Patent ID: 6062679
Filing Date: 2000-05-16
Classification: B41J

Abstract:
A printhead for use in an ink cartridge comprising:a first substrate having opposed surfaces and a plurality of ink vaporization chambers formed therein, a second substrate having opposed surfaces, said first substrate being disposed on said second substrate;at least one ink ejector disposed on a first surface of said opposed surfaces of said second substrate;an orifice plate member positioned over a first surface of said opposed surfaces of said first substrate, said orifice plate member further comprising a first orifice plate surface, a second orifice plate surface, and a plurality of openings passing entirely through said orifice plate member from said first orifice plate surface to said second orifice plate surface, said first substrate being a barrier layer consisting of diamond-like carbon with which said second orifice plate surface of said orifice plate forms an interface.