Electrophotographic sensitive body and its manufacture

Abstract

Abstract PURPOSE:To prevent the formation of a striped pattern on an image by restricting the product of the laser light transmittance of a photosensitive layer and the laser light reflectance of a substrate so as to reduce the interference action of incident light and reflected light on laser light. CONSTITUTION:When a photosensitive layer having laser light transmittance (a) is laminated on a substrate having laser light reflectance (b), an equation aXb <=0.2 is satisfied. When the substrate is drum-shaped Al substrate, a rough tube for the substrate is mirror-finished with a super-precision lathe provided with a diamond bite to regulate the surface roughness to <=0.2mum. Etching is then carried out to smoothen the sharp unevenness and to regulate the surface roughness to 0.2-4mum. Thus, especially in case of 400-850nm oscillation wavelengths of laser light, the laser light reflectance of the substrate is remarkably lowered. In case of dry etching, etching gas is changed over to gas for forming a photosensitive layer after the etching to form the photosensitive layer.

Inventors

• 👤 Yasuo Nishiguchi
• 👤 泰夫 西口

Bibliographic Details