发明申请

RECORDING ELEMENT SUBSTRATE, RECORDING HEAD, AND INK JET RECORDING APPARATUS HAVING THE RECORDING HEAD
摘要:
Measurement accuracy in temperature of a substrate for an ink jet head is improved. A substrate for an ink jet head includes diode sensors and aluminum sensors and as plural kinds of substrate temperature sensing elements, each of which has an output voltage property different from each other. The diode sensors and have a property that the output voltage thereof decreases as temperature increases when a constant current is applied to the corresponding sensor. The aluminum sensors and have a property that the output voltage thereof increases as temperature increases when the constant current is applied to the corresponding sensor.
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