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Color image forming apparatus

A color image and image technology, applied in the field of color image forming devices, can solve the problems of not being reused, can only be discarded, increasing cost, etc., and achieving the effect of a simple structure

Inactive Publication Date: 2006-03-15
SHARP KK
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Therefore, the remaining developer collected from the intermediate transfer medium contains various developer colors, so that it cannot be reused but discarded.
This increases the user's cost, which creates problems in reducing copying costs

Method used

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  • Color image forming apparatus
  • Color image forming apparatus
  • Color image forming apparatus

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Embodiment Construction

[0039]Hereinafter, best modes for carrying out the present invention will be described with reference to the accompanying drawings.

[0040] An example of the present invention is shown in FIG. 1, which is a schematic view (cross-sectional view from behind) showing the overall structure of a color image forming apparatus according to a first embodiment of the present invention.

[0041] As shown in FIG. 1 , the color image forming apparatus 1 of this embodiment includes: a plurality of image forming units or process printing units 20 (20a, 20b, 20c, and 20d), each of which has a The photosensitive drums 21 (21a, 21b, 21c, and 21d) that separate the developer image of the color of the image information (hereinafter referred to as "toner"); the transfer belt 31 as an intermediate transfer medium, and more A developer image contained in a plurality of layers; and a transfer roller 36 as a constituent member of a transfer portion for transferring together the developer image conta...

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Abstract

A color image forming apparatus 1 includes: a multiple number of process printing units 20, each having an photoreceptor drum 21 for bearing a developer image formed with a toner corresponding to a different color of color-separated image information; a transfer belt 31 to which a multiple number of developer images are comprised in layers; and a transfer roller 36 for transferring the developer images that have been comprised in layers on transfer belt 31, all at once, to recording paper, wherein the multiple number of process printing units 20 are arranged along transfer belt 31, and is characterized in that among the developer images to be transferred from the photoreceptor drums 21 of multiple image forming units 20 onto transfer belt 31, the toner for the developer image of the color to be transferred first is specified to produce a base-layer of the color images of information.

Description

technical field [0001] The present invention relates to a color image forming apparatus, and more particularly, to a color image forming apparatus such as a copying machine, a printer, a facsimile machine, etc., which employ electrophotography as an image forming method, wherein an image formed on an image carrier The developer image is transferred onto a transfer medium. Background technique [0002] Recently, in the field of image forming apparatuses, the general trend is a color structure, and with the development of color image forming apparatuses, the number of color image forming apparatuses that can be used is increasing. [0003] Conventionally, in the field of color image forming apparatuses, various types of image processing techniques for matching colors and tones have been used for color balance adjustment since it is necessary to make the colors of reproduced reproductions as faithful as possible to the originals. [0004] As an example of the image processing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/16G03G21/10G03G15/06
CPCG03G15/0131G03G2215/0103
Inventor 岩仓良惠村上进仲野久仁昭
Owner SHARP KK
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