Patent ID: 6290340
Filing Date: 2001-09-18
Classification: B41J,H01L,Y10T

Abstract:
A method of manufacturing a layer-built ink jet type print head comprising:laying a green sheet of ceramic material having a thickness suitable for formation of a vibrating member, a green sheet of ceramic material having through-holes corresponding to ink pressure chambers, and a green sheet having through-holes corresponding to flow paths to said ink pressure chambers, one on another in the stated order in order to form a pressure generating basic unit;firing said green sheets to thereby form said pressure generating basic unit comprising a vibrating plate, a spacer plate and a connecting plate;forming signal applying electrodes in correspondence to said ink pressure chambers and lead-out electrodes on said vibrating plate;bonding a green sheet of piezoelectric material to each of said signal applying electrodes;firing said green sheet of piezoelectric material with said fired pressure generating basic unit to form a pressure generating unit;laying a first metal plate, in which are defined a flow path to an ink tank and which has through-holes through which nozzle openings are communicated with said ink pressure chambers and said ink pressure chambers are communicated with an ink supply channel, a second metal plate having a through-hole corresponding to said ink supply channel and through-holes through which said ink pressure chambers are communicated with said nozzle openings, and a nozzle plate having said nozzle openings, one on another in the stated order and fixing said metal plates and said nozzle plate together to form a flow path unit; andjoining said pressure generating unit and said flow path unit.