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:
Nov. 04, 2025
Filed:
Aug. 15, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Jun Hara, Kanagawa, JP;
Taichi Sato, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image-forming apparatus, wherein, in a non-image-forming operation, a control unit executes the following control processing: i) not discharging electric charge between the charging member and the image bearing member and applying a first voltage having a first polarity with respect to a potential on the image bearing member to the charging member; ii) after performing the processing of i), applying a second voltage having a polarity opposite to the first polarity with respect to the potential; and iii) after performing the processing of ii), controlling a third voltage having a second polarity with respect to the potential to be applied to the charging member and controlling a fourth voltage having a polarity opposite to the second polarity with respect to the potential to be applied to the charging member, and controlling electric charge to be discharged between the charging member and the image bearing member.