发明申请
- 专利标题： Development Roller, Development Device, Image Forming Apparatus, and Method of Manufacturing Development Roller
- 专利标题（中）： 开发辊，开发装置，成像装置和制造开发辊的方法
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申请号： US12388908申请日： 2009-02-19
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公开(公告)号： US20090214271A1公开(公告)日： 2009-08-27
- 发明人: Yoichi YAMADA , Masahiro MAEDA , Junichi SUZUKI , Takatomo FUKUMOTO
- 申请人： Yoichi YAMADA , Masahiro MAEDA , Junichi SUZUKI , Takatomo FUKUMOTO
- 申请人地址： JP Tokyo
- 专利权人： SEIKO EPSON CORPORATION
- 当前专利权人： SEIKO EPSON CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2008-039955 20080221; JP2008-039956 20080221
- 主分类号： G03G15/08
- IPC分类号： G03G15/08
摘要：
A development roller includes a base unit having a base recess and a base projection that are formed in a predetermined area of a circumference surface of the base unit, and a surface layer formed on the circumference surface of the base unit and having on the circumference thereof a recess and a projection formed respectively in accordance with the base recess and the base projection of the base unit. Surface hardness of the projection is higher than surface hardness of the recess.
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