Thermal ink jet printhead with small surface area heaters

Details Thermal ink jet printhead with small surface area heaters Thermal ink jet printhead with small surface area heaters

2005-12-13

2005-12-13

Stephens, Juanita D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S062000

Reexamination Certificate

active

06974209

ABSTRACT:
There is disclosed an ink jet printhead which comprises a plurality of nozzles and one or more heater elements corresponding to each nozzle. Each heater element is configured to heat a bubble forming liquid in the printhead to a temperature above its boiling point to form a gas bubble therein. The generation of the bubble causes the ejection of a drop of an ejectable liquid (such as ink) through the respective corresponding nozzle, to effect printing. Each heater element is solid and configured such that a heater surface area of less than 500 square microns is heated for bubble formation in the liquid.

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P. DeMoor, The Fabrication and Reliability Testing of Ti/TiN Heaters, Sep. 1999, vol. 3874. pp. 284-293.

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