发明授权
- 专利标题： Charging apparatus and electrophotographic apparatus
- 专利标题（中）： 充电设备和电子照相设备
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申请号： US767802申请日： 1996-12-17
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公开(公告)号： US5724632A公开(公告)日： 1998-03-03
- 发明人: Fumihiro Arahira , Shuichi Aita , Tsutomu Kukimoto , Kiyoshi Mizoe , Yoshifumi Hano
- 申请人： Fumihiro Arahira , Shuichi Aita , Tsutomu Kukimoto , Kiyoshi Mizoe , Yoshifumi Hano
- 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： JPX7-347539 19951218; JPX7-347541 19951218
- 主分类号： G03G15/02
- IPC分类号： G03G15/02
摘要：
A charging apparatus or an electrophotographic apparatus includes an electrophotographic photosensitive member including a photosensitive layer provided on a conductive supporting member, and a charging member including magnetic particles, disposed to be in contact with the electrophotographic photosensitive member, for charging the electrophotographic photosensitive member when a voltage is applied to the charging member. The layer of the electrophotographic photosensitive member most separated from the conductive supporting member has a volume resistivity between 10.sup.8 .OMEGA..cm and 10.sup.15 .OMEGA..cm, and the magnetic particles have a hygroscopic property such that the ratio H/L of the maximum value H to the minimum value L of the amount of water contained within the particles is at least 1 and less than 4.
公开/授权文献
- US4689906A Display frame for mounting vertical surface 公开/授权日：1987-09-01