| 摘要 |
The present invention provides a recording head that has a driving circuit performing driving by dividing a plurality of heaters into a plurality of blocks and supplying electric current on a block-by-block basis based on recording data; a constant current source applying a common bias current to each temperature sensor group obtained by dividing temperature sensors disposed in correspondence to each heater of a plurality of heaters into blocks; a voltage output circuit having a switching element that turns electric current supply to the temperature sensors of the selected temperature sensor group ON and OFF, and obtaining a voltage generated at both terminals of the selected temperature sensor by supplying an electric current to the temperature sensor; and an amplifier circuit amplifying the detection voltages.
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