The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2003
Filed:
Mar. 29, 2001
Toshiyuki Ehara, Kanagawa, JP;
Koji Yamazaki, Kanagawa, JP;
Masaya Kawada, Shizuoka, JP;
Tetsuya Karaki, Shizuoka, JP;
Hironori Ohwaki, Shizuoka, JP;
Kunimasa Kawamura, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An a-Si photosensitive member and an image forming apparatus are provided which prevent fusion bonding in digital copying machines and attain satisfactory image formation. Specifically, in order that even when uneven abrasion occurs on a drum surface layer, it may not substantially affect the image, a photosensitive member formed by successively stacking on a conductive substrate a photoconductive layer comprising amorphous Si and a surface protective layer comprised of an amorphous material is provided such that the spectral reflectance (%) satisfies the relation of 0≦(Max−Min)/(Max+Min)≦0.20, and a center line average roughness Ra of the interface on the surface side of the photoconductive layer and the center line average roughness Ra of the outermost surface of the surface layer, within the range of 10 &mgr;m×10 &mgr;m, satisfy the relations of Ra /Ra ≧1.3 and 22 nm≦Ra ≦100 nm.