Patent ID: 6921154
Filing Date: 2005-07-26
Classification: B41J,G01D,G11B,Y10T

Abstract:
1. A printhead that comprises a substrate that defines a plurality of ink inlet conduits; a plurality of nozzle assemblies that are positioned on the substrate, each nozzle assembly defining a nozzle chamber in fluid communication with a respective ink inlet conduit and a nozzle opening from which ink is ejected; a plurality of alignment formations that are positioned on the substrate to extend from the substrate; a guard member that is positioned on the substrate and spaced from the nozzle assemblies, the guard member defining a plurality of apertures that correspond with respective nozzle openings; and a plurality of struts that are positioned on the guard member and are engageable with respective alignment formations, the struts and the alignment formations being positioned so that, when each strut engages an alignment formation, the apertures are aligned with respective nozzle openings.