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:
Sep. 10, 2013
Filed:
Feb. 13, 2012
Motoki Adachi, Ashigarakami-gun, JP;
Kentaro Kawata, Suntou-gun, JP;
Takayuki Kanazawa, Suntou-gun, JP;
Masanori Tanaka, Yokohama, JP;
Shunsuke Mizukoshi, Yokohama, JP;
Motoki Adachi, Ashigarakami-gun, JP;
Kentaro Kawata, Suntou-gun, JP;
Takayuki Kanazawa, Suntou-gun, JP;
Masanori Tanaka, Yokohama, JP;
Shunsuke Mizukoshi, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus is operable in a mode in which a speed of an intermediary transfer belt is changed after all of the toner images are primary-transferred onto the intermediary transfer belt, and the toner image primary-transferred on the intermediary transfer belt is passed through a secondary transfer position and primary transfer position in this order to reach the secondary transfer position, where the toner image is secondary transferred onto the transfer material, and a controller for making, before the image forming apparatus is operated in the mode to change the speed of the intermediary transfer belt, a potential difference between the intermediary transfer belt and the photosensitive member at the primary transfer position smaller than a potential difference between the intermediary transfer belt and the photosensitive member when the toner image is primary transferred from the photosensitive member onto the intermediary transfer belt.