CN220252400U - Process cartridge - Google Patents
Process cartridge Download PDFInfo
- Publication number
- CN220252400U CN220252400U CN202321454210.9U CN202321454210U CN220252400U CN 220252400 U CN220252400 U CN 220252400U CN 202321454210 U CN202321454210 U CN 202321454210U CN 220252400 U CN220252400 U CN 220252400U
- Authority
- CN
- China
- Prior art keywords
- cleaning member
- process cartridge
- developing
- cleaning
- drum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000004140 cleaning Methods 0.000 claims abstract description 106
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000428 dust Substances 0.000 description 21
- 239000000843 powder Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 238000011109 contamination Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Cleaning In Electrography (AREA)
Abstract
The present utility model relates to a process cartridge comprising a casing and a plurality of rotary members rotatably provided in the casing, the process cartridge further comprising a cleaning member assembly abutting against the rotary members, the cleaning member assembly comprising a first cleaning member abutting against circumferential surfaces of both end portions of the rotary members in a left-right direction, the first cleaning member being a sponge or a brush; the utility model uses sponge or other soft non-sheet-shaped body as cleaning component to make the attachments such as paper scraps and residual developer adsorbed, and at the same time can prevent the attachments from overflowing and polluting the surroundings, and the cleaning effect is better.
Description
Technical Field
The present utility model relates to the field of electrophotographic image forming, and more particularly, to a process cartridge detachably mountable to an electrophotographic image forming apparatus.
Background
A known process cartridge is provided with a photosensitive unit, a developing unit, and a rotary member including a developing roller provided in the developing unit, a photosensitive drum provided in the photosensitive unit, a transfer roller opposite to the photosensitive drum, and the like, the developing roller being opposite to the photosensitive drum and configured to supply the toner stored in the developing unit to the photosensitive drum, to develop an electrostatic latent image on the photosensitive drum surface.
After the image formation is completed, the surface of the rotary member is left with the adhering matter such as toner and paper dust, and in order to prevent the rotary member and other components from being contaminated and damaged, the adhering matter such as toner and paper dust remaining on the surface of the rotary member is required to be removed.
Disclosure of Invention
The utility model provides a processing box which aims to solve the technical problem that a sheet-shaped cleaning member is poor in cleaning effect. The specific scheme is as follows:
the process cartridge includes a housing and a plurality of rotary members rotatably provided in the housing, the process cartridge further includes a cleaning member assembly abutting the rotary members, the cleaning member assembly including a first cleaning member abutting a circumferential surface of both end portions of the rotary members in a left-right direction, the first cleaning member being a sponge or a brush.
The process cartridge includes a detachably combined drum assembly including a drum housing and a photosensitive member rotatably disposed in the drum housing, and a developing cartridge including a developing housing for accommodating a developer and a developing member rotatably disposed in the developing housing, the photosensitive member and the developing member being disposed opposite to each other, and the first cleaning member being for abutting with the photosensitive member.
The drum assembly further includes a transfer rotatably disposed in the drum housing, the cleaning member assembly further including a fourth cleaning member for abutting the transfer, at least one of the fourth cleaning member and the first cleaning member being a sponge.
The first cleaning member is disposed on the drum assembly.
The first cleaning member is provided on the developing cartridge.
The drum assembly further comprises a first removing roller and a second removing roller rotatably arranged on the drum shell, the cleaning member assembly further comprises a second cleaning member and a third cleaning member, the second cleaning member and the third cleaning member are respectively used for being abutted with the first removing roller and the second removing roller, and at least one of the second cleaning member and the third cleaning member is sponge.
Any one of the cleaning member assemblies is simultaneously abutted with at least any two of the plurality of rotating members.
The process cartridge further includes a storage portion provided in the developing cartridge, the storage portion being located below the first cleaning member in an up-down direction.
The process cartridge further includes a cantilever coupled to the storage portion, and the first cleaning member is disposed on the cantilever.
The cantilever has elasticity, at least a part of the cantilever is positioned within the outline of the storage part when viewed from the up-down direction, and the cantilever extends obliquely upward from the side wall of the storage part when viewed from the left-right direction.
As described above, the present utility model can prevent the contamination of the surroundings by overflowing the storage portion for storing the adhering substances by using the non-sheet-like body, which is capable of adsorbing and softening, such as a sponge, as the cleaning member, and can simplify the structure of the process cartridge by removing the storage portion by using the non-sheet-like body, which is capable of directly adsorbing the adhering substances, such as a paper dust and a residual developer, such as a sponge, as the cleaning member.
Drawings
Fig. 1 is a cross-sectional view of a conventional process cartridge as viewed in the left-right direction.
Fig. 2 is a perspective view of a prior art drum assembly.
Fig. 3 is a sectional view of a part of the components of the conventional process cartridge as seen in the left-right direction.
Fig. 4 is a cross-sectional view of a part of the components of the process cartridge according to the first embodiment of the present utility model, as viewed in the left-right direction.
Fig. 5 is a cross-sectional view of a part of the components of the process cartridge according to the second embodiment of the present utility model, as viewed in the left-right direction.
Fig. 6 is a cross-sectional view of a part of the components of the process cartridge according to the third embodiment of the present utility model, as viewed in the left-right direction.
Fig. 7A is a schematic view of a storage section in a process cartridge according to a fourth embodiment of the present utility model as viewed in the up-down direction.
Fig. 7B is a schematic view of a storage section in a process cartridge according to a fourth embodiment of the present utility model as viewed in the left-right direction.
Detailed Description
Fig. 1 is a sectional view of a conventional process cartridge as viewed in the left-right direction; FIG. 2 is a perspective view of a prior art drum assembly; fig. 3 is a sectional view of a part of the components of the conventional process cartridge as seen in the left-right direction.
For more accurate description, the present utility model defines the longitudinal/axial direction of the drum assembly 6 as the left-right direction, the width/lateral direction of the drum assembly 6 as the front-rear direction, and the height direction of the drum assembly 6 as the up-down direction, based on the state shown in fig. 1 to 3, and further, the front-rear direction, the left-right direction, and the up-down direction intersect with each other, preferably, the front-rear direction, the left-right direction, and the up-down direction are perpendicular to each other. The direction of the developing cartridge 7 coincides with the direction definition of the drum assembly 6.
As shown in fig. 1 and 2, the process cartridge 5 includes a detachably combined drum assembly 6 and developing cartridge 7, the drum assembly 6 includes a drum housing 610, a photosensitive member 61 rotatably provided in the drum housing 610, and a transfer member 63 rotatably provided in the drum housing 610, the transfer member 63 being for transferring an electrostatic latent image formed on a surface of the photosensitive member 61 onto an image forming medium (e.g., paper), the drum housing 610 having left and right side walls 611 and 612 at left and right ends, the left and right side walls 611 and 612 being for supporting the photosensitive member 61 and the transfer member 63.
The developing cartridge 7 includes a developing housing 700, a developing member 71 rotatably provided in the developing housing 700, and a powder feeding member 72 rotatably provided in the developing housing 700, a containing portion 74 for containing the developer 11 is provided in the developing housing 700, a first stirring member 75a and a second stirring member 75b for stirring the developer 11 are provided in the containing portion 74, the first stirring member 75a and the second stirring member 75b are also used for supplying the developer 11 to the powder feeding member 72, the developing cartridge 7 further includes a powder discharging blade 73 in contact with the developing member 71 for controlling the thickness of the developer on the surface of the developing member 71; the powder feeding member 72 is in contact with the developing member 71 to supply the developer 11 to the developing member 71, the developing member 71 being adapted to oppose the photosensitive member 61 to supply the developer 11 to the photosensitive member 61 so that an electrostatic latent image on the surface of the photosensitive member 61 is developed; the developing cartridge 7 further includes a grip 701 combined with the developing housing 700, and the drum assembly 6 further includes a grip 617 combined with the drum housing 610, the grip 701 and the grip 617 being for facilitating grasping by a user.
As shown in fig. 4, the rotation direction of the developing member 71 is M1, and the rotation direction of the photosensitive member 61 is M2.
As shown in fig. 1 to 3, the drum assembly 6 further includes a paper dust removing device 110, the paper dust removing device 110 having a frame 170, a first removing roller 120, a second removing roller 130, an elastic member 140, and a first abutment member 160, the first removing roller 120 being for removing paper dust and residual developer adhering to the surface of the photosensitive drum 61, the second removing roller 130 being for removing paper dust and residual developer adhering to the surface of the first removing roller 120, the first abutment member 160 having a supporting portion 161 supported by the frame 170 and an abutment portion 162 abutting against the surface of the photosensitive drum 61, the first abutment member 160 being for further removing attachments such as paper dust, residual developer adhering to the surface of the photosensitive drum 61 after the first removing roller 120 in a rotational direction M2 of the photosensitive member 61.
The drum assembly 6 has second abutment members 180a, 180b abutting against the surface of the photosensitive drum 61, the second abutment members 180a, 180b being of a sheet-like structure, being located at both ends in the axial direction of the photosensitive drum 61, respectively, the second abutment members 180a, 180b serving as first cleaning means 180 for removing the paper dust and the adhering matter such as the residual developer pressed to both ends by the first abutment member 160, so as to prevent the adhering matter such as the paper dust and the residual developer from contaminating other members. Further, the drum assembly 6 further has first storage portions 613a, 613b located below the second abutment members 180a, 180b, respectively, to store removed paper dust, residual developer, and other attachments. The developing cartridge 7 is further provided with second storage portions 702a and 702b for storing paper dust removed by the second contact members 180a and 180b and attachments such as residual developer, respectively.
From the foregoing, it can be appreciated that: the process cartridge 5 includes a casing including a drum casing 610 and a developing casing 700, and a plurality of rotary members rotatably provided in the casing, including at least one of the photosensitive member 61, the transfer member 63, the developing member 71, the powder feeder 72, the first removal roller 120, the second removal roller 130, and the like.
[ embodiment one ]
Fig. 4 is a cross-sectional view of a part of the components of the process cartridge according to the first embodiment of the present utility model, as viewed in the left-right direction.
The same components as those of the conventional process cartridge 5 are given the same numbers in the present utility model, and thus will not be described in detail in this embodiment and the embodiments described below.
As shown in fig. 4, the process cartridge 5 includes a first cleaning member 180, a second cleaning member 121, and a third cleaning member 131 provided therein, wherein the second cleaning member 121 and the third cleaning member 131 are of a sheet structure, the second cleaning member 121 and the third cleaning member 131 are provided on a frame 170, further, the second cleaning member 121 abuts against the first removing roller 120, the third cleaning member 131 abuts against the second removing roller 130, and the second cleaning member 121 and the third cleaning member 131 are for further removing attachments such as paper dust and residual developer to avoid accumulation of attachments such as paper dust and residual developer on the surfaces of the first removing roller 120 and the second removing roller 130, thereby weakening the cleaning effect. Further, the first cleaning member 180 is in contact with the circumferential surfaces of both end portions of the photosensitive element 61 in the axial direction/the left-right direction, and the first cleaning member 180 is of a non-sheet-like structure, for example, a sponge, felt, brush, or the like, and preferably the first cleaning member 180 is a sponge having a plurality of suction holes for sucking the excessive paper dust, the residual developer, or the like to take on the function of storing the paper dust, the residual developer, or the like, so that it is unnecessary to provide a special storage portion, the structure of the process cartridge 5 can be simplified, and on the other hand, the sponge is relatively soft, and the paper dust, the residual developer, or the like can be scraped to the second storage portion 702a plurality of times, and at the same time, the surface of the photosensitive element 61 can be prevented from being worn out, so that the service life of the photosensitive element 61 can be further prolonged.
Further, the first cleaning member 180 is provided in the drum assembly 6, and it is preferable that the first cleaning member 180 is combined with the drum housing 610, and the first cleaning member 180 is located above the second storage portion 702 in the up-down direction, so that the attachments such as paper dust, residual developer, etc. can be directly dropped into the second storage portion 702 to avoid the attachments such as paper dust, residual developer, etc. from contaminating other components.
[ example two ]
Fig. 5 is a cross-sectional view of a part of the components of the process cartridge according to the second embodiment of the present utility model, as viewed in the left-right direction.
As shown in fig. 5, unlike the first embodiment, the first cleaning member 280 in the present embodiment is provided in the developing cartridge 7, and preferably, the first cleaning member 180 is combined with the developing housing 700, and the first cleaning member 180 is located above the second storage portion 702 in the up-down direction.
[ example III ]
Fig. 6 is a cross-sectional view of a part of the components of the process cartridge according to the third embodiment of the present utility model, as viewed in the left-right direction.
As shown in fig. 6, the first cleaning member 280 in this embodiment is identical in structure to the first cleaning member 180 in the second embodiment, and is different from the first and second embodiments in that at least one of the second cleaning member 121 'and the third cleaning member 131' is of a non-sheet structure, for example, a sponge or felt or brush, etc., preferably at least one of the second cleaning member 121 'and the third cleaning member 131' is a sponge, and at the same time, the fourth cleaning member 631 is also provided in the rotation direction of the transfer member 63, at least one of the first cleaning member 280 and the fourth cleaning member 631 is of a non-sheet structure, for example, a sponge or felt or brush, etc., preferably at least one of the first cleaning member 280 and the fourth cleaning member 631 is a sponge, so that it is unnecessary to provide a special storage portion, and the structure of the process cartridge 5 can be simplified, and at the same time, a plurality of rotation members including the photosensitive member 61, the transfer member 63, the developing member 71, the first removal roller 120 and the second removal roller 130 are each provided with a cleaning member correspondingly, and the cleaning member 280 and the like can be further prevented from being damaged by the rotation of the developing member, the image-forming member from being damaged by the non-sheet, and the image-forming defect can be prevented.
Further, one cleaning member may be provided to simultaneously clean any two or more of the rotating members, for example, one cleaning member simultaneously cleans the photosensitive member 61 and the developing member 71, or simultaneously cleans the photosensitive member 61 and the transfer member 63, or simultaneously cleans the photosensitive member 61, the transfer member 63 and the developing member 71, or other combinations, etc., so that the number of cleaning members can be reduced to reduce the degree of crowding of the internal space of the process cartridge 5, so that the respective components inside the process cartridge 5 are reasonably arranged.
[ example IV ]
Fig. 7A is a schematic view of a storage section in a process cartridge according to a fourth embodiment of the present utility model as viewed in the up-down direction; fig. 7B is a schematic view of a storage section in a process cartridge according to a fourth embodiment of the present utility model as viewed in the left-right direction.
As shown in fig. 7A and 7B, the cantilever 7021 extends from the side wall of the second storage portion 702, specifically, the cantilever 7021 may extend in the front-rear direction or the left-right direction from the side wall, at least a portion of the cantilever 7021 is located within the outline of the second storage portion 702 as viewed in the up-down direction, the cantilever 7021 has elasticity and is deformable in the up-down direction, the first cleaning member 280 is provided on the cantilever 7021, preferably, the cantilever 7021 extends obliquely upward as viewed in the left-right direction, and when the first cleaning member 280 abuts against the photosensitive member 61, a force is applied to the cantilever 7021 to elastically deform the cantilever 7021, and thus the cantilever 7021 has an elastic restoring force.
The first cleaning member 280 is abutted with the photosensitive element 61 through the cantilever 7021 which can be elastically deformed, on one hand, when the first cleaning member 280 is abutted with the photosensitive element 61 for a period of time, the elasticity of the first cleaning member 280 is weakened, and at the moment, the elastic restoring force of the cantilever 7021 can enable the first cleaning member 280 to approach the photosensitive element 61 so as to keep the abutting force between the first cleaning member 280 and the photosensitive element 61, thereby keeping a good cleaning effect and prolonging the service life of the first cleaning member 280; on the other hand, when the attachments such as paper dust and residual developer are cleaned, the attachments fall onto the cantilever 7021, and at least a part of the cantilever 7021 is positioned within the outline of the second storage portion 702, and the attachments can directly fall onto the second storage portion 702, so that the attachments do not contaminate other components, and the cleaning effect can be improved.
At least one of the first cleaning member, the second cleaning member, the third cleaning member, and the fourth cleaning member, which are referred to in the above-described embodiments, is formed as a part of a cleaning member assembly for abutting with the circumferential surfaces of both end portions of the rotating member in the left-right direction.
As described above, the present utility model can prevent the contamination of the surroundings by overflowing the storage portion for storing the adhering substances by using the non-sheet-like body, which is capable of adsorbing and softening, such as a sponge, as the cleaning member, and can simplify the structure of the process cartridge by removing the storage portion by using the non-sheet-like body, which is capable of directly adsorbing the adhering substances, such as a paper dust and a residual developer, such as a sponge, as the cleaning member.
Claims (10)
1. A process cartridge including a casing and a plurality of rotary members rotatably provided in the casing, the process cartridge further including a cleaning member assembly abutting the rotary members, the cleaning member assembly including a first cleaning member abutting a circumferential surface of both end portions of the rotary members in a left-right direction, characterized in that,
the first cleaning member is a sponge or a brush.
2. A process cartridge according to claim 1, wherein said process cartridge includes a detachably combined drum assembly including a drum housing and a photosensitive member rotatably provided in the drum housing, and a developing cartridge including a developing housing for accommodating a developer and a developing member rotatably provided in the developing housing, said photosensitive member and developing member being arranged opposite to each other, said first cleaning member being for abutting against the photosensitive member.
3. A process cartridge according to claim 2, wherein said drum assembly further comprises a transfer rotatably provided in the drum housing, said cleaning member assembly further comprising a fourth cleaning member for abutting the transfer, at least one of said fourth cleaning member and said first cleaning member being a sponge.
4. A process cartridge according to claim 2, wherein said first cleaning member is provided on a drum assembly.
5. A process cartridge according to claim 2, wherein said first cleaning member is provided on the developing cartridge.
6. A process cartridge according to any one of claims 2-5, wherein said drum assembly further comprises a first removing roller and a second removing roller rotatably provided to the drum housing, said cleaning member assembly further comprising a second cleaning member and a third cleaning member for abutting the first removing roller and the second removing roller, respectively, at least one of said second cleaning member and third cleaning member being a sponge.
7. A process cartridge according to claim 6, wherein any one of said cleaning members of said cleaning member assembly is simultaneously abutted with at least any two of the plurality of rotary members.
8. A process cartridge according to claim 7, further comprising a storage portion provided in the developing cartridge, said storage portion being located below the first cleaning member in the up-down direction.
9. The process cartridge according to claim 8, further comprising a cantilever coupled to the storage portion, wherein the first cleaning member is provided on the cantilever.
10. A process cartridge according to claim 9, wherein said cantilever has elasticity, at least a part of which is located within a contour of the storing section as viewed from the up-down direction, and extends obliquely upward from a side wall of the storing section as viewed from the left-right direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321454210.9U CN220252400U (en) | 2023-06-08 | 2023-06-08 | Process cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321454210.9U CN220252400U (en) | 2023-06-08 | 2023-06-08 | Process cartridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220252400U true CN220252400U (en) | 2023-12-26 |
Family
ID=89235171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321454210.9U Active CN220252400U (en) | 2023-06-08 | 2023-06-08 | Process cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220252400U (en) |
-
2023
- 2023-06-08 CN CN202321454210.9U patent/CN220252400U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |