Fluid ejection device with a through-chip...

Details Fluid ejection device with a through-chip... Fluid ejection device with a through-chip...

2006-10-24

2006-10-24

Meier, Stephen (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S065000

Reexamination Certificate

active

07125103

ABSTRACT:
A fluid ejection device includes a substrate that defines a plurality of nozzle chambers. A drive circuitry layer is positioned on one side of the substrate and contains drive circuitry. A structural layer is positioned on an opposite side of the substrate and defines a plurality of ink ejection ports in fluid communication with respective nozzle chambers. A plurality of micro-electromechanical actuators is fast at one end with the substrate and extends into respective nozzle chambers. Each actuator includes an actuating member that is connected to the drive circuitry and anchored at one end to the substrate. Each actuating member is displaceable between a quiescent position and an active position to eject fluid from the respective ejection ports.

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