Inkjet printhead chip with a side-by-side nozzle arrangement...

Incremental printing of symbolic information – Ink jet – Ejector mechanism

Reexamination Certificate

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C347S056000

Reexamination Certificate

active

07434915

ABSTRACT:
An inkjet printhead chip includes an elongate wafer substrate that incorporates a drive circuitry layer. A plurality of nozzle arrangements is positioned side-by-side on the wafer substrate. Each nozzle arrangement has a generally rectangular layout when viewed in plan with longer sides extending from one longitudinal edge of the wafer substrate to an opposite longitudinal edge. Each nozzle arrangement includes a nozzle chamber structure that defines a nozzle chamber and an ink ejection port and that incorporates an active ink ejection member that is displaceable relative to the substrate to eject ink from the ink ejection port. An actuator arm is connected to the active ink ejection member. The actuator arm includes at least one passive anchor and a passive portion extending from the passive anchor and at least one active anchor and an active portion extending from the active anchor. The, or each active anchor is positioned proximate a shorter side of the nozzle arrangement and the, or each passive anchor is positioned inwardly of the active anchor. Both the active and passive portions interconnect the active ink ejection member and the anchors, with the portions at different distances from the substrate so that thermal expansion of the, or each active portion generates displacement of the arms relative to the substrate.

REFERENCES:
patent: 4199767 (1980-04-01), Campbell et al.
patent: 4423401 (1983-12-01), Mueller
patent: 4553393 (1985-11-01), Ruoff
patent: 4672398 (1987-06-01), Kuwabara et al.
patent: 4737802 (1988-04-01), Mielke
patent: 4864824 (1989-09-01), Gabriel et al.
patent: 5029805 (1991-07-01), Albarda et al.
patent: 5072241 (1991-12-01), Shibaike et al.
patent: 5258774 (1993-11-01), Rogers
patent: 5500685 (1996-03-01), Hattori et al.
patent: 5666141 (1997-09-01), Matoba
patent: 5719604 (1998-02-01), Inui
patent: 5903380 (1999-05-01), Motamedi et al.
patent: 5982521 (1999-11-01), Bessho et al.
patent: 1 648 322 (1971-03-01), None
patent: 29 05 063 (1980-08-01), None
patent: 32 45 283 (1984-06-01), None
patent: 34 30 155 (1986-02-01), None
patent: 37 16 996 (1988-12-01), None
patent: 39 34 280 (1990-04-01), None
patent: 43 28 433 (1995-03-01), None
patent: 195 16 997 (1995-11-01), None
patent: 195 17 969 (1995-11-01), None
patent: 195 32 913 (1996-03-01), None
patent: 196 23 620 (1996-12-01), None
patent: 196 39 717 (1997-04-01), None
patent: 0 092 229 (1983-10-01), None
patent: 0 398 031 (1990-11-01), None
patent: 0 427 291 (1991-05-01), None
patent: 0 431 338 (1991-06-01), None
patent: 0 478 956 (1992-04-01), None
patent: 0 506 232 (1992-09-01), None
patent: 0 510 648 (1992-10-01), None
patent: 0 627 314 (1994-12-01), None
patent: 0634273 (1995-01-01), None
patent: 0 713 774 (1996-05-01), None
patent: 0 737 580 (1996-10-01), None
patent: 0 750 993 (1997-01-01), None
patent: 0 882 590 (1998-12-01), None
patent: 2 231 076 (1974-12-01), None
patent: 792 145 (1958-03-01), None
patent: 1 428 239 (1976-03-01), None
patent: 2 262 152 (1993-06-01), None
patent: 58-112747 (1983-07-01), None
patent: 58 116165 (1983-07-01), None
patent: 359093356 (1984-05-01), None
patent: 61 025849 (1986-02-01), None
patent: 61 238453 (1986-11-01), None
patent: 01 105746 (1989-04-01), None
patent: 01 115639 (1989-05-01), None
patent: 01 128839 (1989-05-01), None
patent: 01 257058 (1989-10-01), None
patent: 01-306254 (1989-12-01), None
patent: 02 050841 (1990-02-01), None
patent: 2-92643 (1990-04-01), None
patent: 02-092643 (1990-04-01), None
patent: 2-108544 (1990-04-01), None
patent: 02 158348 (1990-06-01), None
patent: 02 162049 (1990-06-01), None
patent: 03-065348 (1991-03-01), None
patent: 03 653348 (1991-03-01), None
patent: 03 112662 (1991-05-01), None
patent: 40315335 (1991-07-01), None
patent: 03 180350 (1991-08-01), None
patent: 04 118241 (1992-04-01), None
patent: 04 126255 (1992-04-01), None
patent: 04 141429 (1992-05-01), None
patent: 4-353458 (1992-12-01), None
patent: 04 368851 (1992-12-01), None
patent: 05 28765 (1993-10-01), None
patent: 05 318724 (1993-12-01), None
patent: 6-91865 (1994-04-01), None
patent: 6-91866 (1994-04-01), None
patent: 2-265752 (1995-01-01), None
patent: 07 314665 (1995-12-01), None
patent: 03202351 (1999-12-01), None
patent: WO 94 18010 (1994-08-01), None
patent: WO 97 12689 (1997-04-01), None
Noworolski, J. Mark et al. “Process for in-plane and out-of-plane single-crystal-silicon thermal microactuators”. Sensors and Actuators, A, CH, Elsevier Sequoia S.A., Lausanne, vol. 55, No. 1, Jul. 15, 1996. pp. 65-69, XP004077979 ISSN: 0924-4247.
Ataka, Manabu et al, “Fabrication and Operation of Polymide Bimorph Actuators for Ciliary Motion System”. Journal of Microelectromechanical Systems, US, IEEE Inc. New York, vol. 2, No. 4, Dec. 1, 1993, pp. 146-150, XP000443412, ISSN: 1057-7157.
Yamagata, Yutaka et al, “A Micro Mobile Mechanism Using Thermal Expansion and its Theoretical Analysis”, Proceedeing of the workshop on micro electro mechanical systems (MEMS), US, New York, IEEE, vol. Workshop 7, Jan. 25, 1994, pp. 142-147, XP000528408, ISBN: 0-7803-1834-X.

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