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:
May. 26, 2026
Filed:
Nov. 25, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroki Eguchi, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a photosensitive member, first and second charging members, a developing member, a transfer member, first and second charging voltage applying portions, a transfer voltage applying portion, and a controller. The controller controls the transfer voltage applying portion so that a region of at least a part of the photosensitive member surface contacting the transfer member in a transfer position has a potential of an opposite polarity to the predetermined polarity, controls the first charging voltage applying portion so that the surface of the photosensitive member is charged in a first charging position by applying a first charging voltage of less than a discharge start voltage, and controls the second charging voltage applying portion so that the surface of the photosensitive member is charged in a second charging position by applying a second charging voltage of not less than the discharge start voltage.