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:
Jun. 13, 2017
Filed:
Apr. 01, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Kenji Suzuki, Abiko, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A first stretch roller stretches a secondary transfer belt at a position where a tip in a conveying direction of a recording medium being conveyed through a secondary transfer portion can reach. The first stretch roller has a circumferential surface formed into a normal crown shape in which a straight area where a diameter of the first stretch roller is constant is provided at a center part in a direction of axis of rotation. A second stretch roller has a circumferential surface formed into an inverse crown shape in which a straight area where a diameter of the second stretch roller is constant is provided at a center part in a direction of axis of rotation.