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image forming device

An image and application device technology, which is applied in the direction of electrical recording technology using charge graphics, equipment and instruments using electrical recording technology using charge graphics, to achieve the effect of suppressing the reduction of charging performance

Active Publication Date: 2022-04-05
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The friction moment between the belt and the drum is also transmitted to the scraper edge of the cleaning blade that removes the toner on the surface of the photosensitive drum. Although it is not as high as that between the belt and the drum, friction also occurs between the scraper and the drum. force

Method used

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Examples

Experimental program
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Embodiment Construction

[0029] Embodiments of the present invention will be described below with reference to the drawings. figure 1 It is a schematic cross-sectional view of an image forming apparatus according to an embodiment of the present invention, and here shows a tandem color printer. In the main body of the color printer 100, from the upstream side of the transport direction (at figure 1 The left side in the center) is sequentially arranged with four image forming parts Pa, Pb, Pc, and Pd. These image forming parts Pa to Pd are arranged to correspond to images of four different colors (cyan, magenta, yellow, and black), and sequentially form cyan, magenta, yellow, and black through the processes of charging, exposure, development, and transfer, respectively. black image.

[0030] Photosensitive drums 1 a , 1 b , 1 c , and 1 d on which visible images (toner images) of respective colors are carried are arranged in these image forming portions Pa to Pd, respectively. The photosensitive drums...

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PUM

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Abstract

The present invention relates to an image forming apparatus including a plurality of image forming units, an intermediate transfer belt having an elastic layer, a plurality of primary transfer members, a proximity and separation mechanism, a secondary transfer member, a driving device, and a voltage applying device. and control department. The close-to-separation mechanism can switch between a full-color pressing state and a full-color separation state, wherein, the full-color pressing state is that all the primary transfer members are pressure-bonded to the image carrier through an intermediate transfer belt; the full-color separation state is It is to separate all the primary transfer members from the intermediate transfer belt. The control unit can execute the friction coefficient reduction mode after the image carrier and the intermediate transfer belt are driven from the full-color separation state to the full-color pressing state when the power is turned on for the first time. , the toner is discharged from the developing device to the image carrier to reduce the surface friction coefficient of the image carrier and the intermediate transfer belt.

Description

technical field [0001] The present invention relates to an electrophotographic image forming device such as a copier, a printer, a facsimile machine, etc., and particularly relates to a method for transferring a toner image formed on an image carrier to an intermediate transfer belt, and then transferring the toner image to an intermediate transfer belt. An intermediate transfer type image forming device in which an agent image is secondarily transferred from an intermediate transfer belt to a recording medium. Background technique [0002] Conventionally, there is known an intermediate transfer type image forming apparatus including: an endless intermediate transfer belt rotating in a predetermined direction; and a plurality of image forming sections provided along the intermediate transfer belt; The photosensitive drums (image carriers) in the forming section superimpose the toner images of the respective colors in order, and after primary transfer to the intermediate tran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/01G03G15/16G03G5/06
CPCG03G15/0189G03G15/1605G03G15/162G03G15/1615G03G15/161G03G15/163G03G5/06G03G15/0136G03G2215/1623G03G15/5004G03G21/0011G03G15/5008
Inventor 猪谷广佳木村圭吾
Owner KYOCERA DOCUMENT SOLUTIONS INC
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