(19)
(11) EP 0 406 983 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.01.1991 Bulletin 1991/03

(43) Date of publication A2:
09.01.1991 Bulletin 1991/02

(21) Application number: 90201874.6

(22) Date of filing: 09.10.1984
(51) International Patent Classification (IPC)5: B41J 2/305
(84) Designated Contracting States:
DE FR GB IT NL

(30) Priority: 22.05.1984 JP 102841/84
22.05.1984 JP 102843/84

(60) Divisional application:
94101083.7 / 0605388
94101074.6 / 0614761

(62) Application number of the earlier application in accordance with Art. 76 EPC:
84306887.5 / 0139508

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

(72) Inventors:
  • Suzuki, Takashi
    Suwa-shi, Nagano-ken (JP)
  • Miyazawa, Yoshinori
    Suwa-shi, Nagano-ken (JP)
  • Matsuzawa, Masanao
    Suwa-shi, Nagano-ken (JP)

(74) Representative: DIEHL GLAESER HILTL & PARTNER 
Patentanwälte Postfach 19 03 65
80603 München
80603 München (DE)


(56) References cited: : 
   
       


    (54) Ink supply tank for a wire dot matrix printer head


    (57) A dot matrix printer head comprising an ink supply tank (2) containing ink absorbing means (61,62), the ink supply tank (2) having an ink supply port (41) which is arranged to receive ink from the ink absorbing means (61,62), characterised in that the ink absorbing means (61,62) comprises a plurality of ink absorbing members (61,62) arranged so that ink may flow from one to the other, the ink absorbing members (61,62) having pores of different average diameter such that the average diameter of the pores reduces in the direction of the ink supply port (41).







    Search report