Patent ID: 7261392

Claim:
A printhead integrated circuit which comprises a substrate that incorporates drive circuitry and defines ink inlet channels; nozzle chamber structures positioned on the substrate, each nozzle chamber structure defining a nozzle chamber in fluid communication with a respective ink inlet channel and an ink ejection port in fluid communication with the nozzle chamber; cantilevered ink ejecting mechanisms pivotally displaceable with respect to the substrate to eject drops of ink from the ink ejection ports, such that during use, the ink flow through the ink inlet channel into each respective nozzle chamber is in the same direction as the drops ejected through the ink ejection port; and actuators connected to the drive circuitry for individual actuation, each actuator including a force transmitting portion that is substantially linearly displaceable upon receipt of a signal from the drive circuitry and is connected to a respective cantilevered ink ejecting mechanism to displace the cantilevered ink ejecting mechanism pivotally with respect to the substrate.