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:
Aug. 13, 2013
Filed:
Jun. 08, 2011
Kenji Kitami, Osaka, JP;
Kenji Kitami, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A fixing apparatus includes a hot roller, a fixing roller, a fixing belt that extends between the fixing roller and the hot roller and revolves, a pressure roller that is pressed against the fixing roller via the fixing belt, and forms a nip region between the pressure roller and the fixing belt, and at least one non-contact temperature sensor that detects a temperature of the fixing belt. A first temperature detection portion is set in a region where the fixing belt is in contact with a circumferential surface of the hot roller. A second temperature detection portion is set in a region that is on a downstream side in a revolution direction of the fixing belt relative to a point at which the fixing belt separates from the circumferential surface of the hot roller, and that is on an upstream side in the revolution direction relative to the nip region.