| 摘要 |
An ink jet recording apparatus, which is provided with the control circuit that controls the recording operation using a recording head, and the driving circuit that drives the recording head, comprises the power supply portion of a serial interface to supply power to the control circuit with a first voltage value, and a second voltage output circuit for supplying power to the driving circuit with a second voltage value. With the structure thus arranged, it becomes possible to utilize the power supply from the interface for driving the control circuit of the recording apparatus, while the power supply of the recording apparatus is dedicated as the power source for driving the recording head, hence materializing a smaller power supply circuit, and cost down as well.
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