Invention Grant
- Patent Title: Electrophotographic photosensitive member with depressed portions, process cartridge holding the electrophotographic photosensitive member and electrophotographic apparatus with the electrophotographic photosensitive member
- Patent Title (中): 具有凹陷部分的电子照相感光构件，处理盒保持电子照相感光构件和具有电子摄影感光构件的电子照相设备
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Application No.: US11770127Application Date: 2007-06-28
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Publication No.: US07718331B2Publication Date: 2010-05-18
- Inventor: Hiroki Uematsu , Harunobu Ogaki , Masataka Kawahara , Atsushi Ochi , Akira Shimada , Akio Maruyama , Kyoichi Teramoto , Toshihiro Kikuchi , Akio Koganei , Takayuki Sumida
- Applicant: Hiroki Uematsu , Harunobu Ogaki , Masataka Kawahara , Atsushi Ochi , Akira Shimada , Akio Maruyama , Kyoichi Teramoto , Toshihiro Kikuchi , Akio Koganei , Takayuki Sumida
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2006-022896 20060131; JP2006-022898 20060131; JP2006-022899 20060131; JP2006-022900 20060131; JP2007-016217 20070126
- Main IPC: G03G5/00
- IPC: G03G5/00
Abstract:
An electrophotographic photosensitive member is disclosed which is excellent in cleaning performance, has improved durability, and suppresses image defects in various environments. The electrophotographic photosensitive member has a support and a photosensitive layer provided on the support. Depressed portions independent of one another are formed on the surface of the electrophotographic photosensitive member so that the number of the depressed portions per 100 μm square is 76 or more and 1,000 or less. The openings of the depressed portions have an average major axis diameter of more than 3.0 μm and 14.0 μm or less.
Public/Granted literature
- US20080124637A1 ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS Public/Granted day:2008-05-29
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