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. 08, 2008
Filed:
Sep. 26, 2005
Yuichi Ikeda, Abiko, JP;
Jun Tomine, Abiko, JP;
Yuichi Ikeda, Abiko, JP;
Jun Tomine, Abiko, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes an image bearing member for carrying a toner image; a toner image developing device for forming a toner image on the image bearing member; a transfer roller for contacting the image bearing member to form a nip therebetween and for being supplied with a voltage to transfer the toner image from the image bearing member onto the recording material in the nip; a voltage source for applying a voltage to the transfer roller; an executing devise for executing a toner application mode for transferring the toner image onto the transfer roller by applying a voltage to the transfer roller contacted to the toner image in the nip. A size of the toner image transferred onto the transfer roller during an operation in the toner application mode is equal to or longer than one full circumferential length of the transfer roller with respect to a peripheral moving direction of the image bearing member and is equal to an image forming area of the image bearing member with respect to a direction perpendicular to the peripheral moving direction of the image bearing member.