Patent ID: 8632151

Claim:
A driving device for a liquid discharging head that discharges a liquid droplet from a nozzle by supplying a driving signal to a discharge energy generating element, the driving device comprising: a driving signal generating unit that generates the driving signal used for operating the discharge energy generating element that is disposed in correspondence with the nozzle of the liquid discharging head, wherein the driving signal includes a plurality of discharge pulses used for performing discharging a plurality of times in one recording period, wherein a final pulse of the plurality of discharge pulses is configured such that a wave height change time of a dead-end side wave height changing portion of the final pulse is equal to or longer than a quarter of a resonant period Tc, and wherein at least one of the plurality of discharge pulses is configured such that a pulse width represented by a time from a starting end of the pulse to a starting end of the dead-end side wave height changing portion is a half of the resonant period Tc.