| US 7,558,499 B2 | ||
| Fixing apparatus and image forming apparatus | ||
| Yoshinori Tsueda, Fuji (Japan); Satoshi Kinouchi, Tokyo (Japan); Osamu Takagi, Chofu (Japan); and Toshihiro Sone, Yokohama (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan); and Toshiba Tec Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on May 31, 2006, as Appl. No. 11/443,168. | ||
| Prior Publication US 2007/0280713 A1, Dec. 06, 2007 | ||
| Int. Cl. G03G 15/20 (2006.01) | ||
| U.S. Cl. 399—69 | 15 Claims |
| 1. A fixing apparatus, comprising:
a heating member which is a cylindrical member having a center axis, the heating member having an outer peripheral surface
which is heated;
a temperature detecting member placed in an area located vertically below the center axis of the heating member and vertically
below the outer peripheral surface of the heating member, the temperature detecting member including a detection surface which
receives infrared radiation from the heating member and a lens which condenses the infrared radiation from the heating member
on the detection surface, the temperature detecting member detecting the temperature of the outer peripheral surface of the
heating member on the basis of the received infrared radiation; and
a heating device which heats the heating member to a target temperature on the basis of the temperature detected by the temperature
detecting member,
wherein an optical axis of the lens is inclined at a predetermined angle to the outer peripheral surface of the heating member
including a point where the optical axis of the lens crosses a surface of the heating member.
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