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:
Jul. 17, 1990
Filed:
Dec. 09, 1988
Applicant:
Inventors:
Junji Nakai, Tokyo, JP;
Sakae Ishikawa, Kawaguchi, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355290 ; 1001 / ; 100176 ; 219216 ; 355295 ;
Abstract
A heat roller type fixing device for an electrophotographic copier, printer, facsimile apparatus or similar electrostatic image recorder includes a hollow cylindrical fixing roller having a heating element thereinside and a hollow cylindrical pressing roller held in pressing contact with the fixing roller. A shaft is received in the pressing roller while two annular pressing members are mounted on the shaft through individual bearings so as to urge the cylindrical inner periphery of the pressing roller. The pressing members are each movable on and along the shaft to any predetermined distance as measured from an end of the pressing roller.