CN210323778U - Processing box - Google Patents
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- CN210323778U CN210323778U CN201921268608.7U CN201921268608U CN210323778U CN 210323778 U CN210323778 U CN 210323778U CN 201921268608 U CN201921268608 U CN 201921268608U CN 210323778 U CN210323778 U CN 210323778U
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- gear
- photosensitive drum
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- driving
- process cartridge
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Abstract
The utility model provides a processing box, include: a box body; the photosensitive drum can be rotatably supported between the two end walls of the box body around the axis of the photosensitive drum; the developing roller can be supported between two end walls of the box body in a rotating way around the axis of the developing roller; the rotating force transmission assembly is connected with one shaft end of the photosensitive drum and comprises a driving force receiving head and a driving gear, and the driving force receiving head can be matched with a driving head of the imaging device; and the gear assembly is connected with one shaft end of the developing roller and comprises a primary gear and a secondary gear, the primary gear is meshed with the driving gear, and the secondary gear can be meshed with a transmission gear of the imaging device. The processing box is high in universality, simple in structure and stable in machine falling, the use cost of an end user is effectively reduced, and the processing box can be used on imaging devices of various models in a compatible mode.
Description
Technical Field
The utility model belongs to the technical field of the printing consumables technique and specifically relates to a detachably installs in electrophotographic image forming device's such as xerographic printer, digital copier or laser printer processing box.
Background
An image forming apparatus of an electrophotographic type, such as a laser printer, is an apparatus for forming an image on an image forming medium, such as paper, by using the principle of electrophotography through at least processes of charging, exposure, development, transfer, fixing, and cleaning. Consumable materials used in image forming apparatuses are commonly referred to as printing supplies. Generally, toner consumed for development is generally supplied from the process cartridge, and when the toner in the process cartridge is used up, the process cartridge is replaced with a new one. The existing processing box comprises a powder bin main body for storing carbon powder, a conductive end at one side of the powder bin main body, and a driving force receiving piece and a transmission gear set which are used for receiving the driving force of an imaging device at the other end. The powder bin is internally provided with a powder feeding mechanism, a stirring mechanism, a developing roller which is arranged at one end of the powder bin main body and is used for providing developing materials for the photosensitive assembly, a gear for driving the developing roller to rotate, and a handle of a processing box which is arranged on the powder bin and corresponds to the waste powder bin at the other side of the developing roller.
There are three types of image forming apparatuses having different driving structures, and the driving of the process cartridge is realized by these three driving methods:
1. the first method is as follows: the imaging device is provided with a distortion driving head 1, as shown in fig. 1, the distortion driving head is in transmission fit with a corresponding distortion structure on a photosensitive drum driving head connected with a driving end of a processing box, and then the photosensitive drum and a developing roller are driven to rotate through gear transmission of the photosensitive drum and the developing roller;
2. the second method comprises the following steps: the imaging device is provided with a transmission gear head 2, as shown in fig. 2, the transmission gear head is matched with a developing roller gear connected with the driving end of the processing box, and then the developing roller is in gear transmission with the photosensitive drum to drive the photosensitive drum to rotate;
3. the third method comprises the following steps: the last distortion driving head 3 that is provided with the gear that is provided with of image forming device, as shown in fig. 3, through with connect the sensitization drum drive head of processing box drive end on correspond distortion structure realize the transmission sensitization drum, through the gear on the distortion driving head in addition, through with the developer roll gear cooperation of connecting the processing box drive end, drive the developer roll rotation simultaneously.
Therefore, the process cartridge products with three different transmission structures are required to be adapted to the image forming apparatuses with the three different driving structures, which results in poor universality of the process cartridge and high use cost of users. Meanwhile, the processing boxes with the models are very similar in appearance, so that visual judgment errors are easily caused for users, mistakes can be made when the processing boxes are purchased, and the processing boxes with the models which are not suitable for the imaging device are easily purchased.
Disclosure of Invention
The utility model aims at providing a processing box that commonality is high, simple structure, the machine that falls steadily and user use cost is low can compatible the use on the image device of multiple model.
In order to achieve the above-mentioned primary object, the present invention provides a process cartridge, comprising: a box body; the photosensitive drum can be rotatably supported between the two end walls of the box body around the axis of the photosensitive drum; the developing roller can be supported between two end walls of the box body in a rotating way around the axis of the developing roller; the rotating force transmission assembly is connected with one shaft end of the photosensitive drum and comprises a driving force receiving head and a driving gear, and the driving force receiving head can be matched with a driving head of the imaging device; and the gear assembly is connected with one shaft end of the developing roller and comprises a primary gear and a secondary gear, the primary gear is meshed with the driving gear, and the secondary gear can be meshed with a transmission gear of the imaging device.
It can be seen from the above scheme that the rotating force transmission assembly is connected with one shaft end of the photosensitive drum, the rotating force transmission assembly comprises a driving force receiving head and a driving gear, and the driving force receiving head can be matched with a driving head of the imaging device. Meanwhile, the gear assembly is connected with one shaft end of the developing roller and comprises a primary gear and a secondary gear, the primary gear is meshed with the driving gear, and the secondary gear can be meshed with a transmission gear of the imaging device. The driving head of the imaging device is matched with the driving force receiving head of the shaft end of the photosensitive drum, the photosensitive drum is driven to rotate around the axis of the photosensitive drum, and meanwhile, the driving gear of the shaft end of the photosensitive drum is meshed with the first-level gear of the shaft end of the developing roller, so that the developing roller is driven to rotate around the axis of the developing roller. Or, the driving head of the imaging device is matched with the secondary gear at the shaft end of the developing roller to drive the developing roller to rotate around the self axis, and meanwhile, the primary gear at the shaft end of the developing roller is meshed with the driving gear at the shaft end of the photosensitive drum to further drive the photosensitive drum to rotate around the self axis. And simultaneously, the driving gear at the shaft end of the photosensitive drum and the primary gear at the shaft end of the developing roller are always in a meshed state. Therefore, the processing box can be used on imaging devices of various models in a compatible mode, the universality is high, and the use cost of an end user is effectively reduced. Meanwhile, the processing box can stably fall into the imaging device, and the working performance is reliable and stable. Moreover, the processing box has simple structure and greatly reduces the production cost.
The further scheme is that the primary gear is connected with the shaft end of the developing roller, and the secondary gear is located on the side face, far away from the developing roller, of the primary gear, so that the meshing stability between the gears is improved.
Further, in the axial direction of the photosensitive drum, the distance between the outer end face of the driving force receiving head and the shaft end face of the photosensitive drum is smaller than the distance between the outer end face of the secondary gear and the shaft end face of the photosensitive drum.
According to the scheme, in the axial direction of the photosensitive drum, the distance between the outer end face of the driving force receiving head and the shaft end face of the photosensitive drum is smaller than the distance between the outer end face of the secondary gear and the shaft end face of the photosensitive drum, so that the reliability that the driving force receiving head and the secondary gear are respectively matched with the imaging device is ensured, and the processing box can stably fall into the imaging device.
In a further aspect, in the axial direction of the photosensitive drum, the distance between the outer end face of the driving force receiving head and the shaft end face of the photosensitive drum is greater than the distance between the end face of the secondary gear connected with the primary gear and the shaft end face of the photosensitive drum.
Further, the process cartridge may further include a holding end cap which is fitted over the gear assembly and mounted on the end face of the cartridge body, and a distance between an outer end face of the driving force receiving head and an outer end face of the holding end cap is larger than a distance between an outer end face of the secondary gear and an outer end face of the holding end cap in an axial direction of the photosensitive drum.
According to the scheme, in the axial direction of the photosensitive drum, the distance between the outer end face of the driving force receiving head and the outer end face of the holding end cover is larger than the distance between the outer end face of the secondary gear and the outer end face of the holding end cover, so that the reliability that the driving force receiving head and the secondary gear are respectively matched with the imaging device is ensured, and the processing box can stably fall into the imaging device.
Further, in the axial direction of the photosensitive drum, the height of the primary gear is larger than that of the driving gear, and the meshing reliability of the primary gear and the driving gear is improved.
Further, a driving force receiving head is provided protruding from the driving gear in the axial direction of the photosensitive drum.
The further scheme is that the meshing transmission ratio between the primary gear and the driving gear is consistent with the meshing transmission ratio between the secondary gear and the transmission gear, and the working reliability and stability of the processing box are improved.
Drawings
Fig. 1 is a structural view of a twist driving head of a conventional image forming apparatus.
Fig. 2 is a structural view of a transmission gear of a conventional image forming apparatus.
Fig. 3 is a structural view of a twist driving head having a gear on a conventional image forming apparatus.
Fig. 4 is a structural view of an embodiment of the process cartridge of the present invention.
Fig. 5 is a partially exploded view of an embodiment of the process cartridge of the present invention.
Fig. 6 is a partial structural view of an embodiment of the process cartridge of the present invention.
Fig. 7 is a partial front view of an embodiment of the process cartridge of the present invention.
The present invention will be further explained with reference to the drawings and examples.
Detailed Description
Referring to fig. 4 to 7, the process cartridge 4 includes a cartridge body 41, a photosensitive drum 45, a developing roller 46, a rotational force transmitting assembly 43, a gear assembly 44, and a holding end cap 42, the cartridge body 41 being provided with a powder bin for storing toner powder and a waste powder bin for storing waste powder. The photosensitive drum 45 is rotatably supported around its axis between both end walls of the cartridge body 41, specifically, the photosensitive drum 45 is rotatably supported around its axis between both end walls of the waste toner hopper. The developing roller 46 is supported between both end walls of the cartridge body 41 rotatably about its own axis, and specifically, the developing roller 46 is supported between both end walls of the powder hopper rotatably about its own axis.
The rotational force transmitting assembly 43 is connected to one shaft end of the photosensitive drum 45, and the rotational force transmitting assembly 43 includes a driving force receiving head 431 and a driving gear 432, and the driving force receiving head 431 is engageable with a driving head of the image forming apparatus. Preferably, in the axial direction of the photosensitive drum 45, a driving force receiving head 431 is provided protruding from the driving gear 432.
A gear assembly 44 is coupled to one axial end of the developing roller 46, the gear assembly 44 including a primary gear 442 and a secondary gear 441, the primary gear 442 being engaged with the driving gear 432, and the secondary gear 441 being engageable with a transmission gear of the image forming apparatus. Preferably, the meshing transmission ratio between the primary gear 442 and the driving gear 432 is identical to the meshing transmission ratio between the secondary gear 441 and the transmission gear.
Specifically, the primary gear 442 is coupled to the shaft end of the developing roller 46, and the secondary gear 441 is located on the side of the primary gear 442 remote from the developing roller 46. In the axial direction of the photosensitive drum 45, a distance H1 between the outer end surface of the driving force receiving head 431 and the axial end surface of the photosensitive drum 45 is smaller than a distance H2 between the outer end surface of the secondary gear 441 and the axial end surface of the photosensitive drum 45. Further, in the axial direction of the photosensitive drum 45, the distance H1 between the outer end face of the driving force receiving head 431 and the axial end face of the photosensitive drum 45 is larger than the distance between the end face of the secondary gear 441 connected to the primary gear 442 and the axial end face of the photosensitive drum 45.
Alternatively, the holding cap 42 is fitted over the gear assembly 44 and mounted on the end face of the case 41, and the distance H4 between the outer end face of the driving force receiving head 431 and the outer end face of the holding cap 42 is larger than the distance H5 between the outer end face of the secondary gear 441 and the outer end face of the holding cap 42 in the axial direction of the photosensitive drum 45.
The height of the primary gear 442 is greater than the height of the drive gear 432 in the axial direction of the photosensitive drum 45, improving the reliability and stability of the meshing operation between the primary gear 442 and the drive gear 432.
When the process cartridge 4 of the present embodiment is mounted to the image forming apparatus of the first type, the driving head 1 of the image forming apparatus is provided with only the twisting recess 11 as shown in fig. 1, the driving force receiving head 431 at the shaft end of the photosensitive drum 45 of the process cartridge 4 of the present embodiment is insertable into and fittable into the twisting recess 11 of the driving head 1 of the image forming apparatus, and then the driving head 1 of the image forming apparatus drives the photosensitive drum 45 to rotate about its axis while the driving gear 432 at the shaft end of the photosensitive drum 45 is engaged with the primary gear 442 at the shaft end of the developing roller 46 to thereby drive the developing roller 46 to rotate about its axis. Under the action of the driving force of the driving head 1 of the imaging device, the processing box 4 realizes continuous powder supply and development, and the normal printing of the imaging device is realized. The process cartridge 4 is simple in structure, can be smoothly loaded into the image forming apparatus, and is reliable and stable in working performance.
When the process cartridge 4 of the present embodiment is mounted to the second image forming apparatus, the driving head 2 of the image forming apparatus is shown in fig. 2, the driving head 2 is provided with only the transmission gear 21, the secondary gear 441 at the shaft end of the developing roller 46 of the process cartridge 4 of the present embodiment can be engaged with the transmission gear 21 of the image forming apparatus, and then the driving head 2 of the image forming apparatus drives the developing roller 46 to rotate about its own axis, while the primary gear 442 at the shaft end of the developing roller 46 is engaged with the driving gear 432 at the shaft end of the photosensitive drum 45, thereby driving the photosensitive drum 45 to rotate about its own axis. Under the action of the driving force of the driving head 2 of the imaging device, the processing box 4 realizes continuous powder supply and development, and the normal printing of the imaging device is realized. The process cartridge 4 is simple in structure, can be smoothly loaded into the image forming apparatus, and is reliable and stable in working performance.
When the process cartridge 4 of the present embodiment is mounted to the third image forming apparatus, the driving head 3 of the image forming apparatus is provided with both the twisting recess 31 and the transmission gear 32 as shown in fig. 3, the driving force receiving head 431 at the shaft end of the photosensitive drum 45 of the process cartridge 4 of the present embodiment is inserted into the twisting recess 31 of the driving head 3 of the image forming apparatus to be fitted, and the secondary gear 441 at the shaft end of the developing roller 46 of the process cartridge 4 of the present embodiment is engaged with the transmission gear 32 of the image forming apparatus, so that the driving head 3 of the image forming apparatus synchronously drives the photosensitive drum 45 and the developing roller 46 to rotate about their own axes, respectively, while the driving gear 432 at the shaft end of the photosensitive drum 45 and the primary gear 442 at the shaft end of the. Under the action of the driving force of the driving head 3 of the imaging device, the processing box 4 realizes continuous powder supply and development, and the normal printing of the imaging device is realized. The process cartridge 4 is simple in structure, can be smoothly loaded into the image forming apparatus, and is reliable and stable in working performance.
The utility model discloses processing box 4 can compatible use on above-mentioned three kinds of image device at least, and the commonality is high, reduces end user's use cost effectively. Meanwhile, the processing box 4 can stably fall into the imaging device, and the working performance is reliable and stable. Moreover, the structure of the processing box 4 is simple, and the production cost is greatly reduced.
Above embodiment is the preferred example of the utility model, and not the restriction the utility model discloses the range of implementing, the event all according to the utility model discloses the equivalent change or the decoration that structure, characteristic and principle were done of application for patent scope all should be included in the utility model discloses the patent application scope.
Claims (8)
1. A process cartridge comprising:
a box body;
the photosensitive drum can be rotatably supported between two end walls of the box body around the axis of the photosensitive drum;
a developing roller rotatably supported between both end walls of the cartridge body around its own axis;
characterized in that, the processing box further comprises:
the rotating force transmission assembly is connected with one shaft end of the photosensitive drum and comprises a driving force receiving head and a driving gear, and the driving force receiving head can be matched with a driving head of an imaging device;
the gear assembly, the gear assembly with a shaft end of developer roll is connected, the gear assembly includes primary gear and secondary gear, the primary gear with drive gear meshes, the secondary gear can mesh with image device's drive gear.
2. A process cartridge according to claim 1, wherein:
the primary gear is connected with the shaft end of the developing roller, and the secondary gear is located on the side face, far away from the developing roller, of the primary gear.
3. A process cartridge according to claim 1, wherein:
in the axial direction of the photosensitive drum, the distance between the outer end face of the driving force receiving head and the shaft end face of the photosensitive drum is smaller than the distance between the outer end face of the secondary gear and the shaft end face of the photosensitive drum.
4. A process cartridge according to claim 3, wherein:
in the axial direction of the photosensitive drum, the distance between the outer end face of the driving force receiving head and the shaft end face of the photosensitive drum is greater than the distance between the end face of the secondary gear connected with the primary gear and the shaft end face of the photosensitive drum.
5. A process cartridge according to claim 1, wherein:
the processing box also comprises a retaining end cover which covers the gear assembly and is arranged on the end surface of the box body;
the distance between the outer end face of the driving force receiving head and the outer end face of the holding end cap is larger than the distance between the outer end face of the secondary gear and the outer end face of the holding end cap in the photosensitive drum axial direction.
6. A process cartridge according to claim 1, wherein:
in the axial direction of the photosensitive drum, the height of the primary gear is greater than that of the driving gear.
7. A process cartridge according to claim 1, wherein:
the driving force receiving head is disposed to protrude from the driving gear in the axial direction of the photosensitive drum.
8. A process cartridge according to any one of claims 1 to 7, wherein:
the meshing transmission ratio between the primary gear and the driving gear is consistent with the meshing transmission ratio between the secondary gear and the transmission gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921268608.7U CN210323778U (en) | 2019-08-06 | 2019-08-06 | Processing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921268608.7U CN210323778U (en) | 2019-08-06 | 2019-08-06 | Processing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210323778U true CN210323778U (en) | 2020-04-14 |
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ID=70128643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921268608.7U Active CN210323778U (en) | 2019-08-06 | 2019-08-06 | Processing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210323778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110347029A (en) * | 2019-08-06 | 2019-10-18 | 珠海天威飞马打印耗材有限公司 | Handle box |
-
2019
- 2019-08-06 CN CN201921268608.7U patent/CN210323778U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110347029A (en) * | 2019-08-06 | 2019-10-18 | 珠海天威飞马打印耗材有限公司 | Handle box |
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