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:
May. 23, 2017
Filed:
Apr. 01, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Yutaka Kakehi, Kashiwa, JP;
Hiroshi Kokubo, Kashiwa, JP;
Haruhiko Omata, Abiko, JP;
Takashi Fujita, Kashiwa, JP;
Hideaki Kosasa, Abiko, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes: an image bearing member; a toner image forming unit; an endless transfer belt; a transfer roller urged from an inner peripheral surface of the transfer belt toward the image bearing member via the transfer belt; a feeding surface forming roller, provided downstream of the transfer roller with respect to a traveling direction of the transfer belt, having such a shape that a diameter at each of end portions is smaller than a diameter at a central portion with respect to a rotational axis direction; and a stretching roller, downstream of the feeding surface forming roller with respect to the traveling direction of the transfer belt, having such a shape that a diameter at each of end portions is larger than a diameter at a central portion with respect to the rotational axis direction.