Invention Grant
US09176456B2 Image forming unit and image forming apparatus comprising first process roller and second process roller
有权
图像形成单元和图像形成装置，包括第一处理辊和第二处理辊
- Patent Title: Image forming unit and image forming apparatus comprising first process roller and second process roller
- Patent Title (中): 图像形成单元和图像形成装置，包括第一处理辊和第二处理辊
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Application No.: US14447280Application Date: 2014-07-30
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Publication No.: US09176456B2Publication Date: 2015-11-03
- Inventor: Hirofumi Tsuji , Mitsuhiro Goda
- Applicant: KYOCERA Document Solutions Inc.
- Applicant Address: JO Osaka
- Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
- Current Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
- Current Assignee Address: JO Osaka
- Agency: Knobbe, Martens, Olson & Bear LLP
- Priority: JP2013-166071 20130809; JP2013-189390 20130912
- Main IPC: G03G15/02
- IPC: G03G15/02 ; G03G21/00
Abstract:
An image forming unit includes a charging roller, a cleaning roller, a bush member, and a shifting mechanism. A first journal portion of the bush member allows the charging roller to shift in a direction of abutment against and separation from a photosensitive drum and journals the charging roller with play in the direction of abutment and separation when the charging roller is free from nip with the photosensitive drum. When the charging roller forms a nip with the photosensitive drum by the movement of the bush member actuated by the shifting mechanism, the first journal portion journals the charging roller so that the charging roller is pressed by the photosensitive drum to shift to a position within the first journal portion close to the cleaning roller.
Public/Granted literature
- US20150043940A1 IMAGE FORMING UNIT AND IMAGE FORMING APPARATUS Public/Granted day:2015-02-12
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