(19)
(11) EP 1 508 443 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.03.2005 Bulletin 2005/11

(43) Date of publication A2:
23.02.2005 Bulletin 2005/08

(21) Application number: 04024057.4

(22) Date of filing: 15.07.1998
(51) International Patent Classification (IPC)7B41J 2/045, B41J 2/14, B41J 2/16
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

(30) Priority: 15.07.1997 AU PO806697
15.07.1997 AU PO807297
15.07.1997 AU PO807197
15.07.1997 AU PO804797
15.07.1997 AU PO803597
15.07.1997 AU PO804497
15.07.1997 AU PO806397
15.07.1997 AU PO805697
15.07.1997 AU PO806997
15.07.1997 AU PO804997
15.07.1997 AU PO803697
15.07.1997 AU PO804897
15.07.1997 AU PO807097
15.07.1997 AU PO806797
15.07.1997 AU PO800197
15.07.1997 AU PO804197
15.07.1997 AU PO800497
15.07.1997 AU PO793597
15.07.1997 AU PO793697
15.07.1997 AU PO806197
15.07.1997 AU PO805497
15.07.1997 AU PO806597
15.07.1997 AU PO805597
15.07.1997 AU PO805397
15.07.1997 AU PO793397
15.07.1997 AU PO795097
15.07.1997 AU PO794997
15.07.1997 AU PO806097
15.07.1997 AU PO805997
15.07.1997 AU PO807397
15.07.1997 AU PO807697
15.07.1997 AU PO807597
15.07.1997 AU PO807797
15.07.1997 AU PO805897
09.06.1998 AU PP398398
09.06.1998 AU PP398298

(62) Application number of the earlier application in accordance with Art. 76 EPC:
98933350.5 / 0999933

(71) Applicant: Silverbrook Research Pty. Limited
Balmain, NSW 2041 (AU)

(72) Inventor:
  • Silverbrook, Kia
    Leichhardt NSW 2040 (AU)

(74) Representative: Moore, Barry et al
Hanna, Moore & Curley, 11 Mespil Road
Dublin 4
Dublin 4 (IE)

   


(54) Inkjet printer with electro-magnetically actuated ink plunger


(57) An inkjet printing nozzle arrangement comprising:
  • (a) a nozzle chamber having an ink ejection port at one end;
  • (b) a plunger constructed from soft magnetic material and positioned between said nozzle chamber and an ink chamber, said ink chamber allowing for the supply of ink to said nozzle chamber;
  • (c) an electric coil located adjacent to the plunger and electrically connected to a nozzle activation signal wherein upon activation of the activation signal, said plunger is caused by said coil to move from an ink loaded position to an ink ejection position thereby causing the ejection of ink from said ink ejection port.








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