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:
Dec. 11, 2012
Filed:
Jan. 05, 2010
Atsuyoshi Nakayama, Osaka, JP;
Atsuyoshi Nakayama, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A fixing device which can prevent deterioration and breakage of each member, and an image forming apparatus having the fixing device are provided. A separation/contact mechanism carries out separation/contact operation of an external heating section with respect to a fixing roller by turning the whole external heating section using a central axis of a rotation supporting roller out of a pair of rotation supporting rollers, as a rotation axis. This constitution can decrease impact force generated at the time of pressure-contact, and can prevent deterioration and breakage of the external heating belt and the fixing roller. Furthermore, when a heater lamp is provided in only the rotation supporting roller, positional deviation and damage of the heater lamp can be prevented.