(19)
(11) EP 0 439 145 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
09.12.1992 Bulletin 1992/50

(43) Date of publication A2:
31.07.1991 Bulletin 1991/31

(21) Application number: 91100831.6

(22) Date of filing: 23.01.1991
(51) International Patent Classification (IPC)5: G03G 15/02
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 24.01.1990 JP 14095/90

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

(72) Inventors:
  • Adachi, Hiroyuki, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)
  • Hoshika, Norihisa, c/o Canon Kabushiki Kaisha
    Ohta-ku, 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) Charging member with a bridging electrode structure and charging device using same in a detachable process unit in an image forming apparatus


    (57) A charging member for charging a member (1) to be charged includes a blade member (2), a supporting member (4) which supports the blade member (2), and an electrode layer (3) which is provided on the blade member (2) and is connected to the supporting member (4). The electrode layer (3) is formed after connecting the blade member (2) to the supporting member. A charging device uses the charging member. A process unit including the charging device is detachable relative to an image forming apparatus.






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