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. 24, 2021
Filed:
Jun. 23, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Yusuke Minato, Kashiwa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes an image bearing member, a transfer member, a voltage source, a current detecting portion, and a controller. When the recording material passes through the transfer portion, the controller is capable of changing the predetermined voltage on the basis of a detection result of said current detecting portion so that the detection result of the current detecting portion falls within a predetermined range. A maximum changeable amount per once of the predetermined voltage is larger when a leading end portion of the recording material with respect to a recording material feeding direction passes through the transfer portion than when a central portion of the recording material with respect to the recording material feeding direction passes through the transfer portion.