Patent ID: 7964327

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 includes an amine compound and a charge transport material, wherein the amine compound includes an amine site having an electrostatic potential with a dimensionless unit not greater than −0.27, wherein the following relationship is satisfied: 0.06≦−( V−( −0.27)) X≦ 0.2, wherein V is the electrostatic potential, having a dimensionless unit, of the amine site in the amine compound; and X is a content (% by weight) of the amine compound, wherein the outermost layer is a protection layer, and includes a filler, and wherein the amine compound is a compound having the following formula: wherein R 1 and R 2 independently represent substituted or unsubstituted alkyl group, or a substituted or unsubstituted aromatic hydrocarbon group, and one of R 1 and R 2 is a substituted or unsubstituted aromatic hydrocarbon group, and may be combined with each other to form a heterocyclic group including a nitrogen atom; and Ar represents a substituted or unsubstituted aromatic hydrocarbon group.