Patent ID: 7022446

Claim:
An electrophotographic photosensitive member comprising a support and provided thereon a photosensitive layer, wherein; said electrophotographic photosensitive member has a surface layer containing: at least one of a charge-transporting material and conductive particles; and a polymer obtained by polymerizing wherein X 21 represents a single bond, a carbonyl group, an ether group, a thioether group or a —CR 01 R 02 -group, where R 01 and R 02 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted phenyl group, or represent a substituted or unsubstituted cycloalkylidene group having 3 to 6 carbon atoms which is formed by combination of R 01 with R 02 , provided that a case in which both the R 01 and R 02 are substituted or unsubstituted phenyl groups is excluded; and R 21 to R 24 each independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 6 carbon atoms, or a substituted or unsubstituted alkoxyl group having 1 to 4 carbon atoms.