Low voltage thermal ink jet printhead

Details Low voltage thermal ink jet printhead Low voltage thermal ink jet printhead

2006-09-19

2006-09-19

Hsieh, Shih-Wen (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07108355

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 bubble12causes 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 heater element10requires less than 8 volts and a current of less than 60 milliamps for less than 1.5 microseconds, in order to form the gas bubble12that causes the ejection of the drop of ejectable liquid11.

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The Fabrication and Reliability Testing of Ti/TiN Heaters, P. Demoor, Proceedings of SPIE, Micromachining and Microfabrication Process Technology V, vol. 3874, pp. 284-294.
Shamilian, John H., Baird, Henry S. & Wood, Thomas L. “A Retargetable Table Reader”, Bell Laboratories, Lucent Tech Inc. Crawfords Corner Rd, Room 2F-217, HOlmdel, NJ 07733-1988 USA.

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