Patent ID: 7310869

Claim:
A method of manufacturing an ink jet printer comprising a piezoelectric actuator and a flat connector, the piezo-electric actuator having a plurality of contacts distributed on a surface of the piezo-electric actuator, and the flat connector being connected to the contacts of the piezo-electric actuator, the method comprising: a step of forming, within a sheet made of an insulating material, a plurality of portions thinner than an area surrounding the thinner portions; a step of forming a plurality of conductive spots and conductive lines, one of each of the conductive lines being connected to one of each of the conductive spots at a first surface of the sheet, and at least a portion of each conductive spot being located within each thinner portion; a step of forming a plurality of projections by pressing the sheet at each of the thinner portions from a second surface side of the sheet to the first surface side of the sheet, at least a distal end of one of each of the projections being covered with one of each of the conductive spots; and a step of fixing the piezo-electric actuator and the flat connector so that one of each of the projections of the flat connector makes contact with one of each of the contacts of the piezo-electric actuator.