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. 08, 2011
Filed:
Dec. 02, 2008
Applicant:
Takahiro Yoshikawa, Sagamihara, JP;
Inventor:
Takahiro Yoshikawa, Sagamihara, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a fixing device for fixing a toner image on a recording medium, a fixing roller and a heating roller support a fixing belt. A pressing roller presses against the fixing roller via the fixing belt to form a fixing nip between the fixing belt and the pressing roller. A tension roller presses against the fixing belt to apply tension to the fixing belt. A primary heat source heats the fixing belt, and is disposed along an outer face of the fixing belt opposite the heating roller. A secondary heat source is provided inside the tension roller to supply deficient heat not provided by the primary heat source.