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image forming device

A technology of image and relative configuration, which is applied to the electrical recording process using charge graphics, equipment for the electrical recording process using charge graphics, and electrical recording technology, which can solve the problem of inability to press the developing roller and the inability to realize the positioning of the developing roller and the photosensitive drum Accuracy and other issues, to achieve the effect of miniaturization and suppression of contamination by developer

Active Publication Date: 2016-01-20
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the image forming apparatus described above, since the upward pressing force of the first pressing mechanism is transmitted to the developing roller through the rotation of the new toner box, there is a problem that the developing roller cannot be stably pressed against the photoreceptor, and sufficient pressure cannot be realized. Positioning accuracy of developing roller and photosensitive drum

Method used

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Examples

Experimental program
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Embodiment Construction

[0035] 1. The overall structure of the color printer

[0036] figure 1 As shown, a color printer 1 as an example of an image forming apparatus is a horizontal type intermediate transfer color printer.

[0037] In addition, the color printer 1 is a multifunctional machine that integrally includes a main body casing 2 as an example of a device main body, and a flatbed scanner 3 provided on the upper side of the main body casing 2 to read image information of a document.

[0038] The color printer 1 has a paper feeding unit 4 for feeding paper P and an image forming unit 5 for forming an image on the fed paper P in a main body casing 2 .

[0039] (1) Main shell

[0040] like figure 1 as well as figure 2 As shown, the main body casing 2 is formed in a box shape for accommodating the paper feeding unit 4 and the image forming unit 5 . A main body opening 8 is formed on one side wall of the main body case 2, and the front cover 6 is arranged to be able to swing (move) to a clo...

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PUM

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Abstract

An image forming apparatus capable of compactly accommodating a waste developer container and improving the relative positioning accuracy of a developing roller and a photosensitive drum. In the color printer (1), a cartridge frame (25) accommodating a developer (24) is disposed on the opposite side of a photosensitive drum (21) to a developing roller (26). And, be provided with coil spring (109) between box frame (25) and developing device (24), with the developing roller (26) that developing device (24) in the box frame (25) has toward photosensitive drum ( 21) Apply force.

Description

technical field [0001] The present invention relates to an image forming apparatus using electrophotography. Background technique [0002] There is known a developing cartridge including: a process cartridge including a photoreceptor and a developing device; and a toner tank unit attached to the process cartridge, and an image forming apparatus including the developing cartridge. [0003] In this image forming apparatus, the toner box unit has: a new toner box containing unused toner supplied to the developing device and having a developing side rotation shaft; and a waste toner box containing waste toner. For the toner, the developing device is arranged adjacent to one side of the new toner box, and the first pressing mechanism provided in the device main body is arranged on the other side of the new toner box. [0004] Furthermore, in the image forming apparatus described above, the first pressing mechanism presses upward the lower portion of the other side of the new ton...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/08G03G15/00G03G21/00
CPCG03G15/0813G03G21/10G03G21/1676G03G15/0872G03G21/007G03G21/169
Inventor 佐藤正吾森敬贵宗田真
Owner BROTHER KOGYO KK
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