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:
Feb. 15, 2011
Filed:
Apr. 07, 2008
Taiya Hirayama, Toride, JP;
Seiichiro Kameda, Abiko, JP;
Masashi Sawada, Abiko, JP;
Youichi Chikugo, Toride, JP;
Taiya Hirayama, Toride, JP;
Seiichiro Kameda, Abiko, JP;
Masashi Sawada, Abiko, JP;
Youichi Chikugo, Toride, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides an image heating apparatus which can easily attach and detach an external heating unit and easily perform a maintenance operation. The image heating apparatus has a fixing apparatus framewhich rotatably supports a fixing roller, a unit including a pressure springwhich urges an external heating rollertoward the fixing roller, a pressure guide shaftwhich holds the pressure spring, and a pressure staywhich slidably supports the pressure guide shaft, a screwwhich detachably fixes the unit to the fixing apparatus framevia the pressure stay, and a pressure releasing armwhich releases the force of the pressure springacting on the screwvia the pressure stayby sliding the pressure guide shaftrelative to the pressure stay