发明授权
- 专利标题: Developing apparatus having a coated developing roller
- 专利标题(中): 具有涂布显影辊的显影装置
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申请号: US783184申请日: 1991-10-28
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公开(公告)号: US5202729A公开(公告)日: 1993-04-13
- 发明人: Toshio Miyamoto , Yasushi Sato , Akihiko Takeuchi , Hiroshi Sasame , Katsuhiko Nishimura , Hiroto Hasegawa , Hideyuki Yano , Tatsunori Ishiyama , Hideo Nanataki , Harumi Kugoh
- 申请人: Toshio Miyamoto , Yasushi Sato , Akihiko Takeuchi , Hiroshi Sasame , Katsuhiko Nishimura , Hiroto Hasegawa , Hideyuki Yano , Tatsunori Ishiyama , Hideo Nanataki , Harumi Kugoh
- 申请人地址: JPX Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX2-289343 19901026; JPX3-026174 19910220
- 主分类号: G03G15/09
- IPC分类号: G03G15/09
摘要:
A developing apparatus having a container for containing a one component developer, and a rotatable developing roller disposed facing an image bearing member to carry developer from the container to a development zone where it is supplied to an electrostatic latent image carried on an image bearing member. The developing roller includes a metal base member and a resin coating layer thereon in which fine conductive particles are dispersed. The developing roller has a surface including an end region adjacent an end of the roller, and an intermediate region. In the end region, the base member is not roughened and the resin layer is not provided. In the intermediate region, inside the end region, the base member is roughened and is coated with the resin layer. A sealing member is provided for preventing leakage of the developer from the container at the end of the developing roller, the sealing member being faced to the end region of the developing roller.
公开/授权文献
- US5942564A Hydroxyphenyl-s-triazines 公开/授权日:1999-08-24