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:
Oct. 15, 2013
Filed:
Jan. 14, 2011
Junichi Ochi, Mishima, JP;
Junichi Ochi, Mishima, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a photosensitive member, an intermediary transfer belt, a first charging device and a second charging device. Residual toner remaining on the intermediary transfer belt is to be electrically charged by the first and second charging devices and then is to be collected by being moved from the intermediary transfer belt to the photosensitive member. The first and second charging devices are successively contacted to the intermediary transfer belt at a determined timing, beginning with the first charging device disposed on an upstream side, thus electrically charging the residual toner. Thereafter, the first and second charging devices are successively spaced from the intermediary transfer belt at a determined timing, beginning with the first charging device.