Patent ID: 6161926
Filing Date: 2000-12-19
Classification: B41J,Y10T

Abstract:
An ink jet recording device comprising:a plurality of pressure chambers each being at least partially delimited, at both sides thereof, by side walls made of a dielectric material polarized in an up-and-down direction and flexible in an upper portion thereof;a plurality of first electrodes respectively positioned on an upper surface of each side wall;a plurality of second electrodes respectively positioned on a lower surface of each side wall;an under plate connected to each of said side walls, said under plate defining the bottom portion of each pressure chamber, wherein each of said second electrodes is positioned between one of said side walls and said under plate;a plurality of nozzles each being in fluid communication with a respective pressure chamber; anda control system electrically connected to said plurality of first electrodes and to said plurality of second electrodes for applying an electric field in a same direction as said direction of polarization of said side walls.