(19)
(11) EP 0 803 358 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.03.1999 Bulletin 1999/09

(43) Date of publication A2:
29.10.1997 Bulletin 1997/44

(21) Application number: 97302780.8

(22) Date of filing: 23.04.1997
(51) International Patent Classification (IPC)6: B41J 2/015
(84) Designated Contracting States:
DE FR GB

(30) Priority: 23.04.1996 JP 101596/96
10.01.1997 JP 3280/97

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

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

(74) Representative: Sturt, Clifford Mark et al
J. MILLER & CO. 34 Bedford Row, Holborn
London WC1R 4JH
London WC1R 4JH (GB)

   


(54) Recording apparatus as well as recording unit and recording head for using same apparatus


(57) In ink jet recording methods, the continuous type is high in recording speed but difficult to simplify the device due to restoration of unnecessary ink or the like, while the on-demand type is simplified in device structure but difficult to speed up recording rate. An recording apparatus employing a recording head structured by: having a head section formed by a transparent electrode 2a formed on a substrate, a photoconductive layer 4 formed on the transparent electrode 2a, and a means for supplying ink 6 onto the photoconductive layer 4, and an opposing electrode la, in this order; the means for supplying ink 6 and the opposing electrode la being arranged to have a gap sufficient for inserting a medium to be recorded therethrough; having a power supply 3 for applying voltage to between the transparent electrode 2a and the opposing electrode la, and a light irradiating means 5 for supplying light corresponding to a desired image pixel to the potoconductive layer, enabling high-precision and high-quality output printing of characters.






Search report