发明申请
- 专利标题: Image forming apparatus
- 专利标题(中): 图像形成装置
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申请号: US11783979申请日: 2007-04-13
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公开(公告)号: US20080080905A1公开(公告)日: 2008-04-03
- 发明人: Makoto Hirota , Takashi Yamamuro , Shigeru Inaba , Shota Oba , Akihiko Noda , Yoshifumi Ozaki
- 申请人: Makoto Hirota , Takashi Yamamuro , Shigeru Inaba , Shota Oba , Akihiko Noda , Yoshifumi Ozaki
- 专利权人: Fuij Xerox Co., Ltd.
- 当前专利权人: Fuij Xerox Co., Ltd.
- 优先权: JP2006-264320 20060928
- 主分类号: G03G15/08
- IPC分类号: G03G15/08 ; G03G15/09
摘要:
An image forming apparatus includes an image carrier that carries a latent image; a charging device that charges the image carrier with a charging voltage having an AC component; and a roller that carries a developer to be supplied to the image carrier in a developing position, with a surface of the roller provided with axially-formed grooves, the frequency of the AC component of the charging voltage and the number of the grooves provided on the roller being set so that non-uniformity in density of an output image becomes invisible, caused by interference between the frequency of the AC component of the charging voltage and the frequency at which the grooves pass the developing position.
公开/授权文献
- US07702264B2 Image forming apparatus 公开/授权日:2010-04-20