Patent ID: 6167216
Filing Date: 2000-12-26
Classification: G01K,G03G

Abstract:
A fixing device having (A) a fixing roller for heat fixing to a paper a toner-developed-image on said paper and (B) a temperature sensor,said temperature sensor comprising (1) a temperature sensing element for detecting a surface temperature of a body to be detected and (2) two supporting plates for placing said temperature sensing element and for pressing it against the surface of said body to be heat detected; said temperature sensing element and said supporting plates fastened with heat resisting film or films, each film having an adhesive surface on one side thereof; wherein a heat-insulating elastic body is interposed between said supporting plates and said temperature sensing element to place said temperature sensing element projecting therefrom at its top surface; and the supporting plates, the heat insulating elastic body and the temperature sensing element are fastened together with said heat-resistant film or films,wherein, on the surface of said heat insulating elastic body is placed a second heat insulating elastic body for forming a protrusion smaller than said heat-insulating elastic body, and said temperature sensing element is placed on said second heat insulating elastic body.