| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize low power consumption of a power control system by turning on a power switch means with an output signal from a device driver on the side of a computer so as to start a data processing means on the side of a peripheral device by a controller. SOLUTION: When the power source of a printer 3, namely a power switch means 32, is in an off state, the means 32 is turned on via an auto line field pin 23X. After driving a controller 31 with it, at the time of outputting an instruction for turning on a power switch means 34 to the controller 31, the controller 31 turns on the means 34 in response to this instruction. As the result, the power source of the means 33 being a data processing means is turned on and then, in accordance with a printer driving signal outputted from a printer driver 21, the means 33 is operated to printing.</p> |
