Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2008-06-17
2008-06-17
Do, An H (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S065000
Reexamination Certificate
active
07387364
ABSTRACT:
A nozzle arrangement for a printhead integrated circuit is configured to be replicated on a wafer substrate incorporating drive circuitry so that the printhead integrated circuit comprises an array of the nozzle arrangements. The nozzle arrangement includes a static nozzle chamber structure extending from the wafer substrate and bounding an ink inlet channel defined through the wafer substrate. A dynamic nozzle chamber structure is arranged on the static nozzle chamber structure so that the static and dynamic nozzle chamber structures together define a nozzle chamber in fluid communication with the ink inlet channel. The dynamic nozzle chamber structure defines an ink ejection port and is displaceable relative to the substrate so that ink is ejected from the ink ejection port due to volumetric change in the nozzle chamber. An actuating mechanism is fast with the substrate and the dynamic nozzle chamber structure and is electrically connected to the drive circuitry to receive drive signals from the drive circuitry so that the dynamic nozzle chamber structure is reciprocally displaced to eject ink from the ink ejection port.
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Do An H
Silverbrook Research Pty Ltd
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