Patent ID: 6106103
Filing Date: 2000-08-22
Classification: B41J

Abstract:
An ink-jet spraying device, comprising:an ink chamber for holding pigment particles of ink, said ink chamber disposed adjacent to an opening in a nozzle plate, said nozzle plate being disposed above said ink chamber;an ultrasonic vibration plate which vibrates in order to separate said pigment particles suspended in liquid ink;a channel containing said pigment particles suspended in said liquid ink, said channel located adjacent to and directly above said ultrasonic vibration plate;a plurality of individual electrodes disposed above said ink chamber and embedded in said nozzle plate;a common electrode disposed below and adjacent to said ink chamber; anda mesh grid for electrically charging the separated pigment particles, said mesh arid having a voltage applied thereto, said mesh grid being disposed between said common electrode and said channel containing said pigment particles suspended in said liquid ink.