| 摘要 |
The driving device of a recording head having a recording element, the driving device includes: a power supply device which supplies voltage to be applied to the recording element; an output circuit block which converts the voltage supplied from the power supply device into a drive voltage having a prescribed waveform, the output circuit block having a structure in which a plurality of drive circuit units are connected in parallel to the recording element; a recording data integration device which determines an integrated value of a number of recording actions of the recording element according to recording data; and a drive circuit unit selection device which selects at least one of the drive circuit units in accordance with the integrated value determined by the recording data integration device, in such a manner that an on-resistance value of the output circuit block is kept within a prescribed value.
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