Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2007-02-20
2007-02-20
Nguyen, Lamson (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S049000, C347S059000
Reexamination Certificate
active
11281673
ABSTRACT:
A printhead integrated circuit for a pagewidth printhead includes an elongate substrate that defines a plurality of ink inlet passages. A drive circuitry layer is positioned on the substrate. A plurality of nozzle chamber structures is positioned on the substrate and defines nozzle chambers in fluid communication with respective ink inlet passages and ink ejection ports in fluid communication with respective nozzle chambers. A plurality of ink ejection members is received in respective nozzle chambers. The ink ejection members are reciprocally displaceable to eject ink from the ink ejection ports. Elongate actuators are each fast at a fixed end with the substrate and are attached to respective ink ejection members at a free end. The actuators are connected to the drive circuitry layer to displace respective ink ejection members on receipt of electrical pulses from the drive circuitry layer. The nozzle chamber structures and associated elongate actuators are positioned on the substrate to define at least one pair of longitudinally extending rows of nozzle chamber structures adjacent each other.
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Nguyen Lamson
Silverbrook Research Pty Ltd
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