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. 22, 2013
Filed:
Jul. 07, 2011
Shin Yamamoto, Osaka, JP;
Yoshihiro Fukuhata, Hyogo, JP;
Shin Yamamoto, Osaka, JP;
Yoshihiro Fukuhata, Hyogo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A fixing device includes a fixing rotary body and a pressing member each of which includes a waveform elastic layer having at least one wave crest and at least one wave trough to form a waveform face between the fixing rotary body and the pressing member pressed against each other. A controller identifies a temperature differential between a first temperature of the wave crest of the fixing rotary body detected by a first temperature detector and a second temperature of the wave trough of the fixing rotary body detected by a second temperature detector and adjusts an amount of heat stored from a heater into the fixing rotary body based on the identified temperature differential.