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:
Nov. 25, 2008
Filed:
May. 19, 2005
Kohei Matsuda, Shizuoka-ken, JP;
Tetsuya Kobayashi, Numazu, JP;
Shinya Yamamoto, Numazu, JP;
Masato Koyanagi, Mishima, JP;
Kentaro Kawata, Numazu, JP;
Shinichi Agata, Shizuoka-ken, JP;
Kohei Matsuda, Shizuoka-ken, JP;
Tetsuya Kobayashi, Numazu, JP;
Shinya Yamamoto, Numazu, JP;
Masato Koyanagi, Mishima, JP;
Kentaro Kawata, Numazu, JP;
Shinichi Agata, Shizuoka-ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a rotatable image bearing member on which an electrostatic latent image is formed, a charging member, and a transfer member. A charging potential of the charging member is different between when the charging member provides a first region on the image bearing member with a potential and when the charging member provides a second region on the image bearing member with a potential, thus providing a predetermined potential difference between the first region and the second region. A third region on the image bearing member, with the transfer member being supplied with a voltage to provide a predetermined potential difference between a potential of the third region before being charged by the charging member and a potential of the third region after being charged by the charging member.