| 摘要 |
An inkjet recording apparatus having: a recording head including a pressure generation section, a pressure chamber, and a nozzle; and a drive signal generator which generates the drive signal including a first expansion pulse, a contraction pulse, and a second expansion pulse, wherein the pulses are generated to satisfy that: a peak value position P1 of positive pressure is not more than 1.45AL from a drive signal applying start time, and |M1/P1|≧0.45, where AL represents a half of the acoustic resonance period of the pressure chamber, M1 is a first peak value of negative pressure in the pressure chamber, P1 is a peak value of a positive pressure succeeding to M1, and M2 is a peak value of a negative pressure succeeding to P1, wherein M1, P1 and M2 are values of a pressure wave generated by total effect of all the pulses.
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