Patent ID: 7080895
Filing Date: 2006-07-25
Classification: B41J,G06K,Y10T

Abstract:
1. An inkjet printhead apparatus comprising: a plurality of nozzle chambers each having a nozzle aperture defined in one wall thereof for the ejection of ink out of said chamber and a second aperture for the insertion of an actuator mechanism; an ink supply channel interconnected with said nozzle chamber; and a paddle moveable by an actuator operable to eject ink from said nozzle chamber, said actuator including: a first portion located externally of said nozzle chamber, including a conductive heater portion; a second portion located internally of said nozzle chamber, supporting said paddle; and an interconnecting portion interconnecting said first portion and said second portion through said second aperture, said interconnecting portion further including a protruding shield formed adjacent said second aperture and positioned so as to restrict the flow of fluid through said second aperture.