| 摘要 |
<P>PROBLEM TO BE SOLVED: To effectively suppress voltage drops in a drive power source even when driving a plurality of drive sections simultaneously. <P>SOLUTION: A drive voltage comprising a pulse train is applied to the electromechanical conversion element 26 of the first drive section 12 for driving the first drive section 12, while a drive voltage comprising a pulse train, which has a supply start timing to the electromechanical conversion element 26 that differs from the pulse train of the drive voltage applied to the electromechanical conversion element 26 of the first drive section 12, is applied to the electromechanical conversion element 26 of the second drive section 14 for driving the second drive section 14. <P>COPYRIGHT: (C)2003,JPO |
