Invention Grant
- Patent Title: Belt unit and image forming device equipped therewith
- Patent Title (中): 皮带单元和配备的图像形成装置
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Application No.: US12610637Application Date: 2009-11-02
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Publication No.: US08346139B2Publication Date: 2013-01-01
- Inventor: Masaya Okamoto
- Applicant: Masaya Okamoto
- Applicant Address: JP Tokyo
- Assignee: Fuji Xerox Co., Ltd.
- Current Assignee: Fuji Xerox Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2009-137201 20090608
- Main IPC: G03G15/01
- IPC: G03G15/01

Abstract:
There is provided a belt unit including: a fixed frame at which a transfer roller is provided; plural fixed side supporting rollers provided at the fixed frame; a movable frame that is swingably mounted to the fixed frame, and at which plural transfer rollers are provided; a movable side supporting roller provided at the movable frame; and an endless belt stretched around the fixed side supporting rollers and the movable side supporting roller, and contacting the transfer roller provided at the fixed frame and the transfer rollers supported at the movable frame, and contacting plural photoreceptor drums, wherein a swinging center of the movable frame is a center of belt portions at both sides of the swinging center, and in a monochrome mode, the movable frame is swung and moves the belt away from the photoreceptor drums other than the photoreceptor drum that is used in the monochrome mode.
Public/Granted literature
- US20100310283A1 BELT UNIT AND IMAGE FORMING DEVICE EQUIPPED THEREWITH Public/Granted day:2010-12-09
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