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Image forming apparatus

A technology for image and mounting parts, applied to electrical recording technology using charge graphics, equipment using electrical recording technology using charge graphics, and electrography, etc., can solve problems such as detachment of locking parts and inability to stabilize the positioning of photosensitive drum units

Active Publication Date: 2017-12-12
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

An image forming apparatus includes a drum unit, a process frame, a lock member and an intermediate transferring unit. The drum unit rotatably supports a rotating shaft of a photosensitive drum. The process frame has an attachment part to which the drum unit is attached. The lock member positions the drum unit to the attachment part. The intermediate transferring unit is attached to the process frame after the drum unit is attached. The lock member has a supporting part, an engagement part and a restriction part. Though the supporting part, an end of the rotating shaft is passed. The engagement part is engaged with the process frame between the process frame and the intermediate transferring unit. The restriction part interferes with the intermediate transferring unit between the engagement part and the intermediate transferring unit to prevent the engagement part from being detached 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 Applications(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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