| 摘要 |
PROBLEM TO BE SOLVED: To provide an inkjet recording apparatus which can stably jet ink containing spacer beads dispersed therein, and in which the impact accuracy of ink droplets is satisfactory. SOLUTION: An inkjet recording apparatus has a head which includes, a plurality of nozzles each of which jets ink containing spacer beads dispersed therein on a substrate; a plurality of pressure chambers each of which communicates with each of the nozzles; and a plurality of electromechanical transducers which change a capacity of each of the pressure chambers by applying a voltage pulse, wherein the ink is jetted from each of the nozzles by applying to each of the electromechanical transducers the voltage pulse which includes a first pulse for increasing the capacity of the pressure chamber and then decreasing the capacity after a lapse of a predetermined time, wherein, when a half of an acoustic resonance period of a pressure wave in the pressure chambers is denoted as AL, a width of the first pulse is twice the AL or more. COPYRIGHT: (C)2009,JPO&INPIT
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