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:
Sep. 07, 2010
Filed:
Nov. 29, 2007
Toshihiro Sone, Yokohama, JP;
Osamu Takagi, Chofu, JP;
Satoshi Kinouchi, Shinjuku-ku, JP;
Yoshinori Tsueda, Fuji, JP;
Tetsuo Kitamura, Mishima, JP;
Hiroshi Nakayama, Mishima, JP;
Yohei Doi, Mishima, JP;
Kazuhiko Kikuchi, Yokohama, JP;
Masanori Takai, Izunokuni, JP;
Toyoyasu Kusaka, Izu, JP;
Toshihiro Sone, Yokohama, JP;
Osamu Takagi, Chofu, JP;
Satoshi Kinouchi, Shinjuku-ku, JP;
Yoshinori Tsueda, Fuji, JP;
Tetsuo Kitamura, Mishima, JP;
Hiroshi Nakayama, Mishima, JP;
Yohei Doi, Mishima, JP;
Kazuhiko Kikuchi, Yokohama, JP;
Masanori Takai, Izunokuni, JP;
Toyoyasu Kusaka, Izu, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
In a drive detection device for a fixing device according to an embodiment of the present invention, a non-paper passing area of a heat roller is formed by a surface where a metal conductive layer is exposed and a surface where a silicon rubber layer is exposed. The drive detection device has an infrared temperature sensor that detects the temperature of the non-paper passing area. When a detection result of the infrared temperature sensor is fluctuated a fixed amount or more in a predetermined time, the drive detection device determines that the heat roller is rotating. Otherwise, the drive detection device determines that the heat roller is not rotating.