CN109725520B - Developing box and processing box thereof - Google Patents
Developing box and processing box thereof Download PDFInfo
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- CN109725520B CN109725520B CN201910033493.1A CN201910033493A CN109725520B CN 109725520 B CN109725520 B CN 109725520B CN 201910033493 A CN201910033493 A CN 201910033493A CN 109725520 B CN109725520 B CN 109725520B
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- guide part
- image forming
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- 238000012545 processing Methods 0.000 title abstract description 3
- 238000003860 storage Methods 0.000 claims abstract description 53
- 238000003384 imaging method Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 description 14
- 238000000926 separation method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction 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
- 238000003756 stirring Methods 0.000 description 1
Abstract
The present invention provides a developing cartridge detachably mountable to an image forming apparatus and movable between a first position and a second position, the developing cartridge including: a casing, a developing roller; the developing cartridge further includes: a storage medium fixedly installed at one end of the housing in a length direction and having an electric contact surface disposed to face an electric contact point of the image forming apparatus; the first guide part is arranged on one side of the shell, which is opposite to the electric contact surface, and when the developing box moves between the first position and the second position, at least one part of the first guide part can be abutted with the first guide part in the imaging device and receive the abutting force of the first guide part, so that the electric contact surface is always electrically connected with the electric contact point on the imaging device; the processing box comprises the developing box which is detachably arranged in the imaging equipment, and the manufacturing process is simple, the structure is stable, and the manufacturing cost is low.
Description
[ field of technology ]
The present invention relates to a transmission technology in an image forming apparatus, and more particularly, to a developing cartridge and a process cartridge thereof.
[ background Art ]
In electrophotographic image forming apparatuses such as laser printers, copiers, facsimile machines, and the like, a developing cartridge is generally provided which is detachable from the electrophotographic image forming apparatus so that a user can perform maintenance of the devices in the developing cartridge system.
The developing cartridge is divided into a separate cartridge including only a developing assembly such as a developing roller or a photosensitive drum assembly and a process cartridge integrating the developing assembly and the photosensitive drum assembly. Examples of the split cartridge include a developing cartridge including only a developing member such as a developing roller but not including a drum member, a drum cartridge including only a photosensitive drum member but not including a developing member. The developing cartridge generally includes a housing formed with a hopper that can accommodate developer, and a developing roller, one side of the hopper being provided with a developer outlet along a length direction of the housing, the developer outlet being provided with a toner feeding roller, and the developing roller being provided outside the toner feeding roller. The powder feeding roller and the developing roller are rotatably supported at two ends of the shell along the length direction of the shell. According to the size of the powder bin and the type of the developer, a developer stirring device can be arranged in the powder bin. In addition, the developing cartridge is provided with a regulating device for regulating the thickness of the developer on the surface of the developing roller, etc. The photosensitive drum assembly is generally provided with a drum unit having a photosensitive drum and other functional components for cleaning the photosensitive drum and fixing the developing cartridge. The developing cartridge is rotatably mounted to the drum cartridge and is movable between a first position rotationally offset to a second position relative to the drum cartridge by a force applying member in the image forming apparatus, and is typically integrally designed with the image forming apparatus body, and is also designed to be detachably mounted relative to the image forming apparatus body.
In the conventional developing cartridge, a guide portion engaged with a guide groove in an image forming apparatus is provided at both ends of the developing cartridge in a longitudinal direction thereof, and the developing cartridge is deflected by a fulcrum engaged with the guide groove in a process of cleaning and separating a developing roller from a photosensitive drum. In the prior art, a storage medium mounting portion movable with respect to a casing is provided at one end in a longitudinal direction of the developing cartridge, a storage medium is mounted on one side surface of the storage medium mounting portion, and an electric contact surface is provided on the storage medium. After the developing cartridge is mounted in the image forming apparatus, the elastic contact of the sensing chip on the image forming apparatus is brought into contact with the electrical contact surface of the storage medium, so that the image forming apparatus can be connected with the signal sensing circuit electrically connected with the storage medium. In order to prevent the position of the storage medium from being changed simultaneously when the developing cartridge moves in the process of separating and cleaning the photosensitive drum from the developing roller, so as to ensure that the electric contact surface of the storage medium is always electrically connected with the contact of the imaging device, in the prior art, the storage medium mounting part is arranged to be movable relative to the shell, and a rebound mechanism is arranged on the electric contact surface to be in contact with the contact of the imaging device, when the developing cartridge moves because of cleaning and separating, the storage medium can move relative to the developing cartridge so as to ensure that the position of the storage medium is basically unchanged relative to the imaging device, and further the imaging device still keeps electric connection with the electric contact surface of the storage medium. In addition, there are separate storage media in which contact with the image forming apparatus is achieved by an elastic conductive member, and even if the position of the storage medium is changed, the conductive member has elasticity, and an elastic contact for sensing the storage medium on the image forming apparatus can be adaptively deformed according to the displacement change to contact with the conductive member, so that the image forming apparatus can electrically sense the storage medium.
However, in the prior art, a technology of arranging a rebound mechanism on an electric contact surface of a storage medium is adopted, so that connection on a split electric contact surface is complex in structure and high in cost; the elastic conduction component is arranged on the electric contact surface of the storage medium, the connection structure on the split electric contact surface is complex, the production process is complex, the cost is high, and the situation of poor conduction in the use process exists. Therefore, there is an urgent need to provide a new design way to improve the shortcomings of the prior art.
[ invention ]
The invention aims to provide a developing box which has a simple structure, is stable and reliable, and can effectively improve the condition that the electric contact surface of a storage medium and the electric contact point of imaging equipment are always electrically connected in the moving process of the imaging equipment.
The technical scheme provided by the invention is as follows:
a developing cartridge detachably mountable to an image forming apparatus and movable between a first position and a second position, said developing cartridge comprising: a housing provided with a powder bin for accommodating a developer; a developing roller rotatably mounted on the casing in a length direction of the casing; the developing cartridge further includes: a storage medium fixedly installed at one end of the housing in a length direction and having an electrical contact surface disposed to face an electrical contact point of the image forming apparatus; and a first guide portion provided at a side of the housing facing away from the electrical contact surface, at least a portion of the first guide portion being capable of abutting against the first guide portion in the image forming apparatus when the developing cartridge is moved between the first position and the second position.
Further, when the developing cartridge moves between the first position and the second position, the first guide portion receives the force of the first guide portion to enable the electric contact surface to be always electrically connected with the electric contact point on the image forming apparatus.
Further, a second guide part is further arranged at the end part of the shell in the length direction, and the second guide part is matched with a guide groove in the imaging equipment;
when the developing cartridge moves between the first position and the second position, the developing cartridge deflects by taking a fulcrum at the matching position of the second guide part and the guide groove as a main supporting point and by taking a matching position of the first guide part and the first guide part as an auxiliary supporting point, so that the electric contact surface is always electrically connected with the electric contact point on the imaging device.
Further, two ends of the developing box in the length direction are respectively provided with a second guide part, and after the developing box is installed in the imaging device, two sides of the developing box in the length direction are respectively provided with guide grooves which are positioned in the imaging device and matched with the second guide parts;
when the developing cartridge moves between the first position and the second position, the developing cartridge rotates by taking the matching position of the second guide part and the guide groove as a fulcrum, at least one part of the first guide part is abutted against the first guide part, the developing cartridge takes the fulcrum of the matching position of the second guide part and the guide groove as a main supporting point, and the sliding contact point of the first guide part and the first guide part as an auxiliary supporting point deflects, so that the electric contact surface on the storage medium is always electrically connected with the electric contact point on the imaging device.
Further, in the first position, the developing roller and the photosensitive drum are in contact with each other to develop the electrostatic latent image, and in the second position, the developing roller and the photosensitive drum are spaced apart from each other.
Further, the first guide portion is a bump provided on a side of the housing facing away from the electrical contact surface.
Further, the first guiding part is an elastic lug or a hard lug arranged at one side of the shell opposite to the electric contact surface.
Further, the developing cartridge further includes:
and a storage medium mounting part fixedly arranged at one end of the shell in the length direction, wherein the storage medium is fixedly arranged at one side of the storage medium mounting part.
Further, the storage medium mounting portion has first and second sides opposite in direction, wherein the electrical contact surface is located at the first side and the first guide portion is located at the second side.
A process cartridge detachably mountable to an image forming apparatus, the process cartridge including one of the developing cartridges described above.
The beneficial effects of the invention are as follows:
in the invention, since the first guide part of the developing cartridge is arranged at one side of the shell opposite to the electric contact surface, when the developing cartridge moves between the first position and the second position, at least one part of the first guide part can be abutted with the first guide part and receive the abutting force applied by the first guide part, so that the developing cartridge deflects, and the electric contact surface on the storage medium is always electrically connected with the electric contact point on the imaging device. The developing box has the advantages of simple structure, low production cost and stable and reliable performance, and can avoid poor contact between the electric contact surface of the imaging device and the electric contact point of the imaging device in the moving process of the developing box.
[ description of the drawings ]
Fig. 1 is a schematic view of a structure of a developing cartridge and an image forming apparatus after a plurality of developing cartridges are loaded into the image forming apparatus according to embodiment 1 of the present invention;
FIG. 2 is a schematic view showing a state of partial positions of a developing cartridge and an image forming apparatus before cleaning separation according to embodiment 1 of the present invention;
fig. 3 is a perspective view of a developing cartridge of embodiment 1 of the present invention;
FIG. 4 is an enlarged view of part A of FIG. 3 of example 1 of the present invention;
fig. 5 is a partial perspective view of the developing cartridge and the image forming apparatus of embodiment 1 of the present invention;
FIG. 6 is a schematic view showing a state of partial positions of a developing cartridge and an image forming apparatus after cleaning separation according to embodiment 1 of the present invention;
FIG. 7 is a schematic view showing the assembly principle of the developing cartridge and drum assembly of embodiment 2 of the present invention;
[ detailed description ] of the invention
Example 1
As shown in fig. 1, 2, 5, the image forming apparatus 200 is internally provided with a plurality of accommodating chambers 2, and an electric contact point 201 and a shift lever 202 as a force applying member are provided in each of the corresponding accommodating chambers 2, wherein one end of the electric contact point 201 is provided with a first coil spring 203, and the electric contact point 201 is elastically connected with the body of the image forming apparatus 200 by the first coil spring 203, so that the electric contact point 201 of the image forming apparatus 200 is elastically electrically contacted with an electric contact surface 121 provided on the developing cartridge 100; the accommodating chamber 2 is a chamber having one end closed and the other end provided with an opening, and the developing cartridge 100 is detachably mounted in the accommodating chamber 2 of the image forming apparatus 200; the accommodating chamber 2 of the image forming apparatus 200 is provided therein with a photosensitive drum 21, a cleaning member (not shown), a pressing block 22, a first sidewall 23, a second sidewall (not shown), and a first top wall 24 connecting the first sidewall 23 and the second sidewall (not shown), wherein the first sidewall 23 and the second sidewall (not shown) are located at both sides in a longitudinal direction of the developing cartridge 100 after the developing cartridge 100 is loaded into the image forming apparatus 200, and the photosensitive drum 21 is rotatably supported between the first sidewall 23 and the second sidewall (not shown) and at a closed end of the accommodating chamber 2; a guide groove 231 is formed on each of the first side wall 23 and the second side wall (not shown), the guide groove 231 is an open groove formed in a straight line, one end of the guide groove is closed, and the other end of the guide groove is provided with an opening; one side of the first side wall 23 and the second side wall (not shown) near the guide groove 231 is further provided with a swing arm 232, the swing arm 232 is provided with a force receiving part 2321, a rotating shaft supporting part 2322 and a force transmitting part 2323, wherein the rotating shaft supporting part 2322 is convenient for deflection driving between the force receiving part 2321 and the force transmitting part 2323, when the deflector 202 of the imaging device 200 moves, the force receiving part 2321 is abutted against the deflector 202 and receives the acting force from the deflector 202, the swing arm 232 rotates in the w direction by taking the rotating shaft supporting part 2322 as the rotation center under the action of the deflector 202, and further pushes the developing box 100 to move in the direction far away from the photosensitive drum 21, so that the photosensitive drum 21 and the developing roller 11 arranged on the developing box 100 are separated from each other, and the cleaning mechanism arranged on the imaging device 200 is convenient for fully cleaning the photosensitive drum 21; a first guide part 233 is further provided on a side of the first sidewall 23 away from the guide groove 231, and the first guide part 233 is an inclined surface and forms an angle with the guide surface of the guide groove 231; the first top wall 24 is located on a side of the door 204 adjacent to the imaging device 200; the pressing block 22 is provided at one side of the first top wall 24, and the pressing block 22 is provided with a second coil spring 221 at one end near the first top wall 24 such that an elastic connection is formed between the pressing block 22 and the first top wall 24, the pressing block 22 being adapted to press the developing cartridge 100 against one end of the photosensitive drum 21 of the accommodating chamber 2 after the developing cartridge 100 is accommodated in the accommodating chamber 2 of the image forming apparatus 200 through the guide groove 231, thereby restricting the movement of the developing cartridge 100 within the image forming apparatus 200.
As shown in fig. 1 to 5, the developing cartridge 100 according to the present embodiment includes a casing 12, a storage medium 13, a developing roller 11, a toner feeding roller (not shown), and the like, wherein the casing 12 is provided with a toner cartridge accommodating developer, the casing 12 includes a third side wall 121, a fourth side wall 122, and a second top wall 123 connecting the above two side walls, the developing roller 11 is rotatable about its own axis and supported between the third side wall 121 and the fourth side wall 122, and a part of the surface of the developing roller 11 is exposed outside the casing 12; wherein the third side wall 121 and the fourth side wall 122 are disposed at two ends of the housing 12 in the length direction, a second guiding portion 1211 is disposed on each of the third side wall 121 and the fourth side wall 122, the second guiding portion 1211 in the present embodiment is a protruding pillar, the protruding pillars 1211 on the third side wall 121 and the fourth side wall 122 are located on substantially the same axis, and the axis is parallel to the developing roller 11; the boss 1211 extends from the end of the developing roller 11 in a direction away from the end of the developing roller 11 in the length direction of the developing cartridge 100, the boss 1211 being engageable with a guide groove 231 provided on the image forming apparatus 200 and movable along the guide groove 231, the developing cartridge 100 being rotatable about the boss 1211 as a first movable fulcrum when the boss 1211 moves along the guide groove 231; the third and fourth sidewalls 121 and 122 are further each provided with a rib 1223, the ribs 1223 extending from the third and fourth sidewalls 121 and 122, respectively, in a direction away from the end of the developing roller 11 in the length direction of the developing cartridge 100, the ribs 1223 being contactable with the force transmitting portions 2323 of the swing arms 232 to receive the force from the force transmitting portions 2323 of the swing arms 232, thereby moving the developing cartridge 100 relative to the image forming apparatus 200.
The third side wall 121 is further provided with a storage medium mounting portion 14 and a first guide portion 15, wherein the storage medium mounting portion 14 is fixedly provided on the third side wall 121, the storage medium mounting portion 14 has a first side 141 and a second side 142 opposite to each other, wherein the first side 141 is a side facing the electrical contact point 201 of the image forming apparatus 200 when the developing cartridge 100 is mounted in the image forming apparatus 200, the second side 142 is a side opposite to the first side 141, the first side 141 of the storage medium mounting portion 14 is provided with a storage medium mounting groove 143, the width and length of the storage medium mounting groove 143 are adapted to the width and length of the storage medium 13, and the storage medium 13 is stably fixed on the storage medium mounting groove 143; the storage medium 13 has an electrical contact surface 131, and after the storage medium 13 is mounted on the storage medium mounting groove 143, the electrical contact surface 131 is exposed outside the storage medium mounting groove 143, and the electrical contact surface 131 of the storage medium 13 directly contacts the electrical contact point 201 of the image forming apparatus 200 after the developing cartridge 100 is loaded into the image forming apparatus 200, so that the electrical contact surface 131 of the storage medium 13 is elastically and electrically contacted with the electrical contact point 201 of the image forming apparatus 200; the first guide portion may be disposed at any position on a side of the housing 12 facing away from the electrical contact surface 131, and in this embodiment, the first guide portion 15 is a protrusion disposed on the second side 142 of the storage medium mounting portion 14, and the protrusion 15 extends from the outer surface of the third sidewall 121 in a direction away from the electrical contact surface 131 and contacts the first guide portion 233 of the image forming apparatus 200 when the developing cartridge 100 is mounted in the image forming apparatus 200, and when the developing cartridge 100 moves in the image forming apparatus, the protrusion 15 receives a force of pressing the first guide portion 233, so that the developing cartridge deflects with a mating position of the protrusion 15 and the first guide portion 233 as a fulcrum.
The second top wall 123 is provided at each of both ends with a projection 1231, and after the developing cartridge is loaded into the image forming apparatus 200 through the guide groove 221, the pressing block 22 presses against the projection 1231 to press the developing cartridge 100 against one end of the photosensitive drum 21, thereby restricting the movement of the developing cartridge 100 within the image forming apparatus 200.
As shown in fig. 2 to 5, when the above-described developing cartridge 100 is loaded into the image forming apparatus 200, the developing cartridge 100 is introduced into the guide groove 231 of the image forming apparatus 200 through the boss 1211 provided on the third sidewall 121, and is finally positioned at the closed end of the guide groove 231; accordingly, the boss 1211 on the third sidewall 121 of the developing cartridge 100 is also introduced into the upper guide groove (not shown) of the fourth sidewall (not shown) and positioned at the closed end of the guide groove (not shown). After the developing cartridge 100 is inserted into the accommodating chamber 2 of the image forming apparatus 200, the electrical contact surface 131 of the storage medium 13 is elastically and electrically connected to the electrical contact point 201 on the image forming apparatus 200, the casing 12 is rotatable relative to the image forming apparatus 200 about the developing roller 11, the pressing block 22 on the image forming apparatus 200 presses against the projection 1231 on the second top wall 123 of the developing cartridge 100, the developing cartridge 100 is pressed toward the photosensitive drum 21, so that the developing roller 11 is pressed against the photosensitive drum 21, and at the same time, the projection 1231 restricts upward movement of the developing cartridge 100 by engagement with the pressing block 22, thereby achieving positioning of the developing cartridge 100 within the accommodating chamber 2 of the image forming apparatus 200.
Next, a stable contact process of the developing cartridge 100 with the electric contact points 201 of the developing cartridge 100 and the image forming apparatus 200 during the cleaning and separating process of the image forming apparatus 200 will be described with reference to fig. 2 to 6, and fig. 2 is a schematic view of a partial position state of the developing cartridge 100 and the image forming apparatus 200 before the cleaning and separating process. As shown in fig. 2, a position where the developing roller 11 and the photosensitive drum 21 are in contact with each other to develop the electrostatic latent image, at which the developing cartridge 100 is abutted against the image forming apparatus 200 at this time, is referred to as a first position in this embodiment. Fig. 6 is a schematic view of a partial position state of the developing cartridge 100 and the image forming apparatus 200 after cleaning separation. As shown in fig. 6, the developing roller 11 and the photosensitive drum 21 are spaced apart from each other so that the image forming apparatus 200 cleans the photosensitive drum 21, and a position where the developing cartridge 100 is in a separated state with respect to the image forming apparatus 200 at this time is referred to as a second position in the present embodiment. Referring to fig. 2, before cleaning separation, a lever 202 in the image forming apparatus 200 is deactivated, the developing cartridge 100 is pressed against the photosensitive drum 21 by a pressing force of a pressing block 22, and the developing roller 11 and the photosensitive drum 21 are brought into contact with each other to develop an electrostatic latent image while the developing cartridge 100 is in a first position with respect to the image forming apparatus. When cleaning and separating, in the process of assembling and replacing from the first position to the second position, the deflector rod 202 in the image forming apparatus 200 is abutted against the force receiving portion 2321 of the swing arm 232 and pushes the force receiving portion 2321, the swing arm 232 rotates in the w direction with the rotation shaft supporting portion 2322 as the rotation center under the action of the deflector rod 202, and then the force transmitting portion 2313 of the swing arm 232 is abutted against the convex rib 1223 of the developing cartridge 100 and pushes the convex rib 1223 on the developing cartridge 100, so that the developing cartridge 100 moves in the direction away from the photosensitive drum 21; during the movement of the developing cartridge 100, the developing cartridge 100 rotates with the mating position of the boss 1211 and the guide groove 231 as a fulcrum, so that the bump 15 is abutted against the first guide portion 233, the bump 15 receives the abutment force of the first guide portion 233, the deflected developing cartridge 100 continues to deflect with the fulcrum of the mating position of the boss 1211 and the guide groove 231 as a main supporting point and with the sliding contact point of the bump 15 and the first guide portion 233 as a sub-supporting point, the developing roller 11 continuously moves away from the photosensitive drum 21, and the electric contact surface 131 on the storage medium 13 is always kept in stable electric connection with the electric contact point 201 on the image forming apparatus 200.
Example 2
As shown in fig. 7, the developing cartridge 100 'of embodiment 2 is basically the same as the developing cartridge 100 of embodiment 1 except that a drum assembly 2' detachably mounted to the image forming apparatus is provided, and a corresponding photosensitive drum 21 ', a first guide 223', a guide groove 231 ', a swing arm 232', a pressing block 22 ', and the like are provided on the drum assembly 2', and the developing cartridge 100 'can be assembled with the drum assembly 2' through the guide groove 231 'to form a process cartridge 100' to be reinstalled in the image forming apparatus.
The above-mentioned embodiments are only preferred embodiments of the present invention, and not limiting the scope of the present invention, for example, the first guiding portion is not necessarily disposed on the storage medium mounting portion, and may be disposed at any position on the side of the housing facing away from the electrical contact surface, and the first guiding portion and the case may be separately disposed, and the first guiding portion may be an elastic bump or a hard bump; of course, the box body can be provided with a power part, and the inner wall of the imaging device is used as a supporting point to push the box body to deflect. Many changes may be made in the shape, construction and principle of the invention without departing from the spirit and scope of the invention, and it is therefore intended that all such changes and modifications as fall within the spirit and scope of the invention are deemed to be covered by the present invention.
Claims (9)
1. A developing cartridge detachably mountable to an image forming apparatus and movable between a first position and a second position, said developing cartridge comprising:
a housing provided with a powder bin for accommodating a developer;
a developing roller rotatably mounted on the casing in a length direction of the casing;
the method is characterized in that:
the developing cartridge further includes:
a storage medium fixedly installed at one end of the housing in a length direction and having an electrical contact surface disposed to face an electrical contact point of the image forming apparatus;
a first guide portion provided on a side of the housing facing away from the electrical contact surface, at least a portion of the first guide portion being capable of abutting against a first guide portion in the image forming apparatus when the developing cartridge is moved between a first position and a second position;
second guide parts are respectively arranged at two ends of the length direction of the developing box, and guide grooves which are positioned in the imaging device and matched with the second guide parts are respectively arranged at two sides of the length direction of the developing box after the developing box is arranged in the imaging device;
when the developing cartridge moves between the first position and the second position, the developing cartridge rotates by taking the matching position of the second guide part and the guide groove as a fulcrum, at least one part of the first guide part is abutted against the first guide part, the developing cartridge takes the fulcrum of the matching position of the second guide part and the guide groove as a main supporting point, and the sliding contact point of the first guide part and the first guide part as an auxiliary supporting point deflects, so that the electric contact surface on the storage medium is always electrically connected with the electric contact point on the imaging device.
2. The developing cartridge according to claim 1, wherein:
when the developing cartridge moves between the first position and the second position, the first guide part receives the pressing force of the first guide part to ensure that the electric contact surface is always electrically connected with the electric contact point on the imaging device.
3. The developing cartridge according to claim 1, wherein:
a second guide part is also arranged at the end part of the shell in the length direction and is matched with a guide groove in the imaging equipment;
when the developing cartridge moves between the first position and the second position, the developing cartridge deflects by taking a fulcrum at the matching position of the second guide part and the guide groove as a main supporting point and by taking a matching position of the first guide part and the first guide part as an auxiliary supporting point, so that the electric contact surface is always electrically connected with the electric contact point on the imaging device.
4. The developing cartridge according to claim 1, wherein:
in the first position, the developing roller and the photosensitive drum are in contact with each other to develop the electrostatic latent image, and in the second position, the developing roller and the photosensitive drum are spaced apart from each other.
5. The developing cartridge according to any one of claims 1 to 4, wherein:
the first guide part is a lug arranged on one side of the shell opposite to the electric contact surface.
6. The developing cartridge according to claim 5, wherein:
the first guide part is an elastic lug or a hard lug arranged on one side of the shell opposite to the electric contact surface.
7. The developing cartridge according to claim 5, wherein:
the developing cartridge further includes:
and a storage medium mounting part fixedly arranged at one end of the shell in the length direction, wherein the storage medium is fixedly arranged at one side of the storage medium mounting part.
8. The developing cartridge according to claim 7, wherein:
the storage medium mounting portion has first and second sides in opposite directions, wherein the electrical contact surface is located at the first side and the first guide portion is located at the second side.
9. A process cartridge detachably mountable to an image forming apparatus, characterized in that: a developing cartridge comprising the cartridge according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910033493.1A CN109725520B (en) | 2019-01-14 | 2019-01-14 | Developing box and processing box thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910033493.1A CN109725520B (en) | 2019-01-14 | 2019-01-14 | Developing box and processing box thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109725520A CN109725520A (en) | 2019-05-07 |
| CN109725520B true CN109725520B (en) | 2024-03-12 |
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| CN201910033493.1A Active CN109725520B (en) | 2019-01-14 | 2019-01-14 | Developing box and processing box thereof |
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| CN108345203A (en) * | 2017-01-25 | 2018-07-31 | 佳能株式会社 | Developing apparatus, handle box and imaging device |
| CN208156416U (en) * | 2017-04-28 | 2018-11-27 | 兄弟工业株式会社 | Image forming apparatus |
| CN108398871A (en) * | 2018-04-23 | 2018-08-14 | 珠海联合天润打印耗材有限公司 | Handle box |
| CN209231719U (en) * | 2019-01-14 | 2019-08-09 | 珠海联合天润打印耗材有限公司 | A kind of Delevoping cartridge and its handle box |
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| CN109725520A (en) | 2019-05-07 |
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