic member 61 can force the guide wheel 62 to be close to the peripheral gear of the drive head to accurately guide and position the peripheral gear.

[0051] Electrophotographic imaging device embodiment

[0052] An electrophotographic imaging device includes a mainframe and a process cartridge, wherein the process cartridge is any one of the first to third embodiments of the process cartridge. A cartridge compartment is provided within the mainframe, and the process cartridge is mounted within the compartment. A door cover is provided at the compartment opening of the cartridge compartment, and a drive head is provided on the sidewalls within the compartment. A peripheral gear is provided on the circumference of the drive head, and an end of the drive head has a first coupling portion. The door cover is connected to the drive head so that when the door cover is closed, the drive head moves axially toward the position of the process cartridge, so that the first coupling portion of the drive head docks with the second coupling portion on the transmission member of the photosensitive drum and / or the peripheral gear of the drive head engages with the gear of the developing roller. When the door cover is opened, the drive head retracts axially toward the sidewalls of the cartridge compartment. During the movement of the drive head toward the process cartridge, a guide wheel of a guide assembly of the process cartridge guides, positions, and supports the drive head, so that the drive head can dock smoothly and accurately with the process cartridge.

[0053] It can be seen that the electronic photographic imaging device provided with the above-mentioned processing box can ensure that when the processing box is installed, the drive head can smoothly and accurately engage with the second coupling part of the transmission part on the photosensitive drum and / or the gear assembly on the developing roller, so that the drive head can stably and reliably drive the photosensitive drum and / or the developing roller to rotate, thereby ensuring the stability and reliability of the operation of the processing box and the electronic photographic imaging device.

[0054] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Processing box, including: Box body; A developing roller, the developing roller being rotatably mounted on the box body and provided with a gear assembly; A photosensitive drum, the photosensitive drum being rotatably mounted on the cartridge body, the photosensitive drum being provided with a transmission member and a photosensitive drum gear, the photosensitive drum gear being engaged with a gear of the gear assembly; Its characteristics are: The processing box also includes a guide assembly. In the axial direction of the photosensitive drum, the guide assembly is located on the side of the transmission member away from the photosensitive drum. The guide assembly includes two or more guide wheels. The guide wheels have a third rotation axis. The guide wheels are rotatably mounted on the box body around the third rotation axis. The two or more guide wheels are distributed along the circumference of the transmission member. The guide wheels are used to be adjacent to the peripheral gears of the drive head in the electronic photographic imaging device.

2. The process cartridge according to claim 1, wherein: The box body is provided with two or more slide groove groups, the slide grooves of one group of the slide groove groups extend toward the peripheral gear along a radial direction of the peripheral gear, and one of the guide wheels is slidably connected to one group of the slide groove groups; The cassette body includes an enabling mechanism that forces the guide wheel to move toward the peripheral gear.

3. The process cartridge according to claim 2, wherein: The box body comprises: a developing frame, wherein the developing roller has a first rotation axis, and the developing roller is rotatably mounted on the developing frame around the first rotation axis; a drum frame, wherein the photosensitive drum has a second rotation axis, and the photosensitive drum is rotatably mounted on the drum frame around the second rotation axis; a first end cover, the first end cover being connected to the first end of the developing frame and the first end of the drum frame respectively, the transmission member being disposed at the first end of the photosensitive drum, the first end cover being provided with an opening near the peripheral gear, the slide groove being formed on the first end cover, and a portion of the guide wheel being able to extend out of the first end cover through the opening; A second end cover is connected to the second end of the developing frame and the second end of the drum frame respectively.

4. The process cartridge according to claim 3, wherein: The enabling mechanism is two symmetrically arranged side walls of the chute, and the two side walls are arranged in a V-shape; In the extension direction of the slide groove, the two side walls have a first spacing at the end close to the opening, and the two side walls have a second spacing at the end away from the opening. The first spacing is greater than the second spacing, and the two side walls cooperate to force the guide wheel to move out of the opening.

5. The process cartridge according to claim 3, wherein: The actuating mechanism includes an elastic member connected between the first end cover and the guide wheel, and the elastic member forces the guide wheel to move out of the opening.

6. The process cartridge according to claim 3, wherein: A support plate is provided inside the first end cover, and the chute group includes two chute groups, one of the two chute groups is formed on the outer wall of the first end cover, and the other of the two chute groups is formed on the support plate; The guide wheel includes a shaft body and a wheel body, the first end of the shaft body is connected to the first slide groove, the second end of the shaft body is connected to the second slide groove, and the wheel body is used to be adjacent to the peripheral gear.

7. The process cartridge according to any one of claims 2 to 6, wherein: The included angle between two adjacent groups of the chute groups is between 10° and 180°.

8. The process cartridge according to any one of claims 3 to 6, wherein: The wheel body of the guide wheel is elastically deformable; When the wheel body is adjacent to the peripheral gear, the wheel body is tangent to the peripheral gear, or a portion of the wheel body is located between the tooth tip circle of the peripheral gear and the tooth root circle of the peripheral gear; In the axial direction, a first distance between an end of the wheel body close to the transmission member and an outer end surface of the first end cover is smaller than a second distance between an end of the transmission member close to the wheel body and the outer end surface.

9. The process cartridge according to claim 8, wherein: The wheel body is in a truncated cone shape, and the diameter of the first end of the wheel body close to the gear assembly is larger than the diameter of the end of the wheel body away from the gear assembly.

10. An electrophotographic imaging device comprising a main body, a cartridge compartment disposed within the main body, a drive head disposed within the cartridge compartment, the drive head having a peripheral gear and a first coupling portion, characterized in that: The processing box as described in any one of claims 1 to 9 is installed in the box compartment, the peripheral gear is adjacent to the guide wheel, the peripheral gear is engaged with the gear assembly and / or the second coupling part of the transmission member is coupled to the first coupling part.

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