(19)
(11) EP 1 003 640 A1

(12)

(43) Date of publication:
31.05.2000 Bulletin 2000/22

(21) Application number: 98940913.1

(22) Date of filing: 14.08.1998
(51) International Patent Classification (IPC)7: B41J 2/175
(86) International application number:
PCT/US9816/964
(87) International publication number:
WO 9908/876 (25.02.1999 Gazette 1999/08)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 18.08.1997 US 914832
09.03.1998 US 37550

(71) Applicant: Hewlett-Packard Company
Palo Alto,California 94303-0890 (US)

(72) Inventors:
  • PAWLOWSKI, Norman, E., Jr.
    Corvallis, OR 97330 (US)
  • HAUCK, Mark
    Corvallis, OR 97330 (US)
  • BARINAGA, John, A.
    Portland, OR 97210 (US)
  • WENZEL, Donald, E.
    Albany, OR 97321 (US)

(74) Representative: Colgan, Stephen James 
CARPMAELS & RANSFORD43 Bloomsbury Square
London WC1A 2RA
London WC1A 2RA (GB)

   


(54) PRINTING SYSTEM WITH AIR ACCUMULATION CONTROL MEANS ENABLING A SEMIPERMANENT PRINTHEAD WITHOUT AIR PURGE