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:
Mar. 19, 2019
Filed:
Jul. 06, 2017
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Shozo Aiba, Tsukubamirai, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/16 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/1665 (2013.01); G03G 15/1675 (2013.01); G03G 15/55 (2013.01); G03G 2215/00569 (2013.01);
Abstract
An image forming apparatus includes an image bearing member, a transfer body, a bias applying portion, a current detection unit, and a control unit. The control unit is configured to change the upper limit voltage based on the current detected by the current detection unit in a state where a test bias is applied to the transfer portion during a non-image forming period, and a voltage of the test bias being applied.