Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2007-07-24
2007-07-24
Luu, Matthew (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S054000
Reexamination Certificate
active
10728804
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 aperture in each nozzle, to effect printing. In each nozzle, the distance between the heater element and the ejection aperture is less than 50 microns. This configuration of printhead reduces the mass of ink moved in order to eject an ink drop, and provides for a relatively high efficiency of operation.
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Lebron Jannelle M.
Silverbrook Research Pty Ltd
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