Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2010-05-04
2011-10-04
Mruk, Geoffrey (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S056000
Reexamination Certificate
active
08029107
ABSTRACT:
An ink jet printhead has a plurality of nozzles and a bubble forming chamber corresponding to each of the nozzles respectively. The bubble forming chambers are adapted to contain a bubble forming liquid and a heater element is disposed in each of the bubble forming chambers respectively. The heater elements are configured for thermal contact with the bubble forming liquid and, a pair of electrodes for each of the heater elements are positioned adjacent each other such that the heater element provides a single current path between the electrodes of each pair. Each of the heater elements has a double omega shape in which a smaller, inner omega shape is concentric with, and encircled by, a larger, outer omega shape.
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Mruk Geoffrey
Silverbrook Research Pty Ltd
LandOfFree
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