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:
Dec. 10, 2002
Filed:
Feb. 08, 2001
Toshio Miyamoto, Shizuoka, JP;
Hiroto Hasegawa, Shizuoka, JP;
Satoru Izawa, Shizuoka, JP;
Masahiko Suzumi, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An object of the present invention is to provide an image forming apparatus having a fixing device, which can obtain good fixing ability while preventing occurrence of hot offset. The present invention provides an image forming apparatus that has image forming means for forming an image on a recording material, a heating member for heating the image on the recording material, a backup roller forming a nip with the heating member, a temperature detecting element for detecting a temperature of an atmosphere, and control means for controlling a power supply to the heating member, wherein when a print signal is inputted, the control means controls power supply (electrical communication) to the heating member in such a manner that the heating member maintains a set temperature in accordance with a detection temperature of the temperature detecting element, and, thereafter, a fixing operation is effected.