Patent ID: 7771018
Filing Date: 2010-08-10
Classification: B41J,G06F,G06K,G07F,G11C,H04N,Y10T

Abstract:
1. An ink ejection nozzle arrangement for an inkjet printer, said nozzle arrangement comprising: a wafer substrate with an etched ink chamber and ink channel leading to the chamber; an ink ejection nozzle defined over the chamber with an ejection port etched therein; a dielectric actuator arm attached to the substrate via a post on the substrate, said arm having a heating means formed of an electrically conductive material attached at a lower portion thereof proximate said post, wherein the arm extends through a slot in the chamber; and a paddle fast with the arm inside said chamber, the paddle interposed between the ink channel and the ejection port, wherein the paddle is substantially bowl shaped with a depression portion of such bowl distal from the ejection port to facilitate the ejection of ink from the ink chamber.