Patent ID: 7401895

Claim:
A printhead integrated circuit (IC) for an inkjet printer, the printhead IC comprising: a wafer substrate; a plurality of nozzle chamber structures positioned on the substrate to define nozzle chambers and an ink ejection nozzle in fluid communication with each nozzle chamber; drive control and drive circuitry connectable to data and power supplies; a plurality of elongate actuators attached to the substrate for displacement towards and away from the substrate in response to actuating signals from the drive control and drive circuitry; and a plurality of ink ejection members attached to respective actuators, each ejection member being positioned for acting on ink within respective nozzle chambers to eject a drop of ink from the ink ejection nozzle, wherein the drive control and drive circuitry has traces between each actuator and the substrate and oriented transverse to a longitudinal axis of each respective actuator.