ELECTROPHOTOGRAPHIC SENSITIVE BODY

摘要

PURPOSE:To obtain a high quality image free from black spots by anodically oxidizing the surface of an electrically conductive Al support with an electrolytic soln. having dissolving action and an electrolytic soln. having no dissolving action in order and by forming a photosensitive layer on the surface of the support. CONSTITUTION:The surface of an electrically conductive Al support is anodically oxidized with an electrolytic soln. having dissolving action and an electrolytic soln. having no dissolving action in order and a photosensitive layer is formed on the surface of the support. The electrolytic soln. having dissolving action contains at least one among sulfuric acid, chromic acid and phosphoric acid and the electrolytic soln. having no dissolving action contains at least one among borate, tartrate, adipate and malate. The rugged surface of the support is first smoothened with the electrolytic soln. having dissolving action and then a dense film having high electric insulating property is formed with the electrolytic soln. having no dissolving action. The implantation of electric charges from the support is suppressed, the resulting sensitive body can be set in a laser printer and a high quality image free from black spots can be obtd.