Patent ID: 8210664

Claim:
A printhead for an inkjet printer, the printhead comprising: a plurality of printhead integrated circuits (ICs) with an array of nozzles for ejecting ink, the array of nozzles having a length extending the width of a media substrate to be printed by the inkjet printer; a support structure for supporting the printhead ICs, the support structure having an ink conduit for supplying the array of nozzles with ink, an inlet manifold upstream of the ink conduit for receiving ink from an ink supply and directing it to the ink conduit, an outlet manifold downstream of the ink conduit for receiving ink from the ink conduit, the conduit having a set of resonant frequencies at which ink in the conduit generates a standing wave in response to certain operating modes of the array of nozzles; and, a fluidic damper in the outlet manifold, the fluidic damper having a selected resonant frequency that damps the standing waves associated with each of the set of resonant frequencies such that the standing waves have an amplitude less than a maximum threshold; wherein, the fluidic damper has an air cavity and a tube fluidically connecting the air cavity and the ink conduit, such that during use, the ink conduit primes with ink when the printhead is primed while the air cavity does not prime.