Patent ID: 6505920
Filing Date: 2003-01-14
Classification: B41J

Abstract:
A continuous ink jet print head, comprising:an orifice plate defining an elongated array of ink jet orifices; an ink manifold for supplying ink to the orifices in said orifice plate, said ink manifold defining a cavity; at least one shear mode piezoelectric transducer means mechanically coupled to said orifice plate for vibrating said orifice plate approximately uniformly along a line of the array of ink jet orifices to achieve synchronous stimulation of uniform motion of said orifice plate, wherein said at least one piezoelectric transducer means are located inside said cavity, or outside said manifold; and a poling vector associated with the at least one piezoelectric transducer wherein the poling vector is oriented substantially perpendicular to a plane of the orifice plate.