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. 23, 2012
Filed:
Dec. 02, 2009
Toshiaki Kagawa, Osaka, JP;
Susumu Murakami, Osaka, JP;
Masashi Hirai, Osaka, JP;
Atsushi Ide, Osaka, JP;
Takashi Mukai, Osaka, JP;
Toshiaki Kagawa, Osaka, JP;
Susumu Murakami, Osaka, JP;
Masashi Hirai, Osaka, JP;
Atsushi Ide, Osaka, JP;
Takashi Mukai, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In a fixing device including (i) an external heat belt which abuts against a surface of a fixing roller so as to heat the fixing roller and (ii) a cleaning member which abuts against the external heat belt, a fixing temperature, which is a surface temperature of the fixing roller during a fixing process, is set per group into which recording media to be subjected to the fixing process are divided according to their widths in a direction of a rotary axis of the fixing roller, in such a way that the fixing temperature is set to a lower temperature for a group of narrower widths. This makes it possible to prevent a reduction in releasability of the fixing roller caused by a material, which is scraped off from the external heat belt by the cleaning member and then adhered to the fixing roller, thereby preventing the high-temperature offset.