Patent ID: 6176570
Filing Date: 2001-01-23
Classification: B41J

Abstract:
A printer apparatus comprising:a discharge nozzle;a pressure chamber in fluid communication with said discharge nozzle;a plurality of layers of vibrating plates adjacent said pressure chamber, the plurality of layers of vibrating plates having at least one vibrating plate which forms a complete side wall of the pressure chamber;a piezoelectric element formed on a top one of said vibrating plates; andan electrically conductive adhesive formed directly at a boundary between said vibrating plates and the piezoelectric element,wherein the piezoelectric element is a mask and a vibrating plate adjacent the at least one vibrating plate is comprised of a material different than a material of the at least one vibrating plate forming the complete side wall and wherein the at least one vibrating plate forming the complete side wall acts as an etching stopper for an etchant of the adjacent vibrating plate.