CN220509291U - Processing box - Google Patents
Processing box Download PDFInfo
- Publication number
- CN220509291U CN220509291U CN202321600575.8U CN202321600575U CN220509291U CN 220509291 U CN220509291 U CN 220509291U CN 202321600575 U CN202321600575 U CN 202321600575U CN 220509291 U CN220509291 U CN 220509291U
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- China
- Prior art keywords
- gear
- developing roller
- process cartridge
- photosensitive drum
- contact portion
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- 238000012545 processing Methods 0.000 title description 3
- 238000000034 method Methods 0.000 claims abstract description 61
- 230000008878 coupling Effects 0.000 claims abstract description 48
- 238000010168 coupling process Methods 0.000 claims abstract description 48
- 238000005859 coupling reaction Methods 0.000 claims abstract description 48
- 239000000843 powder Substances 0.000 claims abstract description 17
- 230000004044 response Effects 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 description 10
- 206010070834 Sensitisation Diseases 0.000 description 3
- 230000008313 sensitization Effects 0.000 description 3
- 238000007639 printing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
A process cartridge includes a housing for accommodating a developer, having a driving side and a conductive side disposed opposite to each other in a longitudinal direction; a photosensitive drum rotatably provided in the casing; a developing roller rotatably disposed in the housing; the driving side is provided with: a coupling member rotatable about a rotation axis in a longitudinal direction in response to a rotational driving force of the image forming apparatus; a photosensitive drum gear which rotates following the rotation of the coupling member and drives the photosensitive drum to rotate; a developing roller gear that rotates following the rotation of the coupling member and drives the developing roller to rotate; an idler wheel meshed with the developing roller gear and rotating along with the developing roller gear; the powder feeding roller gear is meshed with the idler pulley, rotates along with the idler pulley and drives the powder feeding roller to rotate; the conductive side is provided with: and a first contact portion and a second contact portion for electrically connecting with the image forming apparatus, the first contact portion being disposed above the second contact portion.
Description
Technical Field
The present utility model relates to a process cartridge detachably mountable to an image forming apparatus.
Background
The related art discloses an image forming apparatus such as a laser printer, to which a process cartridge is attached to a main body of the apparatus so as to be detachable therefrom. The process cartridge contains a developer. After the developer in the process cartridge is used up, the cartridge is removed from the main body of the apparatus. Then, a new process cartridge is mounted into the main body. Further, when a jam occurs in the main body of the apparatus, the process cartridge may be removed from the main body to remove the jam, and then mounted to the main body.
The process cartridge is configured to be detachably mounted in the image forming apparatus and is replaceable, thereby facilitating maintenance and use by a user, but with the progress of image forming technology and the convenience of the user for saving a space for use, there is a need to provide a more miniaturized image forming apparatus and process cartridge, in which a conductive contact is provided between a first coupling member and a second coupling member, and an image forming assembly of the process cartridge is electrically connected to the image forming apparatus through the conductive contact to supply power. However, the first coupling member and the second coupling member in such a positioning manner generate corresponding rotational forces when rotated, which causes the process cartridge to be biased or tilted, thereby causing poor contact of the contacts and affecting print quality.
Disclosure of Invention
The main object of the present utility model is to provide a miniaturized process cartridge which can make a conductive contact stably contact with an image forming apparatus and enhance the print quality of the image forming apparatus.
In order to achieve the technical effects, the utility model is realized by the following technical scheme:
a process cartridge detachably mountable to an image forming apparatus, the process cartridge comprising:
a housing for accommodating a developer, having a driving side and a conductive side disposed opposite to each other in a longitudinal direction;
a photosensitive drum rotatably provided in the casing;
a developing roller rotatably disposed in the housing;
the driving side is provided with:
a coupling member rotatable about a rotation axis in a longitudinal direction in response to a rotational driving force of the image forming apparatus;
a photosensitive drum gear that rotates following the rotation of the coupling member and drives the photosensitive drum to rotate;
a developing roller gear that rotates following the rotation of the coupling member and drives the developing roller to rotate;
an idler gear engaged with the developing roller gear to rotate following the developing roller gear;
the powder feeding roller gear is meshed with the idler wheel, rotates along with the idler wheel and drives the powder feeding roller to rotate;
the conductive side is provided with:
and a first contact portion and a second contact portion for electrically connecting with the image forming apparatus, the first contact portion being disposed above the second contact portion.
Further, the rotation shaft is disposed below the first contact portion, and the rotation shaft is disposed above the second contact portion.
Further, the coupling member includes a coupling portion and a first tooth portion which are sequentially aligned along a longitudinal direction of the housing, the first tooth portion being engaged with the developing roller gear to transmit a driving force to the developing roller gear.
Further, the developing roller gear includes a second tooth portion and a third tooth portion, the second tooth portion is meshed with the first tooth portion, and the idler gear is meshed with the third tooth portion.
Further, the photosensitive drum gear is meshed with the developing roller gear, rotates following the rotation of the developing roller gear and drives the photosensitive drum to rotate.
Further, the rotation shaft is disposed below the second contact portion.
Further, the coupling member is disposed coaxially with the photosensitive drum gear, and the coupling member and the photosensitive drum gear are sequentially arranged along the longitudinal direction of the casing.
Further, the developing roller gear includes a first tooth portion and a second tooth portion arranged in order along a longitudinal direction of the casing, the first tooth portion being engaged with the photosensitive drum gear, and the idler gear being engaged with the second tooth portion.
Further, the driving side is further provided with a stirring frame gear, the stirring frame gear is meshed with the idler wheel, and the stirring frame gear is driven to rotate along with the rotation of the idler wheel.
Further, the agitator frame gear is located between the first contact portion and the second contact portion.
After adopting above-mentioned technical scheme, through developing roller gear transmission drive power to the sensitization drum gear to drive the sensitization drum rotation through sensitization drum gear, simplified the gear structure of drive end, can make the gear structure of processing box compact, can make conductive contact and image forming device stable contact, promote image forming device's print quality.
Drawings
Fig. 1 is a schematic perspective view of a process cartridge provided by the present utility model;
fig. 2 is an exploded perspective view of the drive side of the process cartridge provided by the present utility model;
FIG. 3 is a schematic front view of the drive side of the process cartridge provided by the present utility model;
fig. 4 is a schematic cross-sectional view of a process cartridge according to an embodiment of the present utility model;
FIG. 5 is a schematic front view of a process cartridge without a cover on the drive side according to an embodiment of the present utility model;
fig. 6 is a schematic perspective view of a conductive side of a process cartridge according to an embodiment of the present utility model;
FIG. 7 is a schematic front view of the conductive side of a process cartridge provided in an embodiment of the present utility model;
fig. 8 is an exploded perspective view of the drive side of the process cartridge provided in embodiment 2 of the present utility model;
fig. 9 is a schematic front view of the drive side of the process cartridge provided in embodiment 2 of the present utility model;
fig. 10 is a schematic front view of a process cartridge without a cover on the drive side provided in embodiment 2 of the present utility model;
fig. 11 is a schematic front view of the conductive side of the process cartridge provided in embodiment 2 of the present utility model;
fig. 12 is an exploded perspective view of the drive side of the process cartridge provided in embodiment 3 of the present utility model;
fig. 13 is a schematic front view of a process cartridge without a cover on the drive side provided in embodiment 3 of the present utility model.
Detailed Description
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in fig. 1 to 4, the process cartridge 100 of the present utility model is detachably mounted in an image forming apparatus, and includes a casing 1 that can be filled with developer, the casing 1 having therein an accommodating space that accommodates developer, a photosensitive drum 10, a developing roller 20, and a toner feeding roller 30 that are supported by the casing 1, the photosensitive drum 10, the developing roller 20, and the toner feeding roller 30 being rotatably disposed in the casing 1 and extending in a longitudinal direction of the casing 1, a rotation axial direction of the developing roller 20 being a longitudinal direction of the process cartridge 100, a direction perpendicular to an axial direction of the developing roller 20 being a lateral direction of the process cartridge 100, a handle being provided at a rear side in the lateral direction of the casing 1 for a user to grasp. At one end of the casing 1 in the longitudinal direction, a coupling member 2 is provided, the coupling member 2 being for engagement with a driving part (not shown in the drawings) in the image forming apparatus to receive a driving force and rotate about a rotation axis 2a extending in the longitudinal direction, a side of the coupling member 2 being referred to as a driving side 11 of the process cartridge 100, the process cartridge 100 being provided at the opposite side of the coupling member 2 in the longitudinal direction with a conductive member 122 for electrically connecting the photosensitive drum 10 and the developing roller 20, the conductive member 122 being for contact with an electric output part (not shown in the drawings) in the image forming apparatus to charge the photosensitive drum 10 and the developing roller 20, a side of the conductive member 122 being referred to as a conductive side 12 of the process cartridge 100.
As shown in fig. 2 and 5, the driving side 11 of the process cartridge 100 in this embodiment includes a coupling member 2, a photosensitive drum gear 3, a developing roller gear 4, an idler gear 5, and a toner feeding roller gear 6. The coupling member 2 includes a coupling portion 21 and a first tooth portion 22, wherein the coupling portion 21 and the first tooth portion 22 are sequentially aligned along the longitudinal direction of the casing 1, and the first tooth portion 22 is engaged with the developing roller gear 4 to transmit the driving force to the developing roller gear 4; the developing roller gear 4 includes a second tooth portion 41 and a third tooth portion 42, the second tooth portion 41 of the developing roller gear 4 meshes with the first tooth portion 32, the idler pulley 5 meshes with the third tooth portion 42, and the powder feeding roller gear 6 meshes with the idler pulley 5 to transmit the driving force to the powder feeding roller gear 6; the photosensitive drum gear 3 is engaged with the first tooth portion 22 of the developing roller gear 4, and rotates following the developing roller gear 4, and the photosensitive drum gear 3 is mounted at one end of the photosensitive drum 10 on the driving side 11 to drive the photosensitive drum 10 to rotate. The developing roller gear 4 is installed at an axial end of a developing roller shaft of the developing roller 20, the toner feeding roller gear 6 is installed at an axial end of a side of the toner feeding roller shaft, the toner feeding roller 30 is for feeding developer onto the developing roller 20, and the developing roller 20 is for developing an upper electrostatic latent image formed on the photosensitive drum 10. The driving side 11 further includes a first gear cover 111 and a first side cover 112, the first gear cover 111 being disposed outside the coupling member 3, the developing roller gear 4, the idler gear 5, and the powder feeding roller gear 6 to prevent the gears of the driving side 11 from being disengaged, and the first side cover 112 being disposed outside the first gear cover 111 and the photosensitive drum gear 3.
As shown in fig. 6 and 7, the conductive side 12 is provided with a first contact portion 121 and a second contact portion 122, the first contact portion 121 being in contact with a communication contact of the image forming apparatus to bring a storage part on the process cartridge into communication connection with the image forming apparatus when the process cartridge is mounted in the image forming apparatus, and the second contact portion 122 being connected with a power contact of the image forming apparatus to form a power supply circuit between an image forming part of the process cartridge and a power output part of the image forming apparatus. The first contact portion 121 includes one or more contact contacts exposed outside the housing 1, and the contact contacts of the first contact portion 121 are formed with a first electric contact surface that faces in a downward direction, and the communication contact of the image forming apparatus contacts the first electric contact surface from below (from bottom to top). The plurality of contact points of the first contact point portion 121 are arranged in the front-rear direction, and are connectable to the plurality of communication contacts of the image forming apparatus in one-to-one correspondence. The second contact part 122 includes one or more contact contacts exposed outside the housing, the second contact part 122 is disposed under the first contact part 121, and the plurality of contact contacts of the second contact part 122 are disposed on the conductive side of the housing in the front-rear direction in an aligned manner and form a second electrical contact surface. The rotation shaft 2a of the coupling member 2 is disposed below the first contact portion 121 and above the second contact portion 122, receives the driving force of the image forming apparatus through a single coupling member, and drives the image forming assembly of the process cartridge to operate, simplifying the gear structure of the driving end, making the gear structure of the process cartridge compact, making the first contact portion and the second contact portion stably contact the image forming apparatus, and improving the printing quality of the image forming apparatus.
Example 2
As shown in fig. 8 and 10, the driving side 11 of the process cartridge includes a coupling member 2, a photosensitive drum gear 3, a developing roller gear 4, an idler gear 5, a powder feeding roller gear 6, and a stirring frame gear 7. The coupling member 2 is coaxially disposed with the photosensitive drum gear 3, the coupling member 2 and the photosensitive drum gear 3 are sequentially arranged along the longitudinal direction of the casing 1, the photosensitive drum gear 3 rotates following the coupling member 2, and the photosensitive drum gear 3 meshes with the developing roller gear 4 to transmit the driving force to the developing roller gear 4; the developing roller gear 4 includes a first tooth portion 41 and a second tooth portion 42 which are sequentially arranged along the longitudinal direction of the casing 1, the first tooth portion 41 of the developing roller gear being engaged with the photosensitive drum gear 3, the idler gear 5 being engaged with the second tooth portion 42, the powder feeding roller gear 6 being engaged with the idler gear 5 to transmit a driving force from the developing roller gear 4 to the powder feeding roller gear 6; the stirring rack gear 7 is meshed with the idler wheel 5, rotates along with the idler wheel 5, and drives the stirring rack 40 to rotate. The developing roller gear 4 is installed at an axial end of a developing roller shaft of the developing roller 20, the toner feeding roller gear 6 is installed at an axial end of a side of the toner feeding roller shaft, the stirring frame 40 is used for stirring the developer, the toner feeding roller 30 is used for conveying the developer onto the developing roller 20, and the developing roller 10 is used for developing an upper electrostatic latent image formed on the photosensitive drum 10. The driving side 11 further includes a first gear cover 111 and a first side cover 112, the first gear cover 111 being provided outside the developing roller gear 4, the idler gear 5, and the powder feeding roller gear 6 to prevent the gears of the driving side 11 from being separated, and the first side cover 112 being provided outside the first gear cover 111 and the photosensitive drum gear 3.
As shown in fig. 9 and 11, the conductive side 12 is provided with a first contact portion 121 and a second contact portion 122, the first contact portion 121 being in contact with a communication contact of the image forming apparatus to bring a storage part on the process cartridge into communication connection with the image forming apparatus when the process cartridge is mounted in the image forming apparatus, and the second contact portion 122 being connected with a power contact of the image forming apparatus to form a power supply circuit between an image forming part of the process cartridge and a power output part of the image forming apparatus. The first contact portion 121 includes one or more contact contacts exposed outside the housing 1, and the contact contacts of the first contact portion 121 are formed with a first electric contact surface that faces in a downward direction, and the communication contact of the image forming apparatus contacts the first electric contact surface from below (from bottom to top). The plurality of contact points of the first contact point portion 121 are arranged in the front-rear direction, and are connectable to the plurality of communication contacts of the image forming apparatus in one-to-one correspondence. The second contact part 122 includes one or more contact contacts exposed outside the housing, the second contact part 122 is disposed under the first contact part 121, and the plurality of contact contacts of the second contact part 122 are disposed on the conductive side of the housing in the front-rear direction in an aligned manner and form a second electrical contact surface. The rotation shaft 2a of the coupling member 2 is disposed below the two contact portions 122, receives the driving force of the image forming apparatus through a single coupling member, and drives the image forming assembly of the process cartridge to operate, simplifying the gear structure of the driving end, enabling the gear structure of the process cartridge to be compact, enabling the first contact portion and the second contact portion to be in stable contact with the image forming apparatus, and improving the printing quality of the image forming apparatus.
Example 3
As shown in fig. 12 and 13, the driving side 11 of the process cartridge 100 in this embodiment includes a first coupling member 2, a second coupling member 3, a developing roller gear 4, an idler gear 5, a powder feeding roller gear 6, and a stirring frame gear 9. The first coupling member 2 includes a coupling portion 21 and a first tooth portion 22, wherein the coupling portion 21 and the first tooth portion 22 are sequentially aligned along the longitudinal direction of the casing 1, and the first tooth portion 22 is engaged with the developing roller gear 4 to transmit a driving force to the developing roller gear 4; the developing roller gear 4 includes a second tooth portion 41 and a third tooth portion 42, the second tooth portion 41 of the developing roller gear 4 meshes with the first tooth portion 32, the idler pulley 5 meshes with the third tooth portion 42, the powder feeding roller gear 6 meshes with the idler pulley 5 to transmit driving force to the powder feeding roller gear 6, the agitator gear 9 meshes with the idler pulley 5, and rotates following the idler pulley 5; the second coupling member 4 is mounted at one end of the photosensitive drum 10 at the driving side 11 to rotate the photosensitive drum 10. The developing roller gear 4 is installed at an axial end of a developing roller shaft of the developing roller 20, the toner feeding roller gear 6 is installed at an axial end of a side of the toner feeding roller shaft, the toner feeding roller 30 is for feeding developer onto the developing roller 20, and the developing roller 20 is for developing an upper electrostatic latent image formed on the photosensitive drum 10. The driving side 11 further includes a first gear cover 111 and a first side cover 112, the first gear cover 111 being disposed outside the coupling member 3, the developing roller gear 4, the idler gear 5, and the powder feeding roller gear 6 to prevent the gears of the driving side 11 from being disengaged, and the first side cover 112 being disposed outside the first gear cover 111 and the photosensitive drum gear 3.
The conductive side 12 is provided with a first contact portion 121 and a second contact portion 122, the first contact portion 121 being in contact with a communication contact of the image forming apparatus when the process cartridge is mounted in the image forming apparatus so that a storage part on the process cartridge is brought into communication connection with the image forming apparatus, the second contact portion 122 being connected with a power contact of the image forming apparatus so that a power supply circuit is formed between an image forming part of the process cartridge and a power output part of the image forming apparatus, wherein the second contact portion 122 is provided below the first contact portion 121, the first coupling member 2 is located between the first contact portion 121 and the second contact portion 122, and the second coupling member 3 is located below the second contact portion 122. The agitator gear 7 is provided on the driving side 11, and the conductive side 12 is gear-free, simplifying the gear train structure of the developing cartridge. In addition, the agitator gear 7 is located between the first contact portion 121 and the second contact portion 122.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. A process cartridge detachably mountable to an image forming apparatus, the process cartridge comprising:
a housing for accommodating a developer, having a driving side and a conductive side disposed opposite to each other in a longitudinal direction;
a photosensitive drum rotatably provided in the casing;
a developing roller rotatably disposed in the housing;
the driving side is provided with:
a coupling member rotatable about a rotation axis in a longitudinal direction in response to a rotational driving force of the image forming apparatus;
a photosensitive drum gear that rotates following the rotation of the coupling member and drives the photosensitive drum to rotate;
a developing roller gear that rotates following the rotation of the coupling member and drives the developing roller to rotate;
an idler gear engaged with the developing roller gear to rotate following the developing roller gear;
the powder feeding roller gear is meshed with the idler wheel, rotates along with the idler wheel and drives the powder feeding roller to rotate;
the method is characterized in that the conductive side is provided with:
and a first contact portion and a second contact portion for electrically connecting with the image forming apparatus, the first contact portion being disposed above the second contact portion.
2. A process cartridge according to claim 1, wherein said rotation shaft is provided below said first contact portion, and said rotation shaft is provided above said second contact portion.
3. A process cartridge according to claim 1, wherein said coupling member includes a coupling portion and a first tooth portion, said coupling portion and said first tooth portion being arranged in order along a longitudinal direction of said housing, said first tooth portion being engaged with said developing roller gear to transmit a driving force to said developing roller gear.
4. A process cartridge according to claim 3, wherein said developing roller gear includes a second tooth portion and a third tooth portion, said second tooth portion being meshed with said first tooth portion, said idler gear being meshed with said third tooth portion.
5. A process cartridge according to claim 1, wherein said photosensitive drum gear is engaged with said developing roller gear, rotates following rotation of said developing roller gear, and rotates said photosensitive drum.
6. A process cartridge according to claim 1, wherein said rotation shaft is provided below said second contact portion.
7. A process cartridge according to claim 1, wherein said coupling member is provided coaxially with said photosensitive drum gear, and said coupling member and said photosensitive drum gear are arranged in order along a longitudinal direction of the casing.
8. A process cartridge according to claim 1, wherein said developing roller gear includes a first tooth portion and a second tooth portion arranged in order along a longitudinal direction of said casing, said first tooth portion being engaged with said photosensitive drum gear, said idler gear being engaged with said second tooth portion.
9. A process cartridge according to claim 1, wherein said driving side is further provided with a stirring frame gear, said stirring frame gear being engaged with said idler gear, and rotating the stirring frame following rotation of said idler gear.
10. A process cartridge according to claim 9, wherein said agitator frame gear is located between said first contact portion and said second contact portion.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221600164 | 2022-06-25 | ||
| CN2022216001644 | 2022-06-25 | ||
| CN202221904143 | 2022-07-23 | ||
| CN2022219041431 | 2022-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220509291U true CN220509291U (en) | 2024-02-20 |
Family
ID=89868164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321600575.8U Active CN220509291U (en) | 2022-06-25 | 2023-06-24 | Processing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220509291U (en) |
-
2023
- 2023-06-24 CN CN202321600575.8U patent/CN220509291U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |