Patent ID: 8042918

Claim:
A liquid discharging head for discharging a liquid drop from a nozzle connected to a liquid chamber including a wall formed of a vibration plate, the liquid discharging head comprising: a piezoelectric actuator configured to displace the vibration plate to cause the nozzle to discharge the liquid drop from the liquid chamber, the piezoelectric actuator comprising: at least three driven piezoelectric elements aligned in a line, each driven piezoelectric element of the at least three driven piezoelectric elements comprising: a plurality of piezoelectric element columns aligned in a direction in which the at least three driven piezoelectric elements are aligned; and a groove provided between adjacent piezoelectric element columns, wherein a pitch between adjacent piezoelectric element columns that are within any one of the at least three driven piezoelectric elements is different from a pitch between adjacent piezoelectric element columns that are within another one of the at least three driven piezoelectric elements.