| 摘要 |
A temperature sensor for use in connection with a heat and pressure roll fuser which minimizes the problem of gloss variation due to fuser roll wear caused by sensor contact with the fuser roll surface. To this end, one or more Resistance Temperature Detector (RTD) sensors are used. Each sensor is encapsulated or embedded in a polyimide material in any desired form such as a tape. The polyimide tape including the RTD is supported in contact with the surface of the heated fuser roll. The load required for this operation is substantially less than that for a bead thermistor and the area of the sensor structure is relatively large for distributing the load over a larger surface area of the roll contacted as compared to the area of contact of a bead thermistor.
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