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US 7,704,657 B2Granted
Electrophotographic photosensitive member, method of manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHirotoshi Uesugi, Yukihiro Abe, Daisuke Miura, Nobumichi Miki, Harunobu Ogaki
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Abstract
An electrophotographic photosensitive member having excellent electrophotographic properties while being prevented from the generation of blade turn-up, a method of manufacturing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member are provided. The surface layer of the electrophotographic photosensitive member contains a polymer having a specific repeating structural unit.
Claims8
An electrophotographic photosensitive member, comprising:
- a support;
- and
- a photosensitive layer formed on the support, wherein:
- wherein the electrophotographic photosensitive member has a surface layer containing a polymer whose repeating structural units consisting of repeating structural units each represented by the following formula (1) and repeating structural units each represented by the following formula (a):
- where R1 represents a hydrogen atom or a methyl group, R2 represents a single bond or a divalent group, and Rf1 represents a monovalent group having at least one of a fluoroalkyl group and a fluoroalkylene group,
- where R101 represents a hydrogen atom or a methyl group, Y represents a divalent organic group, and Z represents a polymer unit,
- where 100% by number of the repeating structural units each represented by the formula (1) in the polymer are represented by the following formula (1-6):
- where R1 represents a hydrogen atom or a methyl group, R20 represents a single bond or an alkylene group, and Rf13 represents a perfluoroalkyl group having 4 to 6 carbon atoms.
5 more elements
Dependencies are inferred from the claim text.