INK JET HEAD AND METHOD OF MANUFACTURING INK JET HEAD

摘要

An ink jet head wherein a vibrating membrane (20) constituting a part of an ink chamber (22) is displaced by a piezo-electric transducer (1), pressure of ink in the ink chamber (22) is raised and ink drops are discharged through a nozzle opening (13a), is characterized in that said vibrating membrane (20) is constituted by thin film (20a) made of macromolecular resin and a rigid projection portion (20b) directly fixed to the thin film made of the macromolecular resin.