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Small size imaging cartridge and imaging device

An imaging processing and imaging device technology, which is applied in the direction of electric recording technology, instruments, optics, etc. using charge patterns, can solve the problems such as the decrease of the positioning accuracy of the photosensitive drum and the developing roller, and achieve the effect of a simple structure.

Inactive Publication Date: 2004-05-12
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As such various types of accuracy variations accumulate, the positioning accuracy of the photosensitive drum and developing roller decreases

Method used

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  • Small size imaging cartridge and imaging device
  • Small size imaging cartridge and imaging device
  • Small size imaging cartridge and imaging device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0034] figure 1 It is an explanatory drawing showing the structure of an image forming apparatus using the image forming process cartridge of the present invention.

[0035] The imaging device includes a casing 1 on which an image reading device 2 for reading document images is installed. The image forming process cartridge 3 is mounted inside the casing 1 in such a manner that the image forming process cartridge 3 can be removed from the casing 1. As shown in FIG. A paper passage 4 is arranged below the image forming process cartridge 3, and the paper passage 4 is used to guide printed paper on which document images will be printed.

[0036] The image reading device 2 includes an image reading element 5 and a document tray 6 , and the document tray 6 is used to provide the image reading element 5 with a page of documents. The document tray 6 can move around th...

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PUM

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Abstract

A method of assembling a process cartridge which includes a photosensitive-body case having a photosensitive drum stored therein and a development-body case having a development roller stored therein is proposed. The method includes the steps of positioning a rotation center of the photosensitive drum relative to a rotation center of the development roller by use of a fixture, and fixing relative positions of the photosensitive-body case and the development-body case while the fixture is in place.

Description

technical field [0001] The present invention relates to an image forming apparatus and an image forming process cartridge used in the image forming apparatus. More particularly, the present invention relates to an image forming process cartridge comprising a photosensitive cartridge containing a photosensitive drum and a developing cartridge containing a developing roller; and also relates to a method of manufacturing such an image forming process cartridge as described above. Further, the present invention relates to a shutter mechanism for the above-mentioned image forming process cartridge and a method for opening such a shutter. Background technique [0002] In a related image forming apparatus such as a copying machine or a printer, the photosensitive drum and the developing roller are housed in the same cartridge, so that the photosensitive drum and the developing roller are replaced together by simply replacing the cartridge. The image forming process cartridges of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G21/16
CPCG03G21/1821G03G2221/1654G03G21/16G03G2221/1876G03G21/1647
Inventor 细川浩山中哲夫米川昌弘相泽奈保子
Owner RICOH KK