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image forming device

A technology for image and installation parts, which is applied to the electrical recording process using the charge pattern, equipment and instruments for the electric recording process using the charge pattern, and can solve problems such as the inability to stably position the photosensitive drum unit and the detachment of the locking part.

Active Publication Date: 2021-04-06
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the locking member is easily detached from the frame, thereby causing a problem that the photosensitive drum unit cannot be stably positioned.

Method used

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Examples

Experimental program
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Embodiment Construction

[0019] Next, an image forming apparatus according to an embodiment of the present invention will be described with reference to the drawings.

[0020] First, refer to figure 1 The overall configuration of the color printer 1 as an image forming apparatus will be described. figure 1 is a schematic diagram showing the internal structure of a color printer. In the description below, let figure 1 The left side of the paper is the front side (front side) of the color printer 1, and the left and right directions are based on the direction in which the color printer 1 is viewed from the front side.

[0021] The main body 2 of the color printer 1 is provided with: a paper feeding cassette 3 for storing paper P; an image forming unit 4 for forming a full-color toner image on the paper; and a fixing device 5 for fixing the toner image on the paper. paper P; and a paper discharge device 7 that discharges the paper P on which the toner image is fixed to a paper discharge tray 6 . Pape...

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PUM

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Abstract

The present invention provides an image forming apparatus having a photosensitive drum unit, a process frame, a locking member, and an intermediate transfer unit. The photosensitive drum unit rotatably supports a rotation shaft of the photosensitive drum. A mounting portion for the photosensitive drum unit is provided on the processing frame. The locking member positions the photosensitive drum unit at the mounting portion. The intermediate transfer unit is mounted on the process frame after the photosensitive drum unit is mounted. The locking member has a supporting portion, an engaging portion, and a restricting portion. One end of the rotating shaft is inserted through the support portion. The engaging portion is engaged with the process frame between the process frame and the intermediate transfer unit. The restricting part is between the engaging part and the intermediate transfer unit, interferes with the intermediate transfer unit, and restricts the engaging part from detaching from the process frame.

Description

technical field [0001] The present invention relates to an image forming apparatus having a process unit in which a photosensitive drum unit supporting a photosensitive drum is detachably provided. Background technique [0002] In image forming apparatuses such as printers and copiers, there is a structure in which a processing unit in which a photosensitive drum unit, a developing unit, and an intermediate transfer unit are integrated is detachably mounted on the main body of the apparatus, wherein the photosensitive drum unit The photosensitive drum is rotatably supported, the developing device is supported by the developing unit, and the intermediate transfer belt is rotatably supported by the intermediate transfer unit. [0003] There is an image forming apparatus having a process unit configured to support a photosensitive drum unit, a developing unit, and an intermediate transfer unit positioned between two connecting members. Positioning protrusions are formed in eac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G21/16
CPCG03G21/1619G03G21/1671G03G21/168G03G2221/1654G03G2221/1869G03G15/1605
Inventor 三村大辅松本大梦
Owner KYOCERA DOCUMENT SOLUTIONS INC
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