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:
Feb. 23, 2016
Filed:
Dec. 12, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Yusuke Saito, Susono, JP;
Kazutaka Yaguchi, Suntou-gun, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus includes an image bearing member, a process member that acts on the image bearing member, a voltage application unit that applies a voltage to the process member, a current detection unit that detects an electric current that flows to the image bearing member, and a control unit that causes the voltage application unit to apply voltages respectively having positive and negative polarities to the process member, to determine a surface potential of the image bearing member based on a detection result acquired by the current detection unit, and to output information about a usage amount of the image bearing member according to the determined result.