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:
Jul. 14, 2009
Filed:
Mar. 17, 2005
Hidemi Nukada, Minamiashigara, JP;
Hirofumi Nakamura, Minamiashigara, JP;
Taketoshi Hoshizaki, Minamiashigara, JP;
Yu Qi, Oakville, CA;
Ah-mee Hor, Mississauga, CA;
Nan-xing HU, Oakville, CA;
Hidemi Nukada, Minamiashigara, JP;
Hirofumi Nakamura, Minamiashigara, JP;
Taketoshi Hoshizaki, Minamiashigara, JP;
Yu Qi, Oakville, CA;
Ah-Mee Hor, Mississauga, CA;
Nan-Xing Hu, Oakville, CA;
Fuji Xerox Co., Ltd., Tokyo, JP;
Xerox Corporation, Norwalk, CT (US);
Abstract
The invention provides an image-forming apparatus, having an electrophotographic photoreceptor, a charging unit, a light-exposure unit, a development unit, a transfer unit, and a controller that controls the traveling speed of the peripheral surface of the electrophotographic photoreceptor and that thus makes a period from charging to development variable, wherein: the electrophotographic photoreceptor has an undercoat layer and a photosensitive layer; and the undercoat layer contains metal oxide fine particles with an acceptor compound added thereto; and an image is formed by charging, light exposure, development and transfer while causing the peripheral surface of the electrophotographic photoreceptor to travel in a predetermined direction; and a process cartridge that is detachable from the image forming apparatus.