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. 04, 1997
Filed:
Apr. 30, 1996
Akihiko Takeuchi, Yokohama, JP;
Toshihiko Ochiai, Tokyo, JP;
Motoi Katoh, Yokohama, JP;
Toshiaki Miyashiro, Ichikawa, JP;
Takehiko Suzuki, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes an electrophotographic photosensitive member; a charger for charging the photosensitive member to form an electrostatic latent image on the photosensitive member; an exposure device for exposing the photosensitive member to image light; a developing device for developing the latent image with toner; a transfer member contactable to the photosensitive member at a transfer position, the transfer member comprising an electrically conductive base, a high resistance surface layer, and a low resistance or intermediate resistance conductive layer between the conductive base and the surface layer; and transfer voltage applying device for applying a transfer voltage to the transfer member; wherein Ws>Wt>Wp>W1 is satisfied, where Ws is a width of a photosensitive layer measured in a direction perpendicular to a movement direction of the photosensitive member, W1 is an image exposure width of the exposure device, Wp is a width of a transfer material usable with the image forming apparatus, and Wt is an overlapping width between a charging width of the charger and the width of the conductive layer of the transfer member.