Patent ID: 6413689
Filing Date: 2002-07-02
Classification: G03G

Abstract:
A porous photosensitive body constructed by stacking, in order, a photosensitive resin layer serving as an insulating layer, a photoconductive layer and a translucent conductive layer on an inner circumferential face of a metal jointless cylindrical drumwherein said metal jointless cylindrical drug is formed by using an electroplating method and has a large number of first fine through holes which are aligned at equal intervals both in a circumferential direction of said metal jointless cylindrical drum and in a direction of an axial line of said metal jointless cylindrical drum; and wherein on said photosensitive resin layer formed are a large number of second find through holes respectively communicating with each of said first fin through holes formed on said metal jointless cylindrical drum, by irradiating exposure light on said photosensitive resin layer through said metal jointless cylindrical drum to dissolve irradiated portion's, whereas a large number of fine holes is not formed on said photoconductive layer.