Patent ID: 8276250
Filing Date: 2012-10-02
Classification: B41J,Y10T

Abstract:
1. A method of manufacturing a piezoelectric ink jet device having, a flexible membrane, a piezoelectric actuator mounted on the membrane, and a rigid substrate attached to a side of the membrane carrying the piezoelectric actuator which comprises the steps of: bonding the rigid substrate to a side of a carrier plate carrying the piezoelectric actuator; removing material from the carrier plate on a side opposite to the piezoelectric actuator and leaving only a thin layer of the carrier plate which then forms the membrane; and bonding a joint structure of the rigid substrate and the membrane with the piezoelectric actuator to a chamber plate in which a pressure chamber is formed, such that the actuator is opposed to the pressure chamber on the other side of the membrane, and the membrane is between the actuator and pressure chamber, wherein the piezoelectric actuator is provided with an electrode on at least one side, then the actuator is attached with its electrode side to the carrier plate, and removing material from the carrier plate is done by etching, and wherein the rigid substrate is a distribution plate which defines an ink supply system and a chamber for accommodating the piezoelectric actuator.