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:
Oct. 20, 2009
Filed:
Apr. 17, 2007
Shinichi Tsukamura, Hino, JP;
Takayuki Horie, Hachioji, JP;
Shinichi Tsukamura, Hino, JP;
Takayuki Horie, Hachioji, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
An image forming apparatus including a fixing roller; an endless fixing belt rotated together with the fixing roller; a pressurizing section arranged on the inner peripheral surface side of the fixing belt wherein the pressurizing section makes the fixing belt to be in pressure contact with the fixing roller, and corresponding to the outer peripheral surface of the fixing roller, the pressurizing section is deformed into a concave shape; a separation section which makes the fixing belt to be in pressure contact with the fixing roller, and by a tip of the separation section, the outer peripheral surface of the fixing roller is deformed into a concave shape; and a controller for controlling the pressing force of the separation section so that when an envelope is passed through as the recording material the pressing force becomes stronger than the pressing force when a plain paper passes through as the recording material.