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:
Jan. 10, 2023
Filed:
Aug. 27, 2021
Akiyasu Amita, Kanagawa, JP;
Tetsuo Tokuda, Tokyo, JP;
Masateru Ujiie, Kanagawa, JP;
Fumihiro Hirose, Kanagawa, JP;
Daisuke Arai, Tokyo, JP;
Akiyasu Amita, Kanagawa, JP;
Tetsuo Tokuda, Tokyo, JP;
Masateru Ujiie, Kanagawa, JP;
Fumihiro Hirose, Kanagawa, JP;
Daisuke Arai, Tokyo, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An image forming apparatus includes a fixing device and circuitry. The fixing device includes a fixing rotator, an electromagnetic induction heater configured to heat the fixing rotator, and a magnetic flux control member. The circuitry is configured to control the electromagnetic induction heater to lead a temperature of the fixing rotator to a target temperature and change an upper limit of power supplied to the electromagnetic induction heater based on the target temperature.