发明授权
- 专利标题: Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
- 专利标题(中): 电子照相感光构件,处理盒和电子照相设备
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申请号: US14418868申请日: 2013-08-29
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公开(公告)号: US09372419B2公开(公告)日: 2016-06-21
- 发明人: Haruyuki Tsuji , Atsushi Fujii , Kazuhisa Shida , Nobuhiro Nakamura , Hideaki Matsuoka , Hiroyuki Tomono
- 申请人: CANON KABUSHIKI KAISHA
- 申请人地址: JP 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: JP Tokyo
- 代理机构: Fitzpatrick, Cella, Harper and Scinto
- 优先权: JP2012-189532 20120830; JP2013-077617 20130403; JP2013-177141 20130828
- 国际申请: PCT/JP2013/073860 WO 20130829
- 国际公布: WO2014/034960 WO 20140306
- 主分类号: G03G15/00
- IPC分类号: G03G15/00 ; G03G5/08 ; G03G5/087 ; G03G5/10 ; G03G5/14
摘要:
Provided are an electrophotographic photosensitive member in which a residual potential hardly increases at the time of image formation, a pattern memory hardly occurs, and the crack of a conductive layer hardly occurs, and a process cartridge and an electrophotographic apparatus each including the electrophotographic photosensitive member. To this end, the conductive layer of the electrophotographic photosensitive member contains a titanium oxide particle coated with tin oxide doped with phosphorus, a tin oxide particle doped with phosphorus, and a binding material, and when a total volume of the conductive layer is represented by VT, a total volume of the titanium oxide particle coated with tin oxide doped with phosphorus in the conductive layer is represented by V1P, and a total volume of the tin oxide particle doped with phosphorus in the conductive layer is represented by V2P, the VT, the V1P, and the V2P satisfy the following expressions: 2≦{(V2P/VT)/(V1P/VT)}×100≦25 and 15≦{(V1P/VT)+(V2P/VT)}×100≦45.