Patent ID: 7758142

Claim:
A print assembly for pagewidth inkjet printing, the print assembly comprising an elongate carrier that is mountable on a support structure of a printer in an operative position with respect to a platen of the printer; a number of printhead chips positioned on the carrier, the printhead chips each having a plurality of ink ejection nozzle arrangements on a wafer substrate, each nozzle arrangement having an actuator for ejecting ink from an associated nozzle when a resistive element of said actuator is heated by an electrical current supplied by drive circuitry on the wafer substrate; and a plurality of controllers, each controller mounted on a respective printed circuit board that is positioned on the carrier, each controller being connected to a plurality of the printhead chips via individual flexible printed circuit boards of each printhead chip and to the other controllers, and each controller being configured to control operation of at least 10,000 nozzle arrangements of the connected printhead chips.