(19)
(11) EP 0 855 280 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
10.03.1999 Bulletin 1999/10

(43) Date of publication A2:
29.07.1998 Bulletin 1998/31

(21) Application number: 98300566.1

(22) Date of filing: 27.01.1998
(51) International Patent Classification (IPC)6: B41J 2/415
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 28.01.1997 JP 14381/97

(71) Applicant: SEIKO INSTRUMENTS INC.
Chiba-shi, Chiba 261 (JP)

(72) Inventors:
  • Kawaguchi, Kouji
    Mihama-ku, Chiba-shi, Chiba (JP)
  • Iwaki, Tadao
    Mihama-ku, Chiba-shi, Chiba (JP)
  • Kawawada, Naoki
    Mihama-ku, Chiba-shi, Chiba (JP)
  • Sato, Tatsuru
    Mihama-ku, Chiba-shi, Chiba (JP)
  • Oohama, Satoshi
    Mihama-ku, Chiba-shi, Chiba (JP)
  • Kuwahara, Seiji
    Mihama-ku, Chiba-shi, Chiba (JP)
  • Okano, Hiroshi
    Mihama-ku, Chiba-shi, Chiba (JP)

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

   


(54) Record head


(57) A record head is constituted such that an ink storage groove for temporarily storing ink on a substrate is formed along a longitudinal direction of a slit, the ink storage groove is disposed in an ink chamber formed between the substrate and the slit plate and is disposed at an upper side, or a lower side both sides of the slit in a direction of a face of the substrate by which a sufficient amount of ink is stably supplied to the slip portion at high speed and prevention of discharge phenomenon and acceleration of the record speed are achieved. Also, a record head having a photoconductive film formed on a transparent electrode, means for supplying ink on the photoconductive film, and light irradiating means for supplying light on to the photoconductive film in a form of a pulse and in correspondence with a desired pixel.






Search report