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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.:

US 7630662 B1

PDFFull Text
Date of Patent:
Dec. 08, 2009

Filed:

Sep. 03, 2008

Image forming apparatus for fixing an image on a recording material and a current detection circuit therefor

Applicants:

Teruhiko Namiki, Mishima, JP;

Daizo Fukuzawa, Mishima, JP;

Mahito Yoshioka, Numazu, JP;

Yasuhiro Shimura, Yokohama, JP;

Hiromitsu Kumada, Susono, JP;

Inventors:

Teruhiko Namiki, Mishima, JP;

Daizo Fukuzawa, Mishima, JP;

Mahito Yoshioka, Numazu, JP;

Yasuhiro Shimura, Yokohama, JP;

Hiromitsu Kumada, Susono, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Fitzpatrick, Cella, Harper & Scinto

Primary Examiner:

William J Royer

Int. Cl.
CPC ...
G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

The image forming apparatus includes a current detection circuit for detecting an input current from the commercial power supply to the apparatus, in which: when a current detected by the current detection circuit exceeds a predetermined value, a maximum current suppliable to a fixing portion is restricted; and when a temperature of the fixing portion falls below, in a situation where the maximum current suppliable to the fixing portion is restricted, the predetermined temperature lower than a control target temperature, a conveyance interval of a recording material conveyed to the fixing portion is extended. In the image forming apparatus, even when a consumption current of the image forming apparatus is increased during successive image formation, it is capable of controlling the consumption current so as not to exceed a maximum current of a commercial power supply, securing desired fixability, and minimizing decline of image forming performance.

Find Patent Forward Citations

Namiki, Teruhiko. (2009). Image forming apparatus for fixing an image on a recording material and a current detection circuit therefor (U.S. Patent No. 7630662). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7630662

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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