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:
Aug. 11, 1992
Filed:
Aug. 10, 1990
Applicant:
Inventor:
Akiro Iimori, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355202 ; 165 40 ; 355200 ; 355204 ; 355208 ;
Abstract
An image forming apparatus having a cooling fan, driven at a constant rotational speed while the apparatus is performing a copying operation. The fan changes the rotational speed in accordance with the temperature within the apparatus while the apparatus is in a standby condition. Therefore, the fan makes little noise, without causing a decrease in the operating efficiency of the apparatus which may result from a temperature rise within the apparatus.