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:
Dec. 17, 2013
Filed:
Jan. 24, 2011
Applicants:
Kohji Tokuyama, Ibaraki, JP;
Yutaka Nagasawa, Ibaraki, JP;
Genichiro Kawamichi, Ibaraki, JP;
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a roller replacement auxiliary tool of a fixing unit for extracting at least one of a heating roller and a pressure roller from a replacement opening part formed in a frame of the fixing unit in a shaft direction so as to be replaced. The heating roller has a heater lamp provided therein, and the pressure roller is capable of being brought into press-contact with the heating roller. The roller replacement auxiliary tool includes a protection unit that protects the roller when the roller is replaced.