Patent ID: 6371602
Filing Date: 2002-04-16
Classification: B41J

Abstract:
A process for forming an ink-jet recording head including a plate member having a first side and a second flat side opposite the first side, the second flat side caused to vibrate by a piezoelectric device to control the pressure of ink in a plurality of pressure chambers and to eject the ink from nozzles communicating with the pressure chambers, wherein the piezoelectric device includes a polarized sheet type piezoelectric device, having substantially a same width and length as the second flat side of the plate member, and electrodes disposed on the sheet type piezoelectric device, the process comprising:forming the electrodes on both surfaces of the sheet type piezoelectric device; joining the piezoelectric device to the plate member on the second flat side, the plate member made of a material having a nature similar or identical to the sheet type piezoelectric device, to form a laminate; baking the laminate; forming the plurality of pressure chambers in the plate member, in a form of grooves partitioned with sidewalls, on the first side of the plate member the plurality of pressure chambers being formed after baking the laminate; covering the pressure chambers with a sheet-like cover member; and polarizing the sheet type piezoelectric device.