PIEZOELECTRIC INKJET PRINTHEAD

摘要

A piezoelectric inkjet print head is provided to have uniform ink ejecting performance of a plurality of ink ejecting nozzles by allowing influence of cross talk respectively applying to pressure chambers having nozzles ejecting ink to be uniform. A piezoelectric inkjet print head(300) comprises a manifold, a plurality of pressure chambers(361), a plurality of ink ejecting nozzles(371), a vibrating plate(320), a plurality of trenches(390) and a plurality of piezoelectric actuators(380). The chambers in connection with the manifold are arranged along at least one side of the manifold. The ink ejecting nozzles are respectively connected to the pressure chambers. The vibrating plate covers the pressure chambers. The piezoelectric actuators are formed on the vibrating plate, and respectively change pressure of the pressure chambers by vibrating the vibrating plate. The trenches are formed on the vibrating plate so as to be located between the piezoelectric actuators.