Invention Grant
- Patent Title: Electrophotographic photosensitive member and electrophotographic apparatus
- Patent Title (中): 电子照相感光构件和电子照相设备
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Application No.: US12943977Application Date: 2010-11-11
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Publication No.: US08465891B2Publication Date: 2013-06-18
- Inventor: Tomohito Ozawa , Kazuyoshi Akiyama , Yuu Nishimura , Daisuke Tazawa
- Applicant: Tomohito Ozawa , Kazuyoshi Akiyama , Yuu Nishimura , Daisuke Tazawa
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2009-262397 20091117; JP2010-248722 20101105
- Main IPC: G03G5/00
- IPC: G03G5/00

Abstract:
An electrophotographic photosensitive member includes a photoconductive layer, an intermediate layer, and a surface layer. When Si+C atom density in the surface layer is represented by DS×1022 atoms/cm3, the DS is 6.60 or more, and when the maximal value of H/(Si+H) in a distribution of hydrogen quantity in the photoconductive layer in a layer thickness direction is represented by HPmax, the average value of the H/(Si+H) in the second photoconductive region is represented by HP2, the DS and the HP2 satisfy the following expression (1) and the DS and the HPmax satisfy the following expression (2). HP2≧0.07×DS−0.38 Expression (1) HPmax≦0.04×DS+0.60 Expression (2)
Public/Granted literature
- US20110117484A1 ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER AND ELECTROPHOTOGRAPHIC APPARATUS Public/Granted day:2011-05-19
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