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:
Mar. 05, 2013
Filed:
Nov. 23, 2010
Kazuhiro Hasegawa, Abiko, JP;
Kazuhiro Hasegawa, Abiko, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image heating apparatus includes: a first heater, having a nip through which a sheet passes, for heating toner image on the sheet; a second heater, having a nip through which the sheet passes, capable of heating the toner image on the sheet having passed through the first heater; a changer for changing the feeding speed of the sheet of the second image heater; two detectors for detecting the amount of slack of the sheet at one and the other ends of the sheet when the sheet is nipped by both of the nips; an adjuster adjusting the distance between the first and second heaters at the one and the other ends; and a portion for executing a correction mode when the amounts of slack detected by the detectors are different from each other, so that after the adjuster reduces the distance, the feeding speed is controlled.