Patent ID: 7266868

Claim:
A method of manufacturing a liquid delivery apparatus which comprises: a plurality of pressure chambers accommodating a liquid; nozzles communicating with the respective pressure chambers; and a plurality of piezoelectric ceramic sheets disposed at respective positions corresponding to the pressure chambers, the apparatus being configured to deliver the liquid to the outside from selected one of the nozzles by deforming the corresponding piezoelectric ceramic sheet to pressurize the liquid in the corresponding pressure chamber, the method comprising steps of: providing a fluid-passage-unit forming member which forms at least a part of a fluid passage unit; laminating a green sheet, to be eventually formed into the plurality of piezoelectric ceramic sheets, on a jig substrate; segmenting the green sheet into a plurality of segments; firing the plurality of segments of the green sheet, obtained by the segmenting step, into the plurality of piezoelectric ceramic sheets; fixing at least predetermined ones of the plurality of piezoelectric ceramic sheets acquired by the firing step to the fluid-passage-unit forming member; and removing the jig substrate from the at least predetermined ones of the plurality of the piezoelectric ceramic sheets.