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.: US12949053Application Date: 2010-11-18
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Publication No.: US08440377B2Publication Date: 2013-05-14
- Inventor: Tomohito Ozawa , Motoya Yamada , Kazuyoshi Akiyama , Daisuke Tazawa
- Applicant: Tomohito Ozawa , Motoya Yamada , Kazuyoshi Akiyama , 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: JP2009-269346 20091126; JP2010-254811 20101115
- Main IPC: G03G5/043
- IPC: G03G5/043

Abstract:
An electrophotographic photosensitive member includes a substrate, a photoconductive layer, an intermediate layer, and a surface layer sequentially formed. The intermediate layer contains silicon, carbon and hydrogen, and a distribution of a hydrogen ratio, which is a ratio of the number of hydrogen atoms to the number of silicon, carbon and hydrogen atoms, in the intermediate layer has a maximum region. A largest hydrogen atomic ratio in the intermediate layer is larger than a hydrogen atomic ratio in the surface layer, and the hydrogen atomic ratio in the surface layer is 0.30 to 0.45. A distribution of a carbon atomic ratio, which is a ratio of the number of carbon atoms to the number of silicon and carbon atoms, in the intermediate layer has a maximum and a minimum region. A carbon atomic ratio in the maximum region is 0.53 to 0.63, a carbon atomic ratio in the minimum region is 0.47 or more, and the maximum hydrogen region in the intermediate layer is partially superimposed on the minimum carbon region.
Public/Granted literature
- US20110123915A1 ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER AND ELECTROPHOTOGRAPHIC APPARATUS Public/Granted day:2011-05-26
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