CN210323779U - Process cartridge and electrophotographic image forming apparatus - Google Patents
Process cartridge and electrophotographic image forming apparatus Download PDFInfo
- Publication number
- CN210323779U CN210323779U CN201921336827.4U CN201921336827U CN210323779U CN 210323779 U CN210323779 U CN 210323779U CN 201921336827 U CN201921336827 U CN 201921336827U CN 210323779 U CN210323779 U CN 210323779U
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- developing roller
- photosensitive drum
- coupling protrusion
- process cartridge
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 230000008569 process Effects 0.000 title claims abstract description 54
- 230000008878 coupling Effects 0.000 claims abstract description 94
- 238000010168 coupling process Methods 0.000 claims abstract description 94
- 238000005859 coupling reaction Methods 0.000 claims abstract description 94
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 description 24
- 206010070834 Sensitisation Diseases 0.000 description 7
- 230000008313 sensitization Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000011068 loading method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model provides a handle box and electrophotographic image forming apparatus. The processing box comprises a box body, a photosensitive drum and a developing roller, wherein the photosensitive drum and the developing roller are rotatably supported between a first end wall and a second end wall of the box body, a coupling protrusion is arranged at the axial end, close to the first end wall, of the photosensitive drum, a developing roller gear is arranged at the axial end, close to the first end wall, of the developing roller, and the developing roller gear is closer to the first end wall relative to the coupling protrusion in the axial direction of the photosensitive drum. A rotation angle limiting mechanism which rotates around the axis relatively is arranged between the coupling protrusion and the photosensitive drum, and the coupling protrusion can generate a rotation angle relative to the photosensitive drum along the circumferential direction. The process cartridge can avoid damage to the photosensitive drum.
Description
Technical Field
The utility model belongs to the technical field of the electrophotographic formation of image and specifically relates to a processing box that electrophotographic image forming apparatus, detachably install in this electrophotographic image forming apparatus is related to.
Background
A conventional process cartridge includes a photosensitive drum, a coupling protrusion at an axial end of the photosensitive drum, a developing roller, and a developing roller gear at an axial end of the developing roller, and a minimum distance between the coupling protrusion and a drive-end wall of the process cartridge is greater than a minimum distance between the developing roller gear and the drive-end wall of the process cartridge in an axial direction of the process cartridge.
The box cabin of the electronic photographic imaging device is internally provided with a transmission head, and the rotary force driving head is simultaneously meshed with the developing roller gear and the coupling protrusion. When the processing box starts to work in the box bin, the transmission head is meshed with the developing roller gear to rotate, and meanwhile, the dynamic photosensitive drum needs to be driven to rotate.
Disclosure of Invention
The utility model mainly aims at providing a avoid damaging the processing box of sensitization drum.
It is another object of the present invention to provide an electrophotographic image forming apparatus having the above process cartridge.
In order to realize the main object, the utility model provides a processing box includes box body, sensitization drum and developer roll, and sensitization drum and developer roll all rotatably support between the first end wall and the second end wall of box body, and the axial end that the sensitization drum is close to first end wall is provided with the coupling and protrudingly, and the axial end that the developer roll is close to first end wall is provided with the developer roll gear, and in the axial of sensitization drum, the developer roll gear is protruding more to be close to first end wall for the coupling. A rotation angle limiting mechanism which rotates around the axis relatively is arranged between the coupling protrusion and the photosensitive drum, and the coupling protrusion can generate a rotation angle relative to the photosensitive drum along the circumferential direction.
As can be seen from the above solution, since the coupling protrusion can generate a certain rotation angle in the circumferential direction with respect to the photosensitive drum, therefore, when the processing box is arranged in the box chamber of the electronic photographic imaging device, the transmission head in the box chamber drives and is meshed with the developing roller gear and drives the developing roller to rotate along the first direction, the coupling protrusion is driven by the transmission head to rotate along the first direction, the photosensitive drum rotates along the reverse direction of the first direction under the action of the friction force between the photosensitive drum and the developing roller, the friction force between the photosensitive drum and the developing roller is dynamic friction, the friction force is small, and the torque of the developing roller is minimum at this time, when the rotational angle restricting mechanism restricts the position of the coupling projection with respect to the rotational angle of the photosensitive drum, the torque of the developing roller changes from small to large and then becomes small due to the change of the rotation direction of the photosensitive drum, and the torque of the developing roller has a gradual change process, so that the photosensitive layer of the photosensitive drum can be prevented from being damaged due to the rotation of the developing roller.
It is preferable that the coupling protrusion is movable between a retracted position and an extended position in the axial direction of the photosensitive drum.
It follows that when a process cartridge is not mounted in the cartridge magazine, the coupling projection is in the retracted position, and damage to the coupling projection can be avoided when the process cartridge is transported or dropped from a high position.
According to a further scheme, the processing box further comprises a driving assembly, and the driving assembly comprises a base, an end cover, an elastic resetting piece, a push rod and a coupling protrusion. The base and sensitization drum fixed connection, the end cover setting is at the axial end of base, and the base encloses into the holding chamber with the end cover, and elasticity resets and the coupling is protruding to be installed at the holding intracavity, and the push rod runs through the coupling along the axial of sensitization drum and is protruding, and the stress end of push rod stretches out from the protruding input of coupling, and the application of force spare is installed through articulated mode to the application of force end of push rod, and application of force spare adjoins with the protruding output of coupling. The restoring force of the elastic restoring member forces the coupling protrusion to be in the retracted position.
Therefore, when the processing box is installed in the box bin, the push rod moves towards the direction close to the photosensitive drum along the axial direction of the photosensitive drum after being subjected to the acting force of the transmission head, the force application end of the push rod pulls the force application piece, the force application piece rotates around the shaft and applies the acting force to the output end of the coupling protrusion, and the coupling protrusion extends out from the direction far away from the photosensitive drum along the axial direction of the photosensitive drum under the action of the force and is jointed with the coupling concave part of the transmission head.
In addition, when the processing box is taken out from the box bin, after the acting force of the transmission head on the push rod is cancelled, the restoring force of the elastic resetting piece forces the coupling protrusion to retract, meanwhile, the coupling protrusion applies the acting force to the force applying piece, and the force applying piece rotates around the shaft and pushes out the push rod.
Preferably, the output end of the coupling protrusion is provided with at least one pair of transmission rods protruding outwards from the peripheral wall of the output end of the coupling protrusion, the inner peripheral wall of the base is provided with at least one pair of input arms protruding in the radial direction, the transmission rods can be in abutting contact with the input arms in the peripheral direction of the base, and the transmission rods and the input arms are matched to form the rotation angle limiting mechanism.
It can be seen that the dowel bar cooperates with the input arm to limit the rotational angle of the coupling projection relative to the photosensitive drum.
Preferably, the developing roller gear is coupled to the developing roller in an axial direction of the developing roller by an axial clutch.
Therefore, the arrangement of the axial clutch can prevent the transmission belt from driving the developing roller to rotate to cause the leakage of the developer when the processing box is not completely installed in the electronic photographic imaging device.
The axial clutch comprises clutch teeth arranged on the axial end surface of the developing roller gear and the axial end surface of the developing roller, and a clutch driving mechanism.
As can be seen, the developing roller gear is engaged with or disengaged from the clutch teeth on the axial end surface of the developing roller after receiving a force in the axial direction of the developing roller.
The development roller gear is sleeved on the shaft head through the shaft hole, and the development roller gear can move along the extension direction of the shaft head.
The clutch driving mechanism comprises an elastic piece, the elastic piece is sleeved on the shaft head, and the restoring force of the elastic piece forces the developing roller gear to move towards the direction far away from the developing roller along the extending direction of the shaft head.
Therefore, when the transmission head moves away from the processing box after the door cover of the electronic photographic imaging device is opened, the elastic piece is arranged to force the developing roller gear to be separated from the developing roller.
In order to achieve the above-mentioned another object, the present invention provides an electrophotographic image forming apparatus, including a main body, a cartridge magazine is provided in the main body, a driving head is provided on a side wall of the cartridge magazine, the driving head includes a gear portion and a coupling recess, the cartridge magazine is used for placing and taking the above-mentioned process cartridge, a developing roller gear is engaged with the gear portion, and the coupling protrusion is engaged with the coupling recess.
Drawings
Fig. 1 is a structural view of a first embodiment of the process cartridge of the present invention.
Fig. 2 is a schematic view showing a fitting relationship of the coupling projection, the developing roller gear and the driving head in the electrophotographic image forming apparatus according to the first embodiment of the present invention.
Fig. 3 is an exploded view of the driving assembly of the first embodiment of the process cartridge according to the present invention.
Fig. 4 is a sectional view of the driving unit in the first embodiment of the process cartridge of the present invention.
Fig. 5 is an exploded view of the developing roller gear, the axial clutch and the developing roller in the first embodiment of the process cartridge of the present invention.
Fig. 6 is a schematic view showing the rotation direction of the photosensitive drum, the coupling projection, the developing roller, and the developing roller gear in the first embodiment of the process cartridge of the present invention.
Fig. 7 is a schematic view showing the fitting relationship of the driving head, the driving assembly and the developing roller gear in the first state according to the first embodiment of the process cartridge of the present invention.
Fig. 8 is a schematic view showing the fitting relationship of the driving head, the driving assembly and the developing roller gear in the second state according to the first embodiment of the process cartridge of the present invention.
Fig. 9 is a structural view of a second embodiment of the process cartridge of the present invention.
Fig. 10 is a structural view of a developing roller, a developing roller gear, a photosensitive drum and a driving assembly in a second embodiment of the process cartridge of the present invention.
Fig. 11 is a schematic view showing the fitting relationship of the driving head, the driving unit and the developing roller gear in the first state according to the second embodiment of the process cartridge of the present invention.
Fig. 12 is a schematic view showing the fitting relationship of the driving head, the driving unit and the developing roller gear in the second state in the second embodiment of the process cartridge according to the present invention.
The present invention will be further explained with reference to the drawings and examples.
Detailed Description
Process Cartridge and method of mounting Process Cartridge
Referring to fig. 1 and 2, the process cartridge is detachably mounted in an electrophotographic image forming apparatus, the electrophotographic image forming apparatus includes a main body, a cartridge bay is provided in the main body, a door is provided on a bay opening of the cartridge bay, a driving head 10 is provided on a side wall of the cartridge bay, the door is connected to the driving head 10, when the door is closed, the driving head 10 extends toward the inside of the cartridge bay, and when the door is opened, the driving head 10 retracts toward the side wall. The transmission head 10 includes a gear portion 101 and a coupling recess 102, the gear portion 101 being located on a peripheral wall of the transmission head 10, and the coupling recess 102 being located at an axial end of the transmission head 10.
The processing box comprises a box body 1, a photosensitive drum 2 and a developing roller 3, wherein the photosensitive drum 2 and the developing roller 3 are both rotatably supported between a first end wall 11 and a second end wall 12 of the box body 1, a driving component 4 is arranged at the axial end, close to the first end wall 11, of the photosensitive drum 2, a developing roller gear 31 is arranged at the axial end, close to the first end wall 11, of the developing roller 3, and in the axial direction of the photosensitive drum 2, the developing roller gear 31 is closer to the first end wall 11 relative to the driving component 4.
Referring to fig. 3 and 4, the driving assembly 4 includes a base 41, an end cap 42, an elastic restoring member 43, a push rod 44, and a coupling protrusion 40. The base 41 is fixedly connected with the photosensitive drum 2, the end cover 42 is arranged at the axial end of the base 41, the base 41 and the end cover 42 enclose an accommodating cavity 411, the elastic reset piece 43 and the coupling protrusion 40 are arranged in the accommodating cavity 411, the push rod 44 penetrates through the coupling protrusion 40 along the axial direction of the photosensitive drum 2, the force bearing end 441 of the push rod 44 extends out from the input end 401 of the coupling protrusion 40, the force applying end 442 of the push rod 44 is provided with the force applying piece 45 and the force applying piece 46 in a hinged manner, the force applying piece 45 and the force applying piece 46 are both adjacent to the output end 402 of the coupling protrusion 40, and the force applying piece 45 and the force applying piece 46 are arranged in a mirror symmetry mode by taking the central. The end cover 42 is provided with a central hole 421, the input end 401 of the coupling protrusion 40 can extend out of the central hole 421, the input end 401 of the coupling protrusion 40 is roughly triangular prism-shaped, the output end 402 of the coupling protrusion 40 is cylindrical, the central hole 421 is circular column-shaped, the diameter of the central hole 421 is slightly larger than that of the circumscribed circle of the input end 401, and the diameter of the output end 402 is larger than that of the circumscribed circle of the input end 401.
A rotational angle restricting mechanism that rotates relatively around the axis is provided between the coupling projection 40 and the photosensitive drum 2, and the coupling projection 40 can rotate in the circumferential direction relative to the photosensitive drum 2. The output end 402 of the coupling protrusion 40 is provided with at least one pair of transmission rods 403 protruding outward from the peripheral wall of the output end 402 of the coupling protrusion 40, the inner peripheral wall of the base 41 is provided with at least one pair of input arms 412 protruding in the radial direction, the transmission rods 403 and the input arms 412 can be in abutting contact in the circumferential direction of the base 41, and the transmission rods 403 and the input arms 412 cooperate to form the above-mentioned rotation angle limiting mechanism.
The coupling projection 40 is movable between a retracted position and an extended position in the axial direction of the photosensitive drum 2. The coupling protrusion 40 is forced to be in the retracted position by the restoring force of the elastic restoring member 43, the elastic restoring member 43 is a spring, the elastic restoring member 43 is sleeved on the coupling protrusion 40, a first end of the elastic restoring member 43 abuts against the force transmission rod 403 of the coupling protrusion 40, and a second end of the elastic restoring member 43 abuts against the end cap 42.
Referring to fig. 5, the developing roller gear 31 is coupled with the developing roller 3 in the axial direction of the developing roller 3 by the axial clutch 5. The axial clutch 5 includes clutch teeth 51 provided on an axial end surface of the developing roller gear 31, clutch teeth 52 provided on an axial end surface of the developing roller 3, and a clutch drive mechanism. The axial end face of the developing roller 3 is further provided with a shaft head 32, the shaft head 32 extends along the axial direction of the developing roller 3, a shaft hole 311 is formed in the developing roller gear 31, the developing roller gear 31 is sleeved on the shaft head 32 through the shaft hole 311, and the developing roller gear 31 can move along the extending direction of the shaft head 32. A helical gear is provided on the radially outer wall of the developing roller gear 31, and the helical gear meshes with the gear portion 101 of the drive head 10 to transmit the rotational driving force. The clutch driving mechanism comprises an elastic member 53, the elastic member 53 is sleeved on the shaft head 32, and the restoring force of the elastic member 53 forces the developing roller gear 31 to move along the extending direction of the shaft head 32 to the direction away from the developing roller 3.
Referring to fig. 6 to 8, the process cartridge loading method includes the following steps.
First, after the process cartridge is mounted to the cartridge magazine, the gear portion 101 meshes with the developing roller gear 31, at which time the coupling protrusion 40 is separated from the coupling recess 102, and the developing roller gear 31 is disengaged from the developing roller 3.
Then, the door of the electrophotographic image forming apparatus is closed, the driving head 10 moves to the side close to the cartridge body 1, and since the developing roller gear 31 is engaged with the driving head 10 by the helical gear, the driving head 10 drives the developing roller gear 31 to move toward the developing roller 3 side until the clutch teeth 51 of the developing roller gear 31 are engaged with the clutch teeth 52 of the developing roller 3. Meanwhile, the force receiving end 441 of the push rod 44 abuts against the drive head 10, the push rod 44 moves in a direction away from the drive head 10 by a reverse acting force, and the urging member 45 and the urging member 46 rotate about the hinge position and urge the coupling protrusion 40 to move the coupling protrusion 40 toward the drive head 10 side along the axial direction of the photosensitive drum 2 until the coupling protrusion 40 engages with the coupling recess 102.
Then, when the electrophotographic image forming apparatus is started, the driving head 10 rotates to drive the developing roller gear 31 to rotate, and drives the developing roller 3 to rotate in the first direction R. At the same time, the driving head 10 drives the coupling protrusion 40 to rotate in the first direction R.
Then, the photosensitive drum 2 rotates in the reverse direction R' of the first direction R by the frictional force between the photosensitive drum 2 and the developing roller 3.
Then, the photosensitive drum 2 is rotated to a position where the coupling projection 40 is restricted by the rotational angle restricting mechanism with respect to the photosensitive drum 2, that is, a position where the transmission lever 403 abuts against the input arm 412.
Then, the driving head 10 simultaneously rotates the photosensitive drum 2 and the developing roller 3 in the first direction R.
Process Cartridge and method of mounting Process Cartridge
As a description of the second embodiment of the process cartridge and the method of mounting the process cartridge according to the present invention, only the differences from the first embodiment of the method of mounting the process cartridge and the process cartridge will be described below.
Referring to fig. 9 and 10, the developing roller gear 231 is fixed to an axial end of the developing roller 23.
Referring to fig. 11 and 12, the process cartridge loading method includes the following steps.
First, after the process cartridge is mounted to the cartridge magazine, the gear portion 101 is not meshed with the developing roller gear 231, and at this time, the coupling protrusion 240 is separated from the coupling recess 102.
Then, the door cover of the electrophotographic image forming apparatus is closed, the driving head 10 is moved to the side close to the cartridge body, the gear portion 101 is engaged with the developing roller gear 231, and the coupling protrusion 240 is engaged with the coupling recess 102. The step of engaging the coupling protrusion 240 with the coupling recess 102 in this step is the same as that in the first embodiment of the process cartridge, and is not described again.
Then, when the electrophotographic image forming apparatus is started, the driving head 10 rotates to drive the developing roller gear 231 to rotate, and drives the developing roller 23 to rotate in the first direction. At the same time, the driving head 10 drives the coupling protrusion 240 to rotate in the first direction.
Then, the photosensitive drum 22 is rotated in the reverse direction of the first direction by the frictional force between the photosensitive drum 22 and the developing roller 23.
Then, the photosensitive drum 22 rotates to a position where the coupling projection 240 is restricted by the rotational angle restricting mechanism with respect to the photosensitive drum 22.
Then, the head 10 simultaneously rotates the photosensitive drum 22 and the developing roller 23 in the first direction.
Further, the developing roller gear 231 and the gear portion of the gear head 10 may be engaged by a spur gear.
Third embodiment of Process Cartridge
As a third embodiment of the process cartridge and the method of mounting the process cartridge according to the present invention, only the differences from the first embodiment of the method of mounting the process cartridge and the process cartridge will be described below.
The coupling projection of the present embodiment can make only a rotational angle in the circumferential direction with respect to the photosensitive drum, that is, the coupling projection cannot move telescopically in the axial direction with respect to the photosensitive drum.
Further, the shape of the center hole may be triangular, rectangular, or the like, or an irregular shape. The number of force application members can be varied as desired. The elasticity piece that resets also can be the torsional spring, and the one end of torsional spring is connected on the dowel steel, and the other end of torsional spring is connected on the inner wall of end cover. The above changes also enable the object of the present invention to be achieved.
Electrophotographic image forming apparatus embodiments
The electrophotographic image forming apparatus of this embodiment includes a cartridge magazine, the electrophotographic image forming apparatus includes a main machine, the main machine is provided with a cartridge magazine therein, a transmission head is provided on a side wall of the cartridge magazine, the transmission head includes a gear portion and a coupling recess, the cartridge magazine is used for placing and taking the process cartridges in the above-described respective process cartridge embodiments, the developing roller gear is engaged with the gear portion, and the coupling protrusion is engaged with the coupling recess.
As can be seen from the above, since the coupling projection can generate a certain rotation angle in the circumferential direction with respect to the photosensitive drum, after the process cartridge is loaded into the cartridge bay of the electrophotographic image forming apparatus, when the transmission head in the box bin drives and is meshed with the developing roller gear and drives the developing roller to rotate along a first direction, the coupling protrusion is driven by the transmission head to rotate along the first direction, the photosensitive drum rotates along the reverse direction of the first direction under the action of the friction force between the photosensitive drum and the developing roller, the friction force between the photosensitive drum and the developing roller is dynamic friction, the friction force is small, and the torque of the developing roller is minimum at this time, when the rotational angle restricting mechanism restricts the position of the coupling projection with respect to the rotational angle of the photosensitive drum, the torque of the developing roller changes from small to large and then becomes small due to the change of the rotation direction of the photosensitive drum, and the torque of the developing roller has a gradual change process, so that the photosensitive layer of the photosensitive drum can be prevented from being damaged due to the rotation of the developing roller.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, and are not intended to limit the scope of the present invention, as those skilled in the art will appreciate that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended to cover all such modifications, equivalents, and improvements as fall within the true spirit and scope of the invention.
Claims (9)
1. The processing box comprises a box body, a photosensitive drum and a developing roller, wherein the photosensitive drum and the developing roller are rotatably supported between a first end wall and a second end wall of the box body, a coupling protrusion is arranged at the axial end, close to the first end wall, of the photosensitive drum, a developing roller gear is arranged at the axial end, close to the first end wall, of the developing roller, and the developing roller gear is closer to the first end wall relative to the coupling protrusion in the axial direction of the photosensitive drum;
the method is characterized in that:
a rotation angle limiting mechanism which relatively rotates around the axis is arranged between the coupling protrusion and the photosensitive drum;
the coupling protrusion is capable of making a rotational angle in a circumferential direction with respect to the photosensitive drum.
2. A process cartridge according to claim 1, wherein:
the coupling protrusion is movable between a retracted position and an extended position along an axial direction of the photosensitive drum.
3. A process cartridge according to claim 2, wherein:
the processing box also comprises a driving assembly, wherein the driving assembly comprises a base, an end cover, an elastic resetting piece, a push rod and the coupling protrusion;
the base is fixedly connected with the photosensitive drum, and the end cover is arranged at the axial end of the base;
the base and the end cover enclose an accommodating cavity, and the elastic resetting piece and the coupling protrusion are arranged in the accommodating cavity;
the push rod penetrates through the coupling protrusion along the axial direction of the photosensitive drum, the force bearing end of the push rod extends out of the input end of the coupling protrusion, the force applying end of the push rod is provided with a force applying piece in a hinged mode, and the force applying piece is adjacent to the output end of the coupling protrusion;
the restoring force of the elastic restoring member urges the coupling protrusion to the retracted position.
4. A process cartridge according to claim 3, wherein:
the output end of the coupling protrusion is provided with at least one pair of dowel bars protruding outwards from the peripheral wall of the output end of the coupling protrusion, the inner peripheral wall of the base is provided with at least one pair of input arms protruding in the radial direction, the dowel bars can be abutted and contacted with the input arms in the peripheral direction of the base, and the dowel bars and the input arms are matched to form the rotating angle limiting mechanism.
5. A process cartridge according to any one of claims 1 to 4, wherein:
the developing roller gear is coupled with the developing roller in an axial direction of the developing roller by an axial clutch.
6. A process cartridge according to claim 5, wherein:
the axial clutch comprises clutch teeth arranged on the axial end face of the developing roller gear and the axial end face of the developing roller, and a clutch driving mechanism.
7. A process cartridge according to claim 6, wherein:
the axial end face of the developing roller is further provided with a shaft head, a shaft hole is formed in the developing roller gear, the developing roller gear passes through the shaft hole sleeve and is arranged on the shaft head, and the developing roller gear can move along the extending direction of the shaft head.
8. A process cartridge according to claim 7, wherein:
clutch actuating mechanism includes the elastic component, the elastic component cover is established on the spindle nose, the restoring force of elastic component forces the developing roller gear along the extending direction of spindle nose is to keeping away from the direction removal of developing roller.
9. An electrophotographic image forming apparatus comprising a main body, a cartridge magazine provided in the main body, a driving head provided on a side wall of the cartridge magazine, the driving head including a gear portion and a coupling recess portion, characterized in that the cartridge magazine is adapted to place and remove the process cartridge according to any one of claims 1 to 8, the developing roller gear is engaged with the gear portion, and the coupling protrusion is engaged with the coupling recess portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921336827.4U CN210323779U (en) | 2019-08-16 | 2019-08-16 | Process cartridge and electrophotographic image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921336827.4U CN210323779U (en) | 2019-08-16 | 2019-08-16 | Process cartridge and electrophotographic image forming apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210323779U true CN210323779U (en) | 2020-04-14 |
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ID=70130206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921336827.4U Expired - Fee Related CN210323779U (en) | 2019-08-16 | 2019-08-16 | Process cartridge and electrophotographic image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210323779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441999A (en) * | 2019-08-16 | 2019-11-12 | 珠海天威飞马打印耗材有限公司 | Handle box, the installation method of handle box and electrophotographic imaging forming apparatus |
-
2019
- 2019-08-16 CN CN201921336827.4U patent/CN210323779U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441999A (en) * | 2019-08-16 | 2019-11-12 | 珠海天威飞马打印耗材有限公司 | Handle box, the installation method of handle box and electrophotographic imaging forming apparatus |
| CN110441999B (en) * | 2019-08-16 | 2024-02-09 | 珠海天威飞马打印耗材有限公司 | Process cartridge, process cartridge mounting method, and electrophotographic image forming apparatus |
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Granted publication date: 20200414 |