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:
Jun. 17, 2008
Filed:
Oct. 05, 2004
Akihiro Yasuda, Osaka, JP;
Noriyuki Tajima, Osaka, JP;
Hideki Tatematsu, Hyogo, JP;
Koichi Baba, Osaka, JP;
Shigemitsu Tani, Osaka, JP;
Akihiro Yasuda, Osaka, JP;
Noriyuki Tajima, Osaka, JP;
Hideki Tatematsu, Hyogo, JP;
Koichi Baba, Osaka, JP;
Shigemitsu Tani, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
As a cooling mechanism that cools the entire paper passage area of a heat-producing belt, a rotational drive method of the heat-producing belt is employed and the heat-producing belt is cooled by rotational cooling by being made to idle when paper is not being passed through. An excitation apparatus and the above-described cooling mechanism are controlled so that recording paper is not passed through and the heat-producing belt is cooled while being heated over the heating width when the small-size recording paper is passed through until the temperature detected by a paper non-passage area temperature detecting sensor is at or below a predetermined fixing temperature. This fixing apparatus enables an excessive rise in temperature of a paper non-passage area of the heat-producing belt to be efficiently eliminated, and the temperature distribution of heat-producing belt to be made uniform in a short time.