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. 21, 2017
Filed:
Aug. 28, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Yosuke Kishi, Suntou-gun, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus includes a developing apparatus having a container for storing a developer, a developer carrier in which a surface that carries the developer is configured so that a plurality of dielectric portions is interspersed on a surface formed of a conductor portion, and a regulating member that regulates a layer thickness of the developer that is carried on the developer carrier. In addition, a voltage applying unit applies voltages to the developer carrier and the regulating member. The voltage applying unit has a period, during non-image formation, over which voltages are applied to the developer carrier and the regulating member, with an absolute value of potential difference between the applied voltages being greater than that when a voltage is applied during image formation to at least one of the developer carrier and the regulating member, such that a force generated to attract the developer toward the developer carrier during non-image formation is weaker than that generated during image formation.