Patent ID: 6045679
Filing Date: 2000-04-04
Classification: G03G,Y10S

Abstract:
A method for manufacturing an image-forming element having a hollow cylindrical drum body with a metallic outer layer and provided on its outer circumferential surface with a plurality of circumferentially extending electrodes which are electrically insulated from one another and from the drum body, comprising the steps of:first, cutting grooves with internal walls directly into said metallic outer layer of the drum body;second, forming an insulating surface layer at least on the internal walls of said grooves by converting the surface of said metallic outer layer into an insulating substance, said insulating surface layer being formed after the grooves are cut on at least the internal walls of said grooves by anodizing said metallic outer layer; andthird, filling said grooves with electrically conductive material after said insulating surface layer is formed for forming said image-forming element on the drum body.