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:
May. 05, 1992
Filed:
Oct. 03, 1990
Akihiro Owada, Tokyo, JP;
Konica Corporation, Tokyo, JP;
Abstract
A fixing device for use in a copying machine for fixing a toner image on the surface of a recording sheet. The fixing device conveys the recording sheet between a pair of rollers consisting of a heating roller and a pressure roller to fix the toner image on the surface of the recording sheet by heating the toner image with the heating roller. After a number of recording sheets have been fixed as a batch, the pair of rollers separate from each other and stop rotating if the batch of recording sheets are smaller in number than a predetermined number, whereas the pair of rollers continue rotating in press contact with each other for a predetermined time interval after the batch of recording sheets have been fixed if the batch of recording sheets are larger in number than the predetermined number.