CN108614404B - Process cartridge - Google Patents
Process cartridge Download PDFInfo
- Publication number
- CN108614404B CN108614404B CN201810847635.3A CN201810847635A CN108614404B CN 108614404 B CN108614404 B CN 108614404B CN 201810847635 A CN201810847635 A CN 201810847635A CN 108614404 B CN108614404 B CN 108614404B
- Authority
- CN
- China
- Prior art keywords
- gear
- developing roller
- process cartridge
- force receiving
- axis
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 50
- 230000008569 process Effects 0.000 title claims description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 210000000078 claw Anatomy 0.000 claims abstract description 8
- 238000007639 printing Methods 0.000 abstract description 5
- 239000000843 powder Substances 0.000 description 6
- 238000013459 approach Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1839—Means for handling the process cartridge in the apparatus body
- G03G21/1857—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1839—Means for handling the process cartridge in the apparatus body
- G03G21/1842—Means for handling the process cartridge in the apparatus body for guiding and mounting the process cartridge, positioning, alignment, locks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrophotography Configuration And Component (AREA)
Abstract
The invention provides a processing box, which comprises a box body, a photosensitive drum, a developing roller, a driving force receiving head and a control mechanism, wherein the photosensitive drum can be rotatably supported between two end walls of the box body around a rotation axis, the developing roller can be rotatably supported between two end walls of the box body around the axis of the developing roller, the control mechanism can control the driving force receiving head to reciprocate in the direction vertical to the axis of the developing roller, one shaft end of the photosensitive drum is connected with a drum gear, one shaft end of the developing roller is connected with a transmission gear, the transmission gear is provided with a primary gear and a secondary gear side by side along the axial direction of the developing roller, the secondary gear is meshed with the drum gear, the driving force receiving head is provided with a driving gear and an end part, the driving gear can be meshed with the primary gear, the end part is outwards extended and provided with two convex claws, and the two convex claws can be meshed with the transmission head of a printer. The driving force receiving head and the drum gear of the photosensitive drum are of split type structures, the processing box can smoothly fall down and be detached from the host, and the printing performance is stable.
Description
Technical Field
The invention relates to the technical field of printing consumables, in particular to a processing box.
Background
An electrophotographic image forming apparatus such as a laser printer is an apparatus that forms an image on an image forming medium such as paper by using an electrophotographic principle at least through the processes of charging, exposing, developing, transferring, fixing, and cleaning. The readily consumable materials used on imaging devices are known as printing consumables. In general, toner consumed for development is generally supplied from a process cartridge, and when the toner in the process cartridge is exhausted, the process cartridge is replaced with a new one.
The existing process cartridge generally comprises a powder bin, a driving component, a developing roller, a powder discharging knife, a transmission gear, a conductive end on an end cover of the process cartridge, a conductive contact on the conductive end and a developing assembly comprising a waste powder bin and a photosensitive drum, wherein the driving component, the developing roller, the powder discharging knife and the transmission gear are arranged on the powder bin and matched with the developing unit. The process cartridge is placed in the image forming apparatus, and a driving member of the process cartridge is rotated with a transmission member of the image forming apparatus by coupling with the transmission member of the image forming apparatus, thereby effecting a circumferential rotational movement of a developing unit in the process cartridge. The conductive contact of the conductive end of the processing box is contacted with the conductive position on the imaging device, so that the developing component in the processing box is provided with positive voltage or negative voltage according to the structural characteristics, and the toner in the toner bin supplies powder to the photosensitive drum under the action of the electric field force of the developing roller and other components, thereby developing the photosensitive drum, and then transferring the toner to paper through transfer printing. When the toner in the process cartridge is exhausted, the process cartridge needs to be detached from the image forming apparatus.
The driving component of the existing processing box adopts a driving connection structure of a ball type universal joint, and in the transportation process, a driving component is easy to separate, so that a photosensitive drum or a developing roller cannot receive a driving force, and the processing box cannot be normally used.
In addition, there is a process cartridge in which a driving rod in a driving assembly passes through a gear positioning assembly for positioning driving and can axially reciprocate relative to a gear, and in the process of mounting and dismounting the process cartridge, the driving assembly is easy to be blocked with a driving head of an image forming apparatus, so that the driving assembly is damaged, and the process cartridge cannot work normally.
Disclosure of Invention
In order to achieve the main object of the present invention, the present invention provides a process cartridge, which aims to improve the smoothness of the process cartridge in the processes of dropping and detaching from a main body.
In order to achieve the main object of the present invention, there is provided a process cartridge comprising a cartridge body, a photosensitive drum rotatably supported between both end walls of the cartridge body about a rotation axis, a developing roller rotatably supported between both end walls of the cartridge body about an axis thereof, and a control mechanism for controlling the driving force receiving head to reciprocate in a direction perpendicular to the axis of the developing roller, one shaft end of the photosensitive drum being connected with a drum gear, one shaft end of the developing roller being connected with a transmission gear, the transmission gear being provided with a primary gear and a secondary gear side by side in an axial direction of the developing roller, the secondary gear being engaged with the drum gear, the driving force receiving head having a driving gear and an end portion, the driving gear being engageable with the primary gear, the end portion being provided with two pawls extending outward, the two pawls being engageable with the transmission head of a printer.
Therefore, the driving force receiving head and the drum gear of the photosensitive drum are of a split structure, the transmission gear of the developing roller is provided with the primary gear and the secondary gear side by side along the axial direction of the developing roller, the secondary gear is meshed with the drum gear, the control mechanism controls the driving force receiving head to reciprocate in the axial direction perpendicular to the developing roller, so that the driving gear is meshed with or separated from the primary gear, the processing box can smoothly fall on and be detached from the host, the two convex claws of the driving force receiving head are stably meshed with the transmission head of the printer, printing is more stable, compatibility of the processing box is improved, and cost performance is higher.
In a further scheme, the driving gear and the primary gear are spur gears.
In a further scheme, the drum gear and the secondary gear are helical gears.
In a further embodiment, the drive gear and the end are connected by a shaft, and the two prongs form a central symmetry about the axis of the shaft.
Further, the control mechanism has a push lever which can control the lever portion to reciprocate in a direction perpendicular to the axis of the developing roller, and a return elastic member which forces the push lever to approach the primary gear.
Still further, the spacing hole has been seted up to the one end of catch bar, and the pole portion passes spacing hole setting.
Still further, the process cartridge further includes an end cap mounted on a side surface of the cartridge body with the end cap and the driving force receiving head being located at the same end surface, and the reset elastic member is pressed between the push rod and the end cap.
Still further, the end cap is provided with a spacing assembly for the push rod to pass through, and the spacing assembly forces the push rod to reciprocate in a direction perpendicular to the axis of the developing roller.
Still further, the lever portion and the drive gear are coaxially disposed.
Further, the driving force receiving head reciprocates on an extension line where the axis of the photosensitive drum and the axis of the developing roller are located.
Drawings
Fig. 1 is a block diagram of an embodiment of a process cartridge of the present invention.
Fig. 2 is a partial structural view of an embodiment of the process cartridge of the present invention.
Fig. 3 is an exploded view of the end cap, push rod and return spring of the cartridge of the present invention.
Fig. 4 is a block diagram showing the cooperation of the photosensitive drum, the developing roller, and the driving force receiving head in the process cartridge embodiment of the present invention.
Fig. 5 is an exploded view of the configuration of the photosensitive drum, the developing roller, and the driving force receiving head in cooperation in the process cartridge embodiment of the present invention.
Fig. 6 is a partial structural view of the process cartridge embodiment of the present invention in the first use state.
Fig. 7 is a partial structural view of the process cartridge embodiment of the present invention in the second use state.
Fig. 8 is a partial structural view of the process cartridge embodiment of the present invention in a third use state.
The invention is further described below with reference to the drawings and examples.
Detailed Description
Referring to fig. 1 to 3, the process cartridge 1 includes a cartridge body 2, a photosensitive drum 6, an end cap 4, a developing roller 8, a driving force receiving head 3, and a control mechanism, the photosensitive drum 6 being rotatably supported about a rotation axis between both end walls of the cartridge body 2, the developing roller 8 being rotatably supported about an axis thereof between both end walls of the cartridge body 2, the control mechanism being operable to control the driving force receiving head 3 to reciprocate in a direction perpendicular to the axis of the developing roller 8.
One shaft end of the photosensitive drum 6 is coaxially connected with a drum gear 7, one shaft end of the developing roller 8 is coaxially connected with a transmission gear 9, the transmission gear 9 is coaxially provided with a primary gear 91 and a secondary gear 92 side by side in the axial direction of the developing roller 8, and the secondary gear 92 is meshed with the drum gear 7. The driving force receiving head 3 has a driving gear 31 and an end portion 32, the driving gear 31 being engageable with the primary gear 91, the end portion 32 being provided with two pawls 33 protruding outward, the two pawls 33 being engageable with a transmission head of the printer. In this embodiment, the driving gear 31 and the primary gear 91 are spur gears, the number of teeth of the driving gear 31 is larger than that of the primary gear 91, the drum gear 7 and the secondary gear 92 are helical gears, and the number of teeth of the drum gear 7 is larger than that of the secondary gear 92.
Referring to fig. 3 to 5, the driving gear 91 and the end 32 are connected by a lever 34, and the two pawls 33 are formed to be central symmetry about the axis of the lever 34, and the lever 34 and the driving gear 31 are coaxially disposed in this embodiment. The control mechanism has a push rod 5 and a return elastic member 10, one end of the push rod 5 is provided with a limit hole 53, and the rod portion 34 is disposed through the limit hole 53, so that the push rod 5 can control the rod portion 34 to reciprocate in a direction perpendicular to the axis of the developing roller 8, and the return elastic member 10 forces one end of the push rod 5 to approach the primary gear 91.
Referring to fig. 3, the end cap 4 is mounted on the side of the casing 2 at the same end face as the driving force receiving head 3, a guide groove 41 extending in the direction perpendicular to the axis of the developing roller 8 is provided on the side wall of the end cap 4, and the return elastic member 10 is located in the guide groove 41, and the return elastic member 10 of this embodiment is a return spring. The push rod 5 is provided with a stopper plate 51 protruding toward the side of the guide groove 41, and the return elastic member 10 is pressed between the stopper plate 51 and the end face of the guide groove 41, and the return elastic member 10 forces one end of the push rod 5 to approach the primary gear 91. The end cover 4 is also provided with a limiting component for the push rod 5 to pass through, and the limiting component forces the push rod 5 to reciprocate in the direction vertical to the axis of the developing roller 8. Specifically, the limiting component is formed by two limiting blocks 42 with an L shape, and the two limiting blocks 42 are oppositely staggered on two side surfaces of the guide groove 41 and protrude out of the side wall of the end cover 4. The moving path formed by the two limiting blocks 42 in this embodiment passes through the axis of the photosensitive drum 6 and the axis of the developing roller 8, that is, the push rod 5 can control the driving force receiving head 3 to reciprocate on the extending line where the axis of the photosensitive drum 6 and the axis of the developing roller 8 are located.
Referring to fig. 6 to 8, the driving head 11 of the printer is retractable in its axial direction, when the process cartridge 1 is required to be placed inside the printer, the user places the process cartridge 1 inside the printer while pressing the force receiving portion 52 of the push lever 5, and the limit hole 53 at one end of the push lever 5 drives the driving force receiving head 3 to move away from the primary gear 91 in a direction perpendicular to the axis of the developing roller 8, so that the driving gear 31 of the driving force receiving head 3 is disengaged from the primary gear 91, and the two pawls 33 of the driving force receiving head 3 can smoothly engage with the driving head 11 of the printer, and the reset elastic member 10 is in a compressed state. Then, the process cartridge 1 is continuously pushed into the printer, the pressing force of the force receiving portion 52 of the push rod 5 is cancelled, the limit hole 53 at one end of the push rod 5 drives the driving force receiving head 3 to move close to the primary gear 91 in the direction perpendicular to the axis of the developing roller 8 under the action of the resilience force of the reset elastic member 10, and finally the driving gear 31 of the driving force receiving head 3 is stably meshed with the primary gear 91, so that the developing roller 8 is driven to rotate around the axis thereof, and meanwhile, the photosensitive drum 6 is driven to rotate around the rotation axis through the stable meshing of the secondary gear 92 and the drum gear 7, so that the driving force receiving head 3 is in running fit with the transmission head 11 of the printer. Therefore, the process cartridge 1 is not blocked and interfered by certain parts in the falling process, and the process cartridge is more smoothly matched with the transmission head 11 of the printer.
When the toner in the process cartridge 1 is printed, the process cartridge 1 needs to be taken out from the printer, the process cartridge 1 is pulled outwards, and the force receiving portion 52 of the push rod 5 is pressed, the limit hole 53 at one end of the push rod 5 drives the driving force receiving head 3 to move away from the primary gear 91 in the axial direction perpendicular to the developing roller 8, so that the driving gear 31 of the driving force receiving head 3 is disengaged from the primary gear 91, and the two convex claws 33 of the driving force receiving head 3 and the transmission head 11 of the printer can smoothly realize disengagement contact, so that the process cartridge 1 can be taken out smoothly.
The driving force receiving head 3 and the drum gear 7 of the photosensitive drum 6 are of a split structure, the transmission gear 9 of the developing roller 8 is provided with a primary gear 91 and a secondary gear 92 side by side along the axial direction of the developing roller 8, the secondary gear 92 is meshed with the drum gear 7, the driving force receiving head 3 is controlled by the control mechanism to reciprocate in the axial direction vertical to the developing roller 8, so that the driving gear 31 is meshed with or separated from the primary gear 91, the processing box 1 can smoothly fall on and be detached from a host, the two convex claws 33 of the driving force receiving head 3 are stably meshed with the transmission head 11 of the printer, printing is more stable, compatibility of the processing box 1 is improved, and cost performance is higher.
The above embodiments are only preferred examples of the present invention and are not intended to limit the scope of the present invention, so that all equivalent changes or modifications made according to the construction, characteristics and principles of the present invention shall be included in the scope of the present invention.
Claims (10)
1. The processing box comprises a box body, a photosensitive drum, a developing roller and a driving force receiving head, wherein the photosensitive drum is rotatably supported between two end walls of the box body around a rotation axis, and the developing roller is rotatably supported between two end walls of the box body around the axis of the developing roller, and is characterized in that:
one shaft end of the photosensitive drum is connected with a drum gear, one shaft end of the developing roller is connected with a transmission gear, a primary gear and a secondary gear are arranged side by side along the axial direction of the developing roller, and the secondary gear is meshed with the drum gear;
the driving force receiving head is provided with a driving gear and an end part, the driving gear can be meshed with the primary gear, two convex claws are arranged on the end part in an outward extending mode, and the two convex claws can be meshed with a transmission head of the printer;
the driving force receiving head and the drum gear are of a split structure, the processing box further comprises a control mechanism, and the control mechanism can control the driving force receiving head to reciprocate in the direction perpendicular to the axis of the developing roller so as to control the driving gear to be meshed with or disengaged from the primary gear.
2. A process cartridge according to claim 1, wherein:
the driving gear and the primary gear are spur gears.
3. A process cartridge according to claim 1, wherein:
the drum gear and the secondary gear are helical gears.
4. A process cartridge according to claim 1, wherein:
the driving gear and the end part are connected through a rod part, and the two convex claws are formed to be central symmetry with respect to the axis of the rod part.
5. A process cartridge according to claim 4, wherein:
the control mechanism is provided with a push rod and a reset elastic piece, the push rod can control the rod part to reciprocate in the direction perpendicular to the axis of the developing roller, and the reset elastic piece forces the push rod to be close to the primary gear.
6. A process cartridge according to claim 5, wherein:
and one end of the pushing rod is provided with a limiting hole, and the rod part penetrates through the limiting hole.
7. A process cartridge according to claim 6, wherein:
the processing box further comprises an end cover, the end cover and the driving force receiving head are arranged on the side face of the box body in the same end face, and the reset elastic piece is propped between the pushing rod and the end cover.
8. A process cartridge according to claim 7, wherein:
the end cover is provided with a limiting component for the push rod to pass through, and the limiting component forces the push rod to reciprocate in the direction vertical to the axis of the developing roller.
9. A process cartridge according to claim 8, wherein:
the lever portion and the drive gear are coaxially disposed.
10. A process cartridge according to any one of claims 1 to 9, wherein:
the driving force receiving head reciprocates on an extension line where the axis of the photosensitive drum and the axis of the developing roller are located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810847635.3A CN108614404B (en) | 2018-07-27 | 2018-07-27 | Process cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810847635.3A CN108614404B (en) | 2018-07-27 | 2018-07-27 | Process cartridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108614404A CN108614404A (en) | 2018-10-02 |
| CN108614404B true CN108614404B (en) | 2024-04-05 |
Family
ID=63666896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810847635.3A Active CN108614404B (en) | 2018-07-27 | 2018-07-27 | Process cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108614404B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120044773A (en) | 2019-03-18 | 2025-05-27 | 佳能株式会社 | Electrophotographic image forming apparatus, cartridge, and drum unit |
| 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 |
| CN110568743B (en) * | 2019-09-24 | 2024-07-05 | 珠海市汇威精密制造有限公司 | Driving force receiving part and processing box |
| CN115509105B (en) * | 2020-11-12 | 2025-04-29 | 纳思达股份有限公司 | Processing box |
| CN116149156B (en) * | 2023-03-07 | 2025-12-05 | 珠海天威飞马打印耗材有限公司 | A processing box |
| CN119247718B (en) * | 2024-11-15 | 2025-09-19 | 珠海市汇威精密制造有限公司 | Counting gear assembly and processing box |
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| CN207096695U (en) * | 2017-08-07 | 2018-03-13 | 珠海天威飞马打印耗材有限公司 | Handle box |
| CN108121187A (en) * | 2018-01-26 | 2018-06-05 | 珠海天威飞马打印耗材有限公司 | Handle box and electrophotographic image forming |
| CN208477303U (en) * | 2018-07-27 | 2019-02-05 | 珠海天威飞马打印耗材有限公司 | Handle box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3029527B1 (en) * | 2013-09-29 | 2017-08-09 | Ninestar Corporation | Rotational force drive assembly and processing box |
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| JPH07257776A (en) * | 1994-03-23 | 1995-10-09 | Canon Inc | Drive transmission device and image forming apparatus |
| JP2000000954A (en) * | 1998-06-16 | 2000-01-07 | Mitsubishi Heavy Ind Ltd | Axial direction register adjusting device for split plate cylinder |
| JP2002328499A (en) * | 2001-04-27 | 2002-11-15 | Sharp Corp | Image forming device |
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| CN108614404A (en) | 2018-10-02 |
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