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:
Mar. 29, 2011
Filed:
Aug. 04, 2009
Toshihiro Sone, Yokohama, JP;
Osamu Takagi, Chofu, JP;
Satoshi Kinouchi, Shinjuku, JP;
Yoshinori Tsueda, Fuji, JP;
Toshihiro Sone, Yokohama, JP;
Osamu Takagi, Chofu, JP;
Satoshi Kinouchi, Shinjuku, JP;
Yoshinori Tsueda, Fuji, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
To provide a technique for preventing a temperature rise in a non-sheet passing areas in a fixing device. The fixing device includes: a heating rotational member that includes at least one roller and heats a toner transferred on a sheet; a pressing roller that nips and carries the sheet in cooperation with the heating rotational member; a heating device that heats the heating rotational member; and heat pipes arranged, on the inside of at least one of the roller of the heating rotational member and the pressing roller, in ranges on both the sides in an axial direction of the roller from positions closer to the center in the axial direction than both the ends of a minimum sheet passing range in the axial direction of the roller of the nipped and carried sheet to positions further on the outer sides in the axial direction than both the ends of a maximum sheet passing range.