Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kia Silverbrook0
Date of Patent
November 28, 2006
0Patent Application Number
111728970
Date Filed
July 5, 2005
0Patent Primary Examiner
Patent abstract
A printhead assembly includes a substrate that defines a plurality of fluid inlet conduits. A plurality of nozzle assemblies is positioned on the substrate. Each nozzle assembly defines a nozzle chamber in fluid communication with a respective fluid inlet conduit and a nozzle opening from which fluid is ejected. A guard member is positioned on the substrate and is spaced from the nozzle assemblies. The guard member defines a plurality of apertures that are aligned with respective nozzle openings. The substrate and the guard member are of substantially the same material.
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