| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink-droplet jetting apparatus which forms one dot by jetting a plurality of ink droplets capable of jetting the ink droplets stably and printing at a high speed without suppressing drive frequency even if jetting a plurality of ink droplets. SOLUTION: The drive pulse signal to form the one dot comprises a plurality of main pulses Pm1 and Pm2 for a jetting operation; a first regulating pulse Ps1 for suppressing a residual vibration of the ink in the pressure chamber caused by the first main pulse Pm1, the first regulating pulse being inserted at a first interval W1 from the first main pulse Pm1 between the plurality of main pulses; a second regulating pulse Ps2 for suppressing a residual vibration of the ink in the pressure chamber caused by the main pulse which is in continuation with the plurality of main pulses. The main pulse Pm2 immediately after the first regulating pulse Ps1 is output at a first interval W1 almost the same as or more than the second interval W2 from a tail end of the first regulating pulse Ps1. COPYRIGHT: (C)2007,JPO&INPIT
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