Patent ID: 7824518

Claim:
A method of manufacturing an ink jet head, wherein the ink jet head comprises a plurality of plates comprising a nozzle plate having an ink discharge surface, and a fixing plate comprising: (a) forming at least one hole through each of the plurality of plates; (b) applying an adhesive agent to at least a first one of the plurality of plates; (c) contacting the ink discharge surface and a support surface of a jig; (d) contacting the first of the plurality of plates and a second of the plurality of plates, wherein the at least one hole through each of the plurality of plates defines a flow channel through the plurality of plates; (e) contacting the fixing plate and at least a pair of abutment portions of the jig, wherein the pair of abutment portions of the jig are positioned adjacent to and are raised with respect to the support surface of the jig, wherein a length of the fixing plate is greater than a length of each of the nozzle plate, the first one of the plurality of plates, and the second one of the plurality of plates; and (f) curing the adhesive agent, wherein step (d) is performed after a performance of step (c), wherein step (e) is performed at substantially the same time as a performance of step (d); and wherein step (f) is performed after a performance of steps (c), (d), and (e).