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Cartridge

A photoreceptor and housing technology, which is applied in optics, instruments, and electrical recording process equipment using charge patterns, etc., can solve problems such as bending and deformation of positioning rollers and inability to transport paper stably, and achieve stable paper and stable transport. Effect

Active Publication Date: 2015-01-21
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the small outer diameter part of the positioning roller supported by the bearing body is subjected to force, so that the positioning roller may be bent and deformed.
In this case, the paper may not be fed stably

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] 1. Overview of the photoreceptor cartridge

[0037] Such as figure 1 , figure 2 , Figure 5 As shown, the photoreceptor cartridge 1 has: a drum frame 2 as an example of a casing; a photoreceptor drum 4 as an example of a photoreceptor; a corona (scorotron) type charger 5; a transfer roller 6; a pair of bearings body 7; and cassette-side registration rollers 8 as an example of paper conveying rollers.

[0038] In the following description, when referring to the direction of the photoreceptor cartridge 1 , the state where the photoreceptor cartridge 1 is placed horizontally is used as a reference for up and down. which is, figure 1 The top of the paper is the top, and the bottom of the paper is the bottom. In addition, when the photoreceptor cartridge 1 is viewed from the front, it is used as a standard of left and right. which is, figure 1 The near front side of the paper surface is the left side, and the deep side of the paper surface is the right side. The lef...

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PUM

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Abstract

A cartridge may include a conveyor roller extending along a rotational axis and a bearing member for rotatably supporting the conveyor roller. The conveyor roller may include a larger-diameter portion for conveying a sheet, and a smaller-diameter portion. The bearing member may rotatably support the smaller-diameter portion of the conveyor roller, and engage the housing. In one or more arrangements, the entire smaller-diameter portion of the conveyor roller may be located at a more outward position, relative to a midpoint of the larger-diameter portion, than a portion of the bearing member supporting the smaller-diameter portion of the conveyor roller.

Description

technical field [0001] The present invention relates to a photoreceptor cartridge capable of being mounted in and detached from an apparatus body of an image forming apparatus employing an electrophotographic method. Background technique [0002] In an image forming apparatus, there is known a photoreceptor cartridge detachably attached to an apparatus main body. Such a photoreceptor cartridge can accommodate a developing cartridge containing toner, and can be attached to or detached from the apparatus main body in a state where the developing cartridge is accommodated. [0003] When the image forming operation is performed, the paper needs to be conveyed to the photoreceptor, so a pair of registration rollers for conveying the paper are provided in the main body of the device. There is known an image forming apparatus in which one of a pair of registration rollers is located on the photoreceptor cartridge and the other is located on the apparatus main body in order not to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/00
CPCG03G21/1661G03G21/1671G03G21/1814G03G15/6558G03G21/1803
Inventor 石川悟清水圭太
Owner BROTHER KOGYO KK