Ink ejection devices within an inkjet printer

Details Ink ejection devices within an inkjet printer Ink ejection devices within an inkjet printer

2006-06-06

2006-06-06

Stephens, Juanita D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S056000

Reexamination Certificate

active

07055935

ABSTRACT:
An ink ejection device of a printer has a substrate that incorporates drive circuitry and defines a fluid inlet channel. A nozzle chamber structure is positioned on the substrate and defines a nozzle chamber in fluid communication with the fluid inlet channel and a fluid ejection port in fluid communication with the nozzle chamber. A micro-electromechanical actuator is positioned on the substrate and is electrically connected to the drive circuitry to be displaced relative to the substrate on receipt of an electrical current from the drive circuitry. A fluid ejecting member is positioned in the nozzle chamber and is connected to the actuator to eject fluid from the ink ejection port on displacement of the actuator; and a covering formation is positioned on the substrate and is configured to enclose the actuator.

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