(19)
(11) EP 0 778 135 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.10.1997 Bulletin 1997/43

(43) Date of publication A2:
11.06.1997 Bulletin 1997/24

(21) Application number: 96119562.5

(22) Date of filing: 05.12.1996
(51) International Patent Classification (IPC)6: B41J 2/06, B41J 2/14
(84) Designated Contracting States:
DE FR GB

(30) Priority: 08.12.1995 JP 320112/95

(71) Applicant: NEC CORPORATION
Tokyo (JP)

(72) Inventors:
  • Shima, Kazuo
    Minato-ku, Tokyo (JP)
  • Suetsugu, Junichi
    Minato-ku, Tokyo (JP)
  • Uematsu, Ryosuke
    Minato-ku, Tokyo (JP)
  • Minemoto, Hitoshi
    Minato-ku, Tokyo (JP)
  • Hagiwara, Yoshihiro
    Minato-ku, Tokyo (JP)

(74) Representative: Glawe, Delfs, Moll & Partner 
Patentanwälte Postfach 26 01 62
80058 München
80058 München (DE)

   


(54) Electrostatic ink jet recording device


(57) In an electrostatic ink jet recording device, an ink chamber stores liquid ink containing charged toner particles. An ejection opening or slit is formed in one end portion of the ink chamber. An electrophoresis electrode is positioned at the other end portion of the ink chamber facing the one end portion. A plurality of record electrodes are arranged in parallel in the ejection opening. A counter electrode faces the record electrodes with the intermediary of a path for transporting a recording medium. Discharging means is located upstream of the counter electrode with respect to the intended direction of medium transport. The discharging means dissipates any undesirable charge deposited on the recording medium before the medium reaches the counter electrode.






Search report