Patent ID: 6402296
Filing Date: 2002-06-11
Classification: B41J

Abstract:
A printhead for an inkjet printer providing high resolution printing, comprising:a substrate including at least one ink ejector on a surface of said substrate; a metal orifice plate having a plurality of orifices disposed through said orifice plate from a first surface proximate said surface of said substrate to a second surface distal to said surface of said substrate, said orifice plate having a thickness in the range of 20 to less than 25 microns and at least two orifices of said plurality of orifices having centers at said second surface spaced apart by a distance having a range of 76 to 94 microns and each of said at least two orifices having an orifice opening at said second surface with a diameter having a range of 12 to 14 microns; and a polymeric barrier layer securing the orifice plate to the substrate, said barrier layer defining a plurality of firing chambers each arranged in correspondence with a respective ink ejector, wherein high resolution inkjet printing is realized.