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. 05, 2013
Filed:
Oct. 05, 2010
Ryota Matsumoto, Yokohama, JP;
Yukwi Hong, Hiratsuka, JP;
Shingo Horita, Tokyo, JP;
Koichi Hashimoto, Yokohama, JP;
Ryota Matsumoto, Yokohama, JP;
Yukwi Hong, Hiratsuka, JP;
Shingo Horita, Tokyo, JP;
Koichi Hashimoto, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes a rotatable drum, a charging section for charging the drum, a latent image forming section, a potential detector, a phase detector, and a controller. The charging section includes a first carrying member and a second carrying member for carrying electroconductive magnetic particles. The second carrying member is disposed downstream of said first carrying member. The latent image forming section forms a latent image on the drum, and is disposed downstream of the charging section. The potential detector detects a surface potential of the drum, and is disposed downstream of the charging section. The phase detector detects information relating to a rotational phase of the second carrying member. The controller controls voltages applied to the first carrying member and to the second carrying member, on the basis of a result of detection by the potential detector and a result of detection by the phase detector.