Patent ID: 6339881
Filing Date: 2002-01-22
Classification: B41J,Y10T

Abstract:
A method of fabricating a printhead for use in an ink jet printing device comprising the steps of:a) providing a substrate having at least one substantially planar surface; b) forming an array of heating elements on said surface and forming electrodes on said substrate for enabling addressing of each heating element; c) depositing an insulating layer on said planar surface; d) treating said insulating layer to expose said heating elements; e) forming an ink channel plate having at least one ink reservoir and multiple ink channels; f) forming one of (i) a key element on said channel plate and a cooperative keyway element on said insulating layer, and (ii) a key element on said insulating layer and a cooperative keyway element on said channel plate and; g) adhesively securing said channel plate to said substrate using said key element and said cooperative keyway element as an alignment aid to achieve proper positioning of said ink channels relative to said heating elements.