(19)
(11) EP 0 342 995 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.07.1990 Bulletin 1990/27

(43) Date of publication A2:
23.11.1989 Bulletin 1989/47

(21) Application number: 89305077.3

(22) Date of filing: 19.05.1989
(51) International Patent Classification (IPC)4: B41J 2/335
(84) Designated Contracting States:
DE FR GB

(30) Priority: 20.05.1988 JP 124496/88
07.04.1989 JP 89155/88

(71) Applicant: NGK INSULATORS, LTD.
Nagoya-shi Aichi-ken (JP)

(72) Inventors:
  • Takeuchi, Yukihisa
    Nagoya-shi Aichi-ken 458 (JP)
  • Hirota, Toshikazu
    Nagoya-shi Aichi-ken 468 (JP)

(74) Representative: Paget, Hugh Charles Edward et al
MEWBURN ELLIS York House 23 Kingsway
London WC2B 6HP
London WC2B 6HP (GB)


(56) References cited: : 
   
       


    (54) Recording head


    (57) A recording head has a plurality of recording electrodes 2 and at least one return circuit electrode 3 mounted on substrates 1. The recording head further includes an insulating layer 4 consisting of an integrated mica, which is disposed between an array of the plurality of recording electrodes 2 and the return circuit electrode 3, so as to form a multi-layer structure which includes the recording and return circuit electrodes, and the insu­ating layer. The layers can be joined together using. adhesive layers 5.
    The recording and return circuit electrodes are formed of an electrically conductive material which has a higher degree of wear resistance than that of the integ­rated mica.







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