(19)
(11) EP 0 349 959 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.07.1991 Bulletin 1991/29

(43) Date of publication A2:
10.01.1990 Bulletin 1990/02

(21) Application number: 89112127.9

(22) Date of filing: 03.07.1989
(51) International Patent Classification (IPC)5: B41J 2/05
(84) Designated Contracting States:
DE ES FR GB IT

(30) Priority: 03.07.1988 JP 165386/88
06.07.1988 JP 168194/88
11.07.1988 JP 172294/88
11.07.1988 JP 172295/88
22.07.1988 JP 182879/88
09.01.1989 JP 2273/89

(71) Applicant: CANON KABUSHIKI KAISHA
Tokyo (JP)

(72) Inventors:
  • Koizumi, Yutaka
    Tokyo (JP)
  • Watanabe, Yasutomo
    Machida-shi Tokyo (JP)

(74) Representative: Tiedtke, Harro, Dipl.-Ing. et al
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4
80336 München
80336 München (DE)


(56) References cited: : 
   
       


    (54) Ink jet recording apparatus


    (57) A recording element unit comprises an electrical connecting member (125) having a holding member (111) formed by use of an electrically insulating material and a plurality of electroconductive members (107) arranged on said holding member (111), with one end of said electroconductive member (107) being exposed on one surface of said holding member (111) and the other end of said electroconductive member (107) being exposed on the other surface of said holding member (111); and a recording element substrate having a plurality of recording elements (603) more by at least one than the necessary number arranged thereon; one end of the electroconductive member (107) exposed on one surface of said electrical connecting member (125) being connected to said recording element (603).






    Search report