(19)
(11) EP 0 602 016 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
10.05.1995 Bulletin 1995/19

(43) Date of publication A2:
15.06.1994 Bulletin 1994/24

(21) Application number: 94103206.2

(22) Date of filing: 09.05.1990
(51) International Patent Classification (IPC)5: G03G 15/00, G03G 15/01
(84) Designated Contracting States:
DE FR GB

(30) Priority: 09.05.1989 JP 117124/89
29.05.1989 JP 135334/89
29.07.1989 JP 197657/89

(62) Application number of the earlier application in accordance with Art. 76 EPC:
90304984.9 / 0397465

(71) Applicant: KONICA CORPORATION
Tokyo 160 (JP)

(72) Inventors:
  • Matsuo, Shunji
    Hachioji-shi, Tokyo (JP)
  • Morita, Shizuo
    Hachioji-shi, Tokyo (JP)
  • Haneda, Satoshi
    Hachioji-shi, Tokyo (JP)
  • Fukuchi, Masakazu
    Hachioji-shi, Tokyo (JP)
  • Naganuma, Seiko
    Hachioji-shi, Tokyo (JP)
  • Itaya, Masahiko
    Hachioji-shi, Tokyo (JP)
  • Hiraike, Fumiaki
    Hachioji-shi, Tokyo (JP)

(74) Representative: Senior, Alan Murray 
J.A. KEMP & CO., 14 South Square, Gray's Inn
London WC1R 5LX
London WC1R 5LX (GB)


(56) References cited: : 
   
     
    Remarks:
    This application was filed on 03 - 03 - 1994 as a divisional application to the application mentioned under INID code 60.
     


    (54) Color image forming apparatus


    (57) A color image forming apparatus for forming a color image comprising; an image retainer for carrying the color image, a charger for charging a surface of the image retainer, a latent image former for forming a latent image on the charged surface of the image retainer, a multicolor developer for developing the latent image, a black developer for developing the latent image, a transfer sheet conveyer for conveying a transfer sheet and transferring the developed latent image onto the transfer sheet, and a cleaner for cleaning a residual developer on the surface of the image retainer, in which the image retainer, ether one of the black developer or the multicolor developer, and the cleaning means are formed as a detachable processing cartridge, and the rest of the black developer or the multicolor developer is detachable to the body of the color image forming apparatus.






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