Patent ID: 7704657

Claim:
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 R 1 represents a hydrogen atom or a methyl group, R 2 represents a single bond or a divalent group, and Rf 1 represents a monovalent group having at least one of a fluoroalkyl group and a fluoroalkylene group, where R 101 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 R 1 represents a hydrogen atom or a methyl group, R 20 represents a single bond or an alkylene group, and Rf 13 represents a perfluoroalkyl group having 4 to 6 carbon atoms.