Patent ID: 7040738
Filing Date: 2006-05-09
Classification: B41J,B82Y,G06F,G06K,G11C,H04N

Abstract:
1. A printhead chip which comprises a substrate that incorporates a drive circuitry layer and defines a plurality of ink inlet channels; a plurality of 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; a plurality of ink ejecting members positioned in respective nozzle chambers and displaceable towards and away from respective ink ejection ports to eject drops of ink from said ports; a plurality of actuators connected to the drive circuitry, each actuator including a force transmitting portion that is substantially linearly displaceable upon receipt of a signal from the drive circuitry layer; and a plurality of micro-mechanical translating mechanisms interposed between respective force transmitting portions and associated ink ejecting members such that displacement of the force transmitting portions results in said displacement of respective ink ejecting members.