Nozzle with magnetically actuated reciprocating plunger

Details Nozzle with magnetically actuated reciprocating plunger Nozzle with magnetically actuated reciprocating plunger

2011-05-31

2011-05-31

Do, An H (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S055000

Reexamination Certificate

active

07950773

ABSTRACT:
An inkjet drop ejection apparatus includes a chamber defined by a plunger spaced from an ejection nozzle; and an actuator for moving the plunger towards the nozzle, the actuator including a magnetic plate and a solenoid coil provided circumferentially between the magnetic plate and the plunger, the solenoid coil for inducing a magnetic field in at least one of the magnetic plate and the plunger. The plunger has defined therethrough a series of apertures arranged around a circumference of the plunger, the apertures substantially mapping a locus of the solenoid coil.

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