Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2009-02-11
2010-06-22
Do, An H (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
Reexamination Certificate
active
07740342
ABSTRACT:
A unit cell for a thermal inkjet printhead includes a substrate portion that defines an ink supply passage, Drive circuitry and interconnect layers are positioned on the substrate portion. A nozzle plate defining a nozzle is provided. Side walls depend from the nozzle plate and are positioned on the substrate portion to define an ink chamber. A heater element is connected to the drive circuitry and is positioned intermediate the nozzle plate and the substrate portion. The heater element is suspended in the ink chamber in alignment with the nozzle and is shaped to be symmetrical about two planes that intersect along an axis extending through a center of the nozzle.
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Do An H
Silverbrook Research Pty Ltd
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