Patent ID: 7131715
Filing Date: 2006-11-07
Classification: B41J,B82Y,G06F,G06K,G11C,H04N

Abstract:
1. A printhead integrated circuit which comprises a substrate that incorporates drive circuitry and defines a plurality of ink inlet channels; nozzle chamber structures positioned on the substrate and defining nozzle chambers in fluid communication with respective ink inlet channels and ink ejection ports in fluid communication with respective nozzle chambers; elongate micro-electromechanical actuators fast with the substrate at first ends to be connected to the drive circuitry so that second ends are displaceable reciprocally with respect to the substrate on receipt of electrical signals from the drive circuitry; ink ejection members positioned in respective nozzle chambers and displaceable with respect to the substrate to eject ink from associated ink ejection ports; and micro-mechanical lever mechanisms interposed between respective actuators and ink ejection members so that displacement of the actuators is transmitted to the ink ejection members.