ELECTROPHOTOGRAPHIC PHOTO-RECEPTOR AND ELECTROPHOTO- GRAPHIC APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor high in reliability and reduced in residual potential in the photo-receptor having a protective layer dispersing a metal oxide into a binder resin and forming a good image free from background stains even in the case of a high-speed copying machine. SOLUTION: The electrophotographic photoreceptor is formed by sequentially laminating a photoconductive layer and a protective layer dispersing a metal oxide into a binder resin on a conductive substrate, and the surface roughness of the protective layer is regulated to a center line average roughness to <=0.07μm and a maximum height of <=0.6μm and a 10 points average of <=0.5μm by rubbing and/or polishing treatment of the surface. The electrophotographic apparatus is obtained by using this photoreceptor.