Patent ID: 7929009

Claim:
An electrophotographic photosensitive drum, comprising: a cylindrical substrate; a light emitting element matrix layer which includes: a first electrode wire layer including multiple first electrode wires each extending in a circumferential direction of the cylindrical substrate; a second electrode wire layer including multiple second electrode wires each extending in a longitudinal direction of the cylindrical substrate; and an electroluminescence layer, the multiple first electrode wires being arrayed in the longitudinal direction of the cylindrical substrate so as to be separated from each other by an insulating member, the multiple second electrode wires being arrayed in the circumferential direction of the cylindrical substrate so as to be separated from each other by an insulating member, the first electrode wire layer, the electroluminescence layer, and the second electrode wire layer being stacked in the stated order toward a surface of the electrophotographic photosensitive drum from the cylindrical substrate; and a functional separation portion which includes: a transparent insulating layer provided on the light emitting element matrix layer; and a transparent conductive layer provided on the transparent insulating layer; and a photosensitive portion provided on the transparent conductive layer, wherein each of the multiple first electrode wires is annularly formed with no seam.