Micromachined fluid ejectors using piezoelectric actuation

Incremental printing of symbolic information – Ink jet – Ejector mechanism

Reexamination Certificate

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C347S068000

Reexamination Certificate

active

07467857

ABSTRACT:
A micromachined fluid ejector includes an ejector body having a fluid cavity for holding fluid to be ejected and a piezoelectric actuator for ejecting the fluid. A nozzle plate is placed in operable association with the ejector body. The configuration of the nozzle plate is selected to adjust a volume of the fluid cavity to obtain a desired mechanical impedance matching between the fluid and the actuator.

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patent: 2004/0179064 (2004-09-01), Zapka et al.
patent: 2004/0218022 (2004-11-01), Silverbrook
patent: WO 01/021172 (2001-01-01), None

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