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:
Oct. 20, 2015
Filed:
Nov. 05, 2014
Shota Kobashigawa, Tokyo, JP;
Susumu Matsusaka, Kanagawa, JP;
Motokazu Hasegawa, Kanagawa, JP;
Tsuyoshi Hashiyada, Tokyo, JP;
Shota Kobashigawa, Tokyo, JP;
Susumu Matsusaka, Kanagawa, JP;
Motokazu Hasegawa, Kanagawa, JP;
Tsuyoshi Hashiyada, Tokyo, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A fixing device includes a pressurization member pressed against a fixing rotator and a magnetic flux generator disposed opposite the fixing rotator. A heat generator is disposed opposite the magnetic flux generator to generate heat by a magnetic flux generated by the magnetic flux generator. A magnetic shield is movably disposed inside the heat generator to screen the magnetic flux penetrating through the heat generator. A pressure adjuster presses the pressurization member against the fixing rotator with variable pressure. An interlock interlocks the pressurization member with the magnetic shield. The pressure adjuster presses the pressurization member against the fixing rotator with increased pressure to move the magnetic shield via the interlock to a proximate position in proximity to the heat generator and with decreased pressure to move the magnetic shield via the interlock to a remote position being remote from the heat generator.