| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suppress an occurrence of electromagnetic noise by individually setting drive current values for respectively driving a plurality of devices and suppressing changes in drive currents per unit time. <P>SOLUTION: A memory 20, an interface control device 21 and a print process control device 22 are connected to an external bus 19, a ROM 12 prestores respective drive characteristic information of each of the devices, a propagation delay amount selecting part 15 selects a propagation delay amount on the basis of the drive characteristic information, and a device driving part 1 (0 to 15) drives any device among the plurality of devices through the external bus 19 on the basis of a selection result of a driving capability by a drive capability selecting part 14 and a selection result of the propagation delay amount by the propagation delay amount selecting part 15. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
