Patent ID: 7498107

Claim:
An electrophotographic photoreceptor comprising: a cylindrical conductive supporting member; a photosensitive layer that is disposed on the cylindrical conductive supporting member; a non-contact IC tag that retains inspection information including a previously measured characteristic parameter of the electrophotographic photoreceptor; a photoreceptor drum that is provided with the cylindrical conductive supporting member and the photosensitive layer; and a flange that is disposed at an end portion of the photoreceptor drum, and is provided with the non-contact IC tag, wherein the characteristic parameter includes at least one selected from a group consisting of a film thickness of the photosensitive layer, a charging characteristic, current-voltage characteristic, a dark decay characteristic, a sensitivity, a surface roughness, a light reflectance, a direction of eccentricity, a hardness, and an abrasion resistance of the photosensitive layer.