Patent ID: 7303254
Filing Date: 2007-12-04
Classification: B41J,G06F,G06K,G11C,H04N

Abstract:
1. A print assembly for a wide format printer, the print assembly comprising a plurality of printhead modules, each of the plurality of printhead modules incorporating a printhead chip and an elongate carrier that is mountable on a support structure of the printer in an operative position with respect to a platen of the wide format printer and the plurality of modules together incorporating at least fifty thousand nozzle arrangements, the printhead chip of each of the plurality of modules being positioned so that the printhead chips are capable of ejecting ink drops into a printing zone defined by the platen; and, a flexible printed circuit board (PCB) that is also positioned on each of the plurality of printhead modules and that is configured to control operation of the printhead chips; wherein each printhead chip is the product of an integrated circuit fabrication process, and each printhead chip includes a wafer substrate and a CMOS drive circuitry layer positioned on the water substrate with the nozzle arrangements positioned on the wafer substrate and the CMOS drive circuitry layer.