(19)
(11) EP 1 396 344 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.07.2004 Bulletin 2004/31

(43) Date of publication A2:
10.03.2004 Bulletin 2004/11

(21) Application number: 03026325.5

(22) Date of filing: 07.08.1992
(51) International Patent Classification (IPC)7: B41J 2/175
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 28.01.1992 JP 1283492
19.02.1992 JP 3222692
16.03.1992 JP 5815192
26.06.1992 JP 19340292

(62) Application number of the earlier application in accordance with Art. 76 EPC:
02076904.8 / 1241012
00200827.4 / 1013444

(71) Applicant: SEIKO EPSON CORPORATION
Shinjuku-ku, Tokyo 163-0811 (JP)

(72) Inventors:
  • Mochizuki, Seiji
    Suwa-shi Nagano-ken (JP)
  • Nakamura, Masahiro
    Suwa-shi Nagano-ken (JP)
  • Kawakami, Kasuhisa
    Suwa-shi Nagano-ken (JP)
  • Ohshima, Keiichi
    Suwa-shi Nagano-ken (JP)
  • Yoshida, Masanori
    Suwa-shi Nagano-ken (JP)

(74) Representative: Sturt, Clifford Mark et al
Miller Sturt Kenyon 9 John Street
London WC1N 2ES
London WC1N 2ES (GB)

   


(54) Ink tank cartridge and container therefor


(57) An ink tank cartridge (5) is disclosed including a housing (11,50) removeably mounted onto an ink supply needle (14,90) of the ink-jet type recording apparatus body. The housing being provided with an ink supply port (15,53,71) projecting from a bottom surface of the housing both inwardly and outwardly. A porous member (21,64) for impregnating ink is positioned inside the housing abutting against the ink supply port through a filter (17,55). The ink tank cartridge being further provided with a packing member (19,57,73) resiliently abutting against an outer periphery of the ink supply needle at the end of the ink supply port. An end opening is sealed with a sealing member (20,60,77) through which the ink supply needle penetrates.
Accordingly, the ink tank cartridge of the invention is advantageous in that the ink supply needle does not require a sharp tip, air is prevented from entering the ink supply path of the recording apparatus, and a tight air-seal between the ink supply needle and the ink tank can be maintained.






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