Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2006-10-31
2006-10-31
Stephens, Juanita D. (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S056000
Reexamination Certificate
active
07128402
ABSTRACT:
There is disclosed an ink jet printhead which comprises a plurality of nozzles and one or more heater elements10corresponding to each nozzle. Each heater element10is configured to heat a bubble forming liquid11in the printhead to a temperature above its boiling point to form a gas bubble12therein. The generation of the bubble causes the ejection of a drop of an ejectable liquid (such as ink) through an ejection aperture5in each nozzle, to effect printing. In each nozzle, the gas bubble12displaces less than 4 picolitres of the ejectable liquid11to cause the ejection of the drop. This configuration provides for very efficient operation because less energy is required for the ejection of a small mass.
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Silverbrook Research Pty Ltd
Stephens Juanita D.
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