| 摘要 |
<P>PROBLEM TO BE SOLVED: To secure a high landing position accuracy by controlling variation of speed of an ejected liquid droplet by different liquid droplet amount and to achieve high-frequency ejection. <P>SOLUTION: A basic driving waveform 30 including a plurality of jet pulses P1-P3 and a non-jet pulse PS placed in front of the final jet pulse P3 in one recording period is generated. A part of pulse is removed from the basic driving waveform 30 leaving at least the final jet pulse P3, and driving signals (32, 34, 36) which apply to an ejecting energy generating element are generated. When only the final jet pulse P3 among the plural jet pulses is used for jetting, a first driving signal (32) including the non-jet pulse PS placed in front of the final jet pulse is generated. When a combination of the final jet pulse P3 and at least another one jet pulse among the plural jet pulses is used for jetting, second driving signals (34, 36) configured by removing the non-jet pulse PS are generated. <P>COPYRIGHT: (C)2013,JPO&INPIT |
