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:
Aug. 04, 2015
Filed:
Apr. 19, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Keitaro Taoka, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus includes an image bearing member, a transfer member configured to transfer a toner image formed on the image bearing member onto a recording material, and a contact-and-separation unit configured to move the transfer member to a contact position where the transfer member contacts the image bearing member and a spacing position where the transfer member is separated from the image bearing member. A control portion controls a driving unit when the transfer member is moved from the contact position to the spacing position by using a phase range and a rotational direction of a cam of the contact-and-separation unit, in which a distance between an outer circumference at an abutted portion of a supporting member and a rotation center of the cam continuously increases with rotation of the cam.