Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2004-02-09
2008-12-16
Matthew, Luu (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S056000
Reexamination Certificate
active
07465036
ABSTRACT:
There is disclosed an ink jet printhead which comprises a plurality of nozzles3each defining a nozzle aperture5with a nozzle axis extending through the center of the nozzle aperture5and normal to the nozzle aperture. An ejectable liquid inlet31for establishing fluid communication between the nozzle aperture5and an ejectable liquid supply, the inlet having a central axis substantially parallel to the nozzle axis. A bubble forming chamber7corresponding to each nozzle respectively. At least one heater element10disposed in each bubble forming chamber7to heat a bubble forming liquid11to 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 element10is configured to nucleate the gas bubble at two or more regions such that each nucleation region is laterally offset from the nozzle aperture5. Gas bubbles nucleate from opposing sides of the nozzle aperture and converge to form a single bubble. The bubble formed is symmetrical about at least one plane extending along the nozzle axis. This enhances the control of the symmetry and position of the bubble within the chamber so the ejected drop trajectory is more reliable.
REFERENCES:
patent: 4376945 (1983-03-01), Hara et al.
patent: 4827294 (1989-05-01), Hanson
patent: 4870433 (1989-09-01), Campbell et al.
patent: 4914562 (1990-04-01), Abe et al.
patent: 4965594 (1990-10-01), Komuro
patent: 5534898 (1996-07-01), Kashino et al.
patent: 5706041 (1998-01-01), Kubby
patent: 5710070 (1998-01-01), Chan
patent: 5796416 (1998-08-01), Silverbrook
patent: 5841452 (1998-11-01), Silverbrook
patent: 5867200 (1999-02-01), Tajima et al.
patent: 5870121 (1999-02-01), Chan
patent: 5969005 (1999-10-01), Yamashita et al.
patent: 6019457 (2000-02-01), Silverbrook
patent: 6137443 (2000-10-01), Beatty
patent: 6183067 (2001-02-01), Matta
patent: 6213587 (2001-04-01), Whitman
patent: 6502925 (2003-01-01), Anagnostopoulos et al.
patent: 6543879 (2003-04-01), Feinn et al.
patent: 6680668 (2004-01-01), Gerber et al.
patent: 6775509 (2004-08-01), Shida et al.
patent: 1211072 (2002-06-01), None
patent: 1213146 (2002-06-01), None
patent: 62094347 (1987-04-01), None
patent: 04-257450 (1992-09-01), None
patent: 06-040037 (1994-02-01), None
patent: 07-060955 (1995-03-01), None
patent: 08-230192 (1996-09-01), None
patent: 09048121 (1997-02-01), None
patent: 2002-210951 (2002-07-01), None
patent: 2002-210977 (2002-07-01), None
patent: WO 00/23279 (2000-04-01), None
patent: WO 01/66357 (2001-09-01), None
English Translation of Japaneese Patent JP62094347A to Manaka, Junji. Translated Aug. 2007, McElroy Translation Company.
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.
Examiner's amendment from U.S. Appl. No. 10/302,617.
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.
Fidler Shelby
Matthew Luu
Silverbrook Research Pty Ltd
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