Ink jet recording apparatus

An ink jet recording apparatus, comprising:

• a head body provided with a nozzle and a pressure chamber, which is communicated to the nozzle and is filled with ink;
• an actuator provided in the head body and including a piezoelectric element and an electrode for applying a voltage across the piezoelectric element for applying a pressure on the ink in the pressure chamber;
• and
• a driving circuit for supplying an actuator driving signal to the electrode of the actuator, wherein:
• in every printing cycle, the driving circuit always supplies an auxiliary pulse signal for driving the actuator to a degree such that the ink is not discharged;
• if an ink discharge instruction signal instructing an ink discharge is received, the driving circuit supplies, after the auxiliary pulse signal is supplied, an ink discharge pulse signal for driving the actuator so that the ink is discharged;
• and
• a time T from a completion of the supply of the auxiliary pulse signal until a start of the supply of the ink discharge pulse signal is set to satisfy
• n*Tc+Tc/4≦T≦n*Tc+3Tc/4,
• where Tc is a Helmholtz period of a head, and n is zero or a natural number.