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Image forming apparatus

An image and image carrier technology, applied in the fields of printers, copiers and other image forming devices, can solve problems such as image defects

Active Publication Date: 2009-07-29
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, due to such scratches on the image carrier, image defects (e.g., streaky images) may appear

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0039] figure 1 and figure 2 An image forming apparatus according to a first exemplary embodiment of the present invention is shown. figure 1 shows the overall overview of the device, figure 2 The main parts of the device are shown.

[0040] For example, the image forming device is designed as a color printer. An imager 1 is formed inside an apparatus body 2 of an image forming apparatus, and the imager 1 forms a toner image based on image information and then transfers the toner image onto recording paper. The imager 1 is composed of four image forming units 10Y, 10M, 10C, and 10K and an intermediate transfer unit 20 . The image forming units 10Y, 10M, 10C, and 10K are dedicated to forming toner images of four colors, ie, yellow (Y), magenta (M), cyan (C), and black (K). The intermediate transfer unit 20 temporarily transfers the toner images of the respective colors formed by the respective image forming units 10 (Y, M, C, K) onto the intermediate transfer belt 21 a...

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PUM

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Abstract

The present invention discloses an image forming apparatus, comprising: a plurality of image carriers arranged at intervals along a line and driven to rotate while carrying images; an intermediate transfer belt having an endless shape and arranged to be stretched at multiple a plurality of transfer rollers, which are in contact with the image carrier through the intermediate transfer belt in the first position respectively, and rotate simultaneously so as to transfer the image carrier onto the image carrier; transfer an image of the transfer roller to the intermediate transfer belt; and a moving mechanism that moves a part of the plurality of transfer rollers to a second position where the part of the transfer roller is connected to the A plurality of image carriers are kept apart while the part of the transfer roller is kept in contact with the intermediate transfer belt.

Description

technical field [0001] The present invention relates to printers, copiers, and other image forming apparatuses that use an intermediate transfer system. Background technique [0002] In recent years, for example, devices using an intermediate transfer system, such as image forming devices such as printers using an electrophotographic system or an electrostatic recording system, have been known. [0003] That is, in such an image forming apparatus, as an example, as Figure 13 As shown, four image forming units 100Y, 100M, 100C, and 100K dedicated to forming yellow (Y), magenta (M), cyan (cyan) on an image carrier 101 such as a photosensitive drum are arranged in series. ) (C) and black (K) four color toner images. Yellow, magenta, cyan, and black toner images formed by the respective image forming units 100 (Y, M, C, K) are temporarily (primarily) transferred onto the rotating endless intermediate transfer belt 201 . The intermediate transfer belt 201 is provided so as to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/16
CPCG03G2215/0119G03G15/0131G03G2215/1614G03G2215/0193G03G15/1605G03G15/14
Inventor 吉冈智章
Owner FUJIFILM BUSINESS INNOVATION CORP