Patent ID: 7858278

Claim:
An electrophotographic photoreceptor, comprising: an electroconductive substrate; and a photosensitive layer located overlying the electroconductive substrate, wherein an outermost layer of the electrophotographic photoreceptor comprises: a resin comprising a graft copolymer in which a monomer having a polar group is graft polymerized to a polycarbonate resin, a polyarylate resin or a copolymer thereof; wherein the monomer having a polar group is selected from acrylic acid or vinylpyridine; and a filler; wherein the polycarbonate resin, polyarylate resin or copolymer thereof is a resin consisting of units of bisphenol compounds having the following formula (1) optionally having an alkyl group: HO—X—OH (1) wherein X represents a divalent group having the following formulae (2) or (3): wherein each of R 101 , R 102 , R 103 , and R 104 independently represents a halogen atom, an unsubstituted alkyl group having 1 to 6 carbon atoms, or an unsubstituted aryl group; each of o and p independently represents an integer of 0 to 4; each of q and r independently represents an integer of 0 to 3; Y represents a single bond, a linear alkylene group having 2 to 4 carbon atoms, —O—, —S—, or a functional group selected from groups having formulae (4) to (7): wherein R 105 represents a halogen atom, an unsubstituted alkyl group or alkoxy group having 1 to 6 carbon atoms, or an unsubstituted aryl group; s represents an integer of 0 to 4 and t represents a positive integer; wherein each of R 106 and R 107 independently represents a hydrogen atom, a halogen atom, an unsubstituted alkyl group or alkoxy group having 1 to 6 carbon atoms, or an unsubstituted aryl group, wherein R 106 and R 107 optionally share bond connectivity to form a carbon ring having 5 to 12 carbon atoms; wherein each of R 108 , R 109 , R 110 , and R 111 independently represents a hydrogen atom, a halogen atom, an unsubstituted alkyl group or alkoxy group having 1 to 6 carbon atoms, or an unsubstituted aryl group; and