Patent ID: 6624552
Filing Date: 2003-09-23
Classification: B41J,Y10T

Abstract:
An ink jet recording head comprising:a piezoelectric vibrator unit, comprising: drive piezoelectric vibrators composed of common internal electrodes and discrete internal electrodes laminated with a piezoelectric material in between; dummy piezoelectric vibrators including at least the common internal electrodes and the piezoelectric material; a fixation base on which one end portions of the drive piezoelectric vibrators and the dummy piezoelectric vibrators are fixed such that the other end portions therefor are to be free ends; and a conductive layer electrically connected to all internal electrodes provided in the dummy piezoelectric vibrators; a channel unit including pressure generating chambers communicating with a reservoir and associated nozzle orifices to be pressurized by the associated drive piezoelectric vibrators; and a flexible cable connected to the conductive layer formed on the drive piezoelectric vibrators and the dummy piezoelectric vibrators for providing drive signal thereto.