Inkjet nozzle assembly having bilayered passive beam

Details Inkjet nozzle assembly having bilayered passive beam Inkjet nozzle assembly having bilayered passive beam

2011-07-05

2011-07-05

Do, An H (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S065000

Reexamination Certificate

active

07971971

ABSTRACT:
An inkjet nozzle assembly includes: a nozzle chamber having a nozzle opening and an ink inlet; and a thermal bend actuator for ejecting ink through the nozzle opening. The actuator includes: an active beam for connection to drive circuitry; a first passive beam fused to the active beam; and a second passive beam fused to the second first passive beam. The first passive beam is sandwiched between the active beam and the second passive beam such that when a current is passed through the active beam, the active beam expands relative to the passive beams, resulting in bending of the actuator and ejection of ink through the nozzle opening.

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