| 摘要 |
The invention is a liquid jetting apparatus including: a head member having a plurality of nozzles, the nozzles being classified into n classes, n being not less than two; a micro-vibrating unit that causes liquid in a nozzle or nozzles of the respective classes to respectively minutely vibrate; and a micro-vibrating controlling unit that causes the micro-vibrating unit to operate. The micro-vibrating controlling unit is adapted to cause the micro-vibrating unit to operate in such a manner that the liquid in the nozzle or nozzles of the respective classes minutely vibrates at a common constant period T and at respective phases for the respective classes, the respective phases for the respective classes being different in turn by T/n.
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