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:
Oct. 05, 1993
Filed:
Feb. 25, 1992
Masato Ueda, Hino, JP;
Tadashi Miwa, Hachioji, JP;
Satoshi Haneda, Hachioji, JP;
Yasuhiko Tanaka, Kodaira, JP;
Kiyoaki Kawamoto, Kunitachi, JP;
Tetsuko Omoto, Kokubunji, JP;
Toshinori Yamazaki, Hachioji, JP;
Masakazu Fukuchi, Hachioji, JP;
Shizuo Morita, Tachikawa, JP;
Konica Corporation, Tokyo, JP;
Abstract
In a toner image fixing device, there are provided an endless belt being looped up around a heating roller and a conveyance roller, a pressure roller for pressing a sheet having a toner image onto the heating roller with the endless belt intervening between the pressure roller and the heating roller. A sensor is disposed inside the loop of the belt so as to come in contact with the heating roller, for detecting the temperature of the heating roller. The fixing temperature for the toner image is controlled on the basis of the temperature of the heating roller detected by the sensor. A first nip region is formed on a pressing portion located between the heating roller and the fixing roller. A second nip region is formed between the belt and the fixing roller, continuing from the first nip region but without contacting the heating roller.