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. 22, 2005
Filed:
Feb. 25, 2003
Hideki Tatematsu, Ashiya, JP;
Kenji Asakura, Kyoto, JP;
Masaru Imai, Hirakata, JP;
Tadafumi Shimizu, Ogoori, JP;
Masahiro Samei, Fukuoka, JP;
Keiichi Matsuzaki, Kurume, JP;
Kazunori Matsuo, Oonojo, JP;
Shoichi Kitagawa, Fukuoka, JP;
Hideki Tatematsu, Ashiya, JP;
Kenji Asakura, Kyoto, JP;
Masaru Imai, Hirakata, JP;
Tadafumi Shimizu, Ogoori, JP;
Masahiro Samei, Fukuoka, JP;
Keiichi Matsuzaki, Kurume, JP;
Kazunori Matsuo, Oonojo, JP;
Shoichi Kitagawa, Fukuoka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An image heating device is provided with reduced cost, by which a difference in glossiness among printed images on recording media is eliminated, and the wrapping of a belt and the like at a high temperature is prevented. In the image heating device, a controller estimates a temperature of a pressure roller according to at least one of a temperature of a belt detected by a temperature sensor and a variation with time in the detected temperature from completion of the heating after application of an electric power to the magnetization coil by an exciting circuit is stopped and the heating of the belt by the heating roller is stopped, so as to determine a set temperature for the belt in a subsequent image heating period.