Electrophotographic photoreceptor, process cartridge, and image forming apparatus

An electrophotographic photoreceptor comprising a conductive substrate and a photosensitive layer provided on the conductive substrate,

• wherein an outermost surface layer of the electrophotographic photoreceptor is composed of a cured film of a composition comprising a reactive charge transport material, a zinc stearate coverage of the surface of the outermost surface layer is 5.0% or more, and an oxygen permeability coefficient of the outermost surface layer before coating with zinc stearate is 2.0×1012 fm2/Pa·s or more,and
• wherein the reactive charge transport material is at least one selected from the group consisting of reactive compounds represented by the following formulae (I) and (II):
• wherein F represents a charge transport skeleton;
• L represents a divalent linking group including two or more selected from the group consisting of an alkylene group, an alkenylene group. —C(═O)—, —N(R)—, —S—, and —0—:
• R represents a hydrogen atom, an alkyl group, an aryl group, or an aralkyl group;
• and m represents an integer of 1 to 8,
• wherein F represents a charge transport skeleton;
• L ′represents an (n +l)-valent linking group including two or more selected from the group consisting of a trivalent or tetravalent group derived from an alkane or an alkene, alkylene group, an alkenylene group, —C(═O)—, —N(R)—, —S—, and —O—:
• R represents a hydrogen atom, an alkyl group. an aryl group, or an aralkyl group;
• m′represents an integer of 1 to 6;
• and n represent an integer of 2 to 3.