Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2002-08-21
2008-08-05
Do, An H (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S065000
Reexamination Certificate
active
07407269
ABSTRACT:
An ink jet printhead chip includes a substrate. Drive circuitry is positioned in the substrate. A plurality of nozzle arrangements is positioned on the substrate. Each nozzle arrangement includes nozzle chamber walls and a roof wall that define a nozzle chamber and an ink ejection port in the roof wall in fluid communication with the nozzle chamber. An ink pusher is operatively positioned with respect to the nozzle chamber and is displaceable through a range of between 1 micron and 5 microns to eject ink from the ink ejection port. An actuator is connected to the drive circuitry and the ink pusher to displace the ink pusher on receipt of an electrical signal from the drive circuitry.
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Do An H
Silverbrook Research Pty Ltd
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