Patent ID: 7819507

Claim:
A printhead for an inkjet printer, the printhead comprising: a printhead integrated circuit (IC) having an array of nozzles for ejecting ink; and, a support structure for mounting the printhead IC within the printer, the support structure having ink conduits for supplying the array of nozzles with ink, the ink conduits have a meniscus anchor for pinning part of an advancing meniscus of ink to divert the advancing meniscus from a path of the ink conduits the advancing meniscus would otherwise take, the meniscus anchor being a weir formation to partially obstruct ink flow such that, when priming the printhead, the weir formation preferentially primes an upstream section of the ink conduit, the upstream section of the ink conduit having cavities in its uppermost surface that are intended to hold pockets of air after the printhead has been primed.