Patent ID: 6290331
Filing Date: 2001-09-18
Classification: B41J

Abstract:
A printhead for use in an ink delivery system comprising:a substrate comprising at least one ink ejector thereon; andan orifice plate member comprised of at least one organic polymer composition positioned over and above said substrate, said orifice plate member further comprising:a top surface;a bottom surface;at least one recess in said orifice plate member beginning at said top surface thereof and terminating at a position within said orifice plate member between said top surface and said bottom surface thereof, said recess comprising an upper end, a lower end, and a side wall therebetween, said upper end comprising a first opening therein and said lower end comprising a bottom wall therein, said bottom wall comprising a second opening therethrough, said first opening being larger than said second opening, said bottom wall of said recess being substantially parallel to said top surface of said orifice plate member, with said side wall being oriented at an angle greater than 90.degree. relative to said bottom wall so that said side wall tilts outwardly from said bottom wall at an obtuse angle relative thereto; andat least one ink transfer bore in fluid communication with said recess, said bore beginning at said lower end of said recess and terminating at said bottom surface of said orifice plate member.