| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid droplet ejecting apparatus in which energy efficiency is improved. SOLUTION: In the liquid droplet ejecting apparatus, when liquid droplets are ejected to a piezoelectric body 52 in which when a superposed voltage obtained by superposing the constant voltage of a constant voltage level and the waveform voltage of a sinusoidal waveform on each other is applied, at least one of electrostatic capacitance and a deformation amount is changed in accordance with the voltage level of the constant voltage, a drive control circuit 16 uses, as a reference voltage level, the voltage level of the constant voltage where a value to be obtained by dividing the square of the deformation amount of the piezoelectric body 52 by the electrostatic capacitance becomes a maximum value and applies a drive voltage in which the voltage of a previously set drive waveform is superposed on the constant voltage of the voltage level that is within a predetermined range including the reference voltage level. COPYRIGHT: (C)2009,JPO&INPIT
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