Patent ID: 7441865
Filing Date: 2008-10-28
Classification: B41J

Abstract:
1. An inkjet printhead assembly comprising: a monolithic wafer substrate with a front side and a backside, a plurality of nozzles formed on the frontside, each nozzle having a respective nozzle inlet extending partially through the monolithic wafer substrate, and a plurality of ink supply channels defined in the backside surface of the monolithic wafer substrate and extending longitudinally along the backside of the substrate, the ink supply channels being deep enough to meet the nozzle inlets such that ink fed to the backside surface of the substrate is supplied to the nozzles on the frontside, and each ink supply channel being divided into sections by transverse bridges; and, a molded ink manifold bonded to the backside of the printhead by an adhesive film having a plurality of openings, the ink manifold having a plurality of outlets, each outlet being aligned with one of the plurality of openings and each of the plurality of openings is positioned over one of the transverse bridges such that ink is supplied from the ink manifold to two channel sections on either side of the transverse bridge.