Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2006-09-19
2006-09-19
Patel, Vip (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S062000
Reexamination Certificate
active
07108356
ABSTRACT:
There is disclosed an ink jet printhead that has a plurality of nozzles3and a bubble forming chamber7corresponding to each nozzle3. The bubble forming chamber of each nozzle having at least one side wall6and at least one heater element10suspended within each of the bubble forming chambers respectively. 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 drop16of an ejectable liquid (such as ink) through an ejection aperture5in each nozzle3, to effect printing. The heater element10spaced from the at least one side wall6of the bubble forming chamber7. The spacing between the heater element10and the at least one side wall6is between 0.1 microns and 20 microns. The nucleation and growth of a gas bubble causes the pressure pulse that ejects ink from the nozzle aperture. By laterally enclosing the bubble with at least one of the side walls of the chamber, most of the pressure can be dissipated by ejecting ink through the nozzle.
REFERENCES:
patent: 4549191 (1985-10-01), Fukuchi et al.
patent: 4794410 (1988-12-01), Taub et al.
patent: 4797692 (1989-01-01), Ims
patent: 4827294 (1989-05-01), Hanson
patent: 4931813 (1990-06-01), Pan et al.
patent: 4965594 (1990-10-01), Komuro
patent: 4982199 (1991-01-01), Dunn
patent: 5444475 (1995-08-01), Mitani
patent: 5534898 (1996-07-01), Kashino et al.
patent: 5706041 (1998-01-01), Kubby
patent: 5710070 (1998-01-01), Chan
patent: 5831648 (1998-11-01), Mitani et al.
patent: 5841452 (1998-11-01), Silverbrook
patent: 5856836 (1999-01-01), Silverbrook
patent: 6543879 (2003-04-01), Feinn et al.
patent: 2004/0160493 (2004-08-01), Silverbrook
patent: 1211072 (2002-06-01), None
patent: WO 01/66357 (2001-09-01), None
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. Please note, this document was provided in copending U.S. Appl. No. 10/303,348.
Dymetman, M., and Copperman, M., “Intelligent Paper in Electronic Publishing, Artist Imaging, and Digital Typography, Proceedings of EP '98”, Mar./Apr. 1998, Springer Verlag LNCS 1375, pp. 392-406.
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.
Choi Han Samuel
Patel Vip
Silverbrook Research Pty Ltd
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