Patent ID: 7789496

Claim:
A piezoelectric inkjet printhead comprising: a first substrate having an ink flow path disposed in a first surface of the first substrate, the ink flow path comprising an ink introduction port via which ink is introduced, a manifold connected to the ink introduction port and for allowing ink to flow from the ink introduction port therethrough, a plurality of pressure chambers filled with ink to be ejected, a plurality of restrictors for connecting the manifold with the plurality of pressure chambers, respectively, and for supplying ink from the manifold to the respective pressure chambers, and a plurality of nozzles connected to the pressure chambers, respectively, and for ejecting ink from the respective pressure chambers; a plurality of piezoelectric actuators disposed on a second surface of the first substrate to correspond to each of the pressure chambers and for providing drivability required for ejecting ink to the respective pressure chambers; and a second substrate bonded to the first substrate to thereby complete the ink flow path.