| 摘要 |
A material sensing apparatus detects the material (type) of an object, e.g., a recording medium, using a heat source which heats at least a portion of an object, a temperature sensor which measures the temperature of a portion of the object, a memory element which stores data on the relationship between temperature and type of object, and a determination element which determines the type of the object based on the measurement result of the temperature sensor and the data in the memory element. The temperature sensor measures the temperature of a portion of the object at a predetermined distance from the portion heated by the heat source.
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