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:
Feb. 18, 1986
Filed:
Mar. 19, 1984
Applicant:
Inventors:
Tatsuo Tani, Urayasu, JP;
Yasunori Kawaishi, Chiba, JP;
Assignee:
Ricoh Company, Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 355 / ; 219216 ; 432 60 ;
Abstract
A fixing device including a heating roller and a pressure applying roller maintained in pressing contact with each other and allowing a toner image bearing recording sheet to pass therebetween has a heat insulating structure enclosing at least a portion of the fixing device and a multiple wall structure for defining an air passage.