Patent ID: 7838190

Claim:
An electrophotographic photosensitive member comprising a support and a photosensitive layer formed on the support, wherein the electrophotographic photosensitive member has a surface layer containing: a polymer whose repeating structural units consist 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 is a divalent organic group having at least a structure represented by the following formula (c): where Y 1 and Y 2 each independently represent an alkylene group and Z is a polymer unit having a repeating structural unit represented by the following formula (b-1) or (b-2): where R 201 represents an alkyl group; where R 202 represents an alkyl group; and fluorine-atom-containing resin particles, a polyarylate resin having a repeating structural unit represented by the following formula (P-2): wherein all 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, where R 20 represents a single bond or an alkylene group, and Rf 13 represents a perfluoroalkyl group having 4 carbon atoms, the polyarylate resin has weight-average molecular weight (Mw) of 120,000; and a molar ratio between a terephthalic acid structure and an isophthalic acid structure in the polyarylate resin (terephthalic acid structure : isophthalic acid structure) is 50:50.