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:
Apr. 09, 2013
Filed:
Dec. 07, 2010
Teruhiko Fujikura, Hachioji, JP;
Toru Kasamatsu, Hachioji, JP;
Tadayuki Ueda, Kokubunji, JP;
Yoshihito Sasamoto, Hachioji, JP;
Satoshi Miyajima, Hino, JP;
Teruhiko Fujikura, Hachioji, JP;
Toru Kasamatsu, Hachioji, JP;
Tadayuki Ueda, Kokubunji, JP;
Yoshihito Sasamoto, Hachioji, JP;
Satoshi Miyajima, Hino, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
Provided are an image forming apparatus, a fixing device, and an image forming system using the same, including: an image forming section for transferring a toner image onto a recording sheet; a first and second fixing rollers for thermally fixing the toner image on the recording sheet; a first and second temperature sensors each provided at a plurality of positions in a longitudinal direction of the fixing roller; and a rocking section for reciprocally shifting at least one of the fixing rollers in the longitudinal direction of the fixing roller, wherein the temperature gradient of each of the fixing rollers is detected, a central position of reciprocal shift of one fixing roller which can be shifted is set such that the temperature gradient of the other fixing roller is cancelled, and then the one fixing roller is reciprocally shifted by the rocking section.