Patent ID: 7832837

Claim:
A print assembly comprising: an elongate carrier that is mountable on a support structure of a printer to be positioned an operative distance from a platen of the printer; a plurality of printhead integrated circuits mounted on the carrier, the printhead integrated circuits being provided in a number and configuration such that the printhead integrated circuits define an elongate printing zone between the carrier and the platen, each printhead integrated circuit incorporating a plurality of nozzle arrangements, each nozzle arrangement comprising a nozzle, an ink chamber, an ink inlet, an actuator, and a drive circuit to achieve the ejection of ink from the nozzle arrangement; a plurality of controllers positioned on the carrier, each controller being operatively connected to a respective group of the printhead integrated circuits to control operation thereof; a plurality of capping devices mounted on the carrier to correspond with respective printhead integrated circuits, each capping device being reciprocally displaceable to cap the respective printhead integrated circuits; and an elongate camshaft positioned along the elongate carrier and along the plurality of capping devices and a translating member interconnecting the elongate camshaft and the plurality of capping devices, so that rotational movement of the elongate camshaft driven by a motor results in reciprocal movement of the plurality of capping devices between their operative to cap the printhead integrated circuits and inoperative positions in which ink can be ejected from the printhead integrated circuits, wherein said print assembly comprises more than 150,000 said nozzle arrangements.