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:
Nov. 26, 2019
Filed:
Jun. 28, 2018
Teppei Kawata, Kanagawa, JP;
Shinichi Namekata, Kanagawa, JP;
Akiyasu Amita, Kanagawa, JP;
Masateru Ujiie, Kanagawa, JP;
Yohhei Watanabe, Kanagawa, JP;
Fumihiro Hirose, Kanagawa, JP;
Takashi Sakamaki, Kanagawa, JP;
Teppei Kawata, Kanagawa, JP;
Shinichi Namekata, Kanagawa, JP;
Akiyasu Amita, Kanagawa, JP;
Masateru Ujiie, Kanagawa, JP;
Yohhei Watanabe, Kanagawa, JP;
Fumihiro Hirose, Kanagawa, JP;
Takashi Sakamaki, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A fixing device controller includes a plurality of voltage detectors to detect voltages of a plurality of power sources for supplying power to a plurality of heaters to heat a fixing member of a fixing device that fixes a toner image on a recording medium and a heater controller to execute duty control to turn on the plurality of heaters. The heater controller corrects a duty of at least one of the plurality of heaters based on the voltages detected by the plurality of voltage detectors and rated output values of the plurality of heaters.