CN211015018U - Developing box - Google Patents
Developing box Download PDFInfo
- Publication number
- CN211015018U CN211015018U CN201922034590.0U CN201922034590U CN211015018U CN 211015018 U CN211015018 U CN 211015018U CN 201922034590 U CN201922034590 U CN 201922034590U CN 211015018 U CN211015018 U CN 211015018U
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- CN
- China
- Prior art keywords
- developing roller
- roller shaft
- developing
- housing
- shaft supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Dry Development In Electrophotography (AREA)
Abstract
The utility model discloses a developing box, include: a housing; a developer accommodating chamber; a developing roller having a developing roller shaft and an elastic resin layer covering the developing roller shaft, rotatably supported by the housing; a powder feeding roller rotatably supported by the housing for feeding the developer to the developing roller; an input gear for receiving a driving force from the electronic image forming apparatus to rotate; a developing roller gear disposed at an axial end of the developing roller and capable of receiving a driving force of the input gear to drive the developing roller to rotate, a detected unit capable of receiving a force of the input gear to rotate and capable of being detected by the electronic image forming apparatus, a developing roller shaft supporting portion formed on the housing and configured to support a bearing portion of the developing roller shaft, the developing roller shaft supporting portion being integrally formed with the housing. The bearing part for supporting the developing roller shaft is integrally formed on the shell, so that the production and manufacturing cost of the developing box is reduced.
Description
Technical Field
The utility model relates to an electronic imaging field especially relates to a detachable installs the development box in electronic imaging device.
Background
The prior art discloses a developing cartridge, which is detachably mounted in an electrophotographic apparatus, the developing cartridge is detachably mounted in the electrophotographic apparatus, the developing cartridge having a housing and a grip for an operator to grip, a developing roller located at a front side of the developing cartridge and a powder feeding roller for feeding a developer to the developing roller, the developing cartridge further comprising an input gear for receiving a rotational driving force of the electrophotographic apparatus, the developing roller comprises a developing roller shaft made of steel, a developing roller gear is sleeved on the developing roller shaft to drive the developing roller to rotate, the developing roller gear is meshed with the input gear to receive the rotary driving force, the developing roller shaft is supported by a bearing arranged on the shell, because of the manufacturing tolerances of the bearing and the housing, and the mounting tolerances of the bearing on the housing, this is disadvantageous in that accurate positioning of the developing roller shaft affects engagement of the developing roller gear with the input gear.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a developing box can reduce developing box production cost and reduce the size of developing box electrically conductive side, in order to reach above-mentioned technological effect, the utility model discloses a realize through following technical scheme:
a developing cartridge detachably mountable to an electrophotographic apparatus, comprising:
a housing;
a developer accommodating chamber;
a developing roller having a developing roller shaft and an elastic resin layer covering the developing roller shaft, rotatably supported by the housing;
a powder feeding roller rotatably supported by the housing for feeding the developer to the developing roller;
an input gear for receiving a driving force from the electronic image forming apparatus to rotate;
a developing roller gear provided at an axial end of the developing roller and adapted to receive a driving force of the input gear to drive the developing roller to rotate,
a detected unit which can receive the force of the input gear to rotate and can be detected by the electronic imaging device,
a developing roller shaft supporting portion is formed on the housing, the developing roller shaft supporting portion being configured to support a bearing portion of the developing roller shaft, the developing roller shaft supporting portion being integrally formed with the housing.
Further, the housing has an accommodating portion accommodating the developer, a pair of side walls provided oppositely in a longitudinal direction of the accommodating portion, and the developing roller shaft supporting portion is integrally provided on one of the pair of side walls.
Further, the developing roller shaft supporting portion has a circular through hole, and the developing roller shaft passes through the circular through hole and is supported rotatably by the developing roller shaft supporting portion.
Further, the developing roller gear is provided separately from the developing roller shaft supporting portion.
After the technical scheme is adopted, the utility model discloses developing cartridge adopts the bearing part as the developing roller axle with casing integrated into one piece's developing roller axle supporting part, has reduced developing cartridge's production cost of manufacture, has avoided installing the installation tolerance on the casing with bearing part simultaneously because developing roller axle supporting part and casing integrated into one piece, has increased developing roller bearing's processing preparation precision.
Drawings
Fig. 1 is a schematic perspective view of a developing cartridge according to the present invention;
fig. 2 is a schematic perspective view of another perspective view of the developing cartridge of the present invention;
fig. 3 is a schematic view of the partially exploded structure of the driving side of the developing cartridge according to the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-3, the developing cartridge of the present invention comprises a casing 1, a developing roller 2 located at the front end of the casing 1, a handle 10 located at the rear end of the casing 1 and opposite to the developing roller 2, wherein the developing roller 2 comprises a steel developing roller shaft 2a and an elastic resin layer covering the developing roller shaft 2a for developing an electrostatic latent image on a photosensitive drum, and an operator can hold the handle 10 with a hand to install the developing cartridge into a drum assembly (not shown) and into an electrophotographic apparatus along with the drum assembly. The developing cartridge has a driving end 8 and a conductive end 9, and the driving end 8 is provided with an input gear 5, a developing roller gear 6, a powder feeding roller gear 7, and a gear cover 3. The input gear 5 is used for being meshed with a driving head in a receiving electronic imaging device to receive driving force, the developing roller gear 6 is arranged at the axial end of the developing roller 2 and is meshed with the input gear 5 to receive the driving force of the input gear 5 and drive the developing roller 2 to rotate, the powder feeding roller gear 7 is meshed with the input gear 5 to receive the driving force of the input gear 5 and drive the powder feeding roller to rotate, and the gear protecting cover 3 covers the gears. The conductive side is provided with an electrode member 11 electrically connecting the developing roller 2 and an electric output member (not shown in the figure) in the electrophotographic apparatus, and a detected unit 12 detectable by the electrophotographic apparatus, the detected unit 12 being rotatable upon receiving the driving force of the input gear 5 and detectable by the electrophotographic apparatus, which is detectable by the electrophotographic apparatus to identify whether the developing cartridge is new unused or used and page yield information of the developing cartridge. A developing roller shaft supporting portion 1b is formed on the housing 1, the developing roller shaft supporting portion 1b being configured as a bearing portion that supports a developing roller shaft 2a, the developing roller shaft supporting portion having a circular through hole, the developing roller shaft passing through the circular through hole and being rotatably supported by the developing roller shaft supporting portion, the developing roller shaft supporting portion 1b being integrally formed with the housing 1. Preferably, the casing 1 is configured as one accommodating portion that can accommodate the developer, and has a pair of side walls disposed oppositely in the longitudinal direction of the casing 1, and the developing roller shaft supporting portion 1b is integrally provided on one of the pair of side walls, preferably on the side wall on the driving side. Preferably, the developing roller shaft supporting portion 1b is configured as a sealing structure having a circular through hole through which the developing roller shaft 2a passes and is supported, and the outer surrounding portion 1a for surrounding the circular through hole. Preferably, the developing roller gear 6 is provided separately from the developing roller shaft supporting portion 1b to reduce resistance when the developing roller gear rotates. At the conductive end of the developing cartridge, a support member detachably attached to the casing 1 is provided, which supports the shaft portion of the developing roller shaft 2a near the conductive side. Specifically, when the developing roller 2 is mounted, the developing roller shaft 2a is first passed through the supporting portion of the housing 1, then the developing roller shaft is put into the opening portion on the opposite side of the driving side of the housing 1, and then the hole on the supporting member is sleeved on the developing roller shaft 2a and the supporting member is mounted on the conductive side of the housing 1.
The utility model discloses in, the utility model discloses developing cartridge adopts the bearing part as the developing roller axle with casing integrated into one piece's developing roller axle supporting part, has reduced developing cartridge's production cost of manufacture, has avoided installing the installation tolerance on the casing with bearing part simultaneously because developing roller axle supporting part and casing integrated into one piece, has increased developing roller bearing's processing preparation precision.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (4)
1. A developing cartridge detachably mountable to an electrophotographic apparatus, comprising:
a housing having a developer accommodating chamber;
a developing roller having a developing roller shaft and an elastic resin layer covering the developing roller shaft, rotatably supported by the housing;
a powder feeding roller rotatably supported by the housing for feeding the developer to the developing roller;
an input gear for receiving a driving force from the electronic image forming apparatus to rotate;
a developing roller gear arranged at the axial end of the developing roller and used for receiving the driving force of the input gear to drive the developing roller to rotate,
a detection unit for receiving the force of the input gear to rotate and being detected by the electronic image forming apparatus, wherein a developing roller shaft supporting part is formed on the housing, the developing roller shaft supporting part being configured to support a bearing part of the developing roller shaft, the developing roller shaft supporting part being integrally formed with the housing.
2. A developing cartridge according to claim 1, wherein said casing has an accommodating portion accommodating the developer, a pair of side walls provided oppositely in a longitudinal direction of said accommodating portion, and said developing roller shaft supporting portion is provided integrally on one of said pair of side walls.
3. A developing cartridge according to claim 1, wherein said developing roller shaft supporting portion has a circular through hole, and said developing roller shaft passes through said circular through hole and is rotatably supported by said developing roller shaft supporting portion.
4. A developing cartridge according to claim 1, wherein said developing roller gear is provided spaced apart from said developing roller shaft supporting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922034590.0U CN211015018U (en) | 2019-11-22 | 2019-11-22 | Developing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922034590.0U CN211015018U (en) | 2019-11-22 | 2019-11-22 | Developing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211015018U true CN211015018U (en) | 2020-07-14 |
Family
ID=71479240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922034590.0U Active CN211015018U (en) | 2019-11-22 | 2019-11-22 | Developing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211015018U (en) |
-
2019
- 2019-11-22 CN CN201922034590.0U patent/CN211015018U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |