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. 17, 2016
Filed:
Aug. 25, 2014
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Yuki Sugiyama, Numazu, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01); G03G 15/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/205 (2013.01); G03G 15/6564 (2013.01); G03G 2215/2035 (2013.01);
Abstract
An image-forming apparatus supplies power to a heater at the smaller duty ratio of: an upper-limit duty ratio which is set according to the current detected by an inlet current detecting unit in a warm-up period of a fixing unit; and a duty ratio which is continuously corrected according to a change in a heater resistance value and is required for supplying a predetermined target power to the heater. By this arrangement, the image-forming apparatus can output a first page of recording material in a short period time so that a current consumption of the entire apparatus does not exceed rated current consumption.