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. 24, 2015
Filed:
Nov. 15, 2012
Canon Kabushiki Kaisha, Tokyo, JP;
Oki Kitagawa, Kashiwa, JP;
Shigeaki Takada, Abiko, JP;
Akiyoshi Shinagawa, Kashiwa, JP;
Masanobu Tanaka, Tokyo, JP;
Hiroki Kawai, Toride, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image heating apparatus includes a heating roller; a nip forming member for forming the nip with the roller; a sheet jam sensor; a first controller for interrupting a heating operation when the sensor detects the sheet jamming, and for resuming the heating operation after the jamming is cleared; a rubbing member for rubbing a heating roller surface; a moving mechanism for moving the rubbing member to a position for spacing the rubbing member from the roller to a position for rubbing the roller surface; and a second controller for executing an operation of moving the rubbing member to the rubbing position to rub the heating roller surface when a predetermined condition is reached, wherein the second controller delays, when the condition is reached during a period in which a predetermined count of sheets pass the nip after the jam clearance, the moving operation to after the period.