(19)
(11) EP 0 461 596 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
09.02.1994 Bulletin 1994/06

(43) Date of publication A2:
18.12.1991 Bulletin 1991/51

(21) Application number: 91109514.9

(22) Date of filing: 10.06.1991
(51) International Patent Classification (IPC)5G03G 15/20
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 11.06.1990 JP 153603/90
11.06.1990 JP 153604/90
11.06.1990 JP 153606/90
11.06.1990 JP 153609/90

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

(72) Inventors:
  • Setoriyama, Takeshi, c/o CANON KABUSHIKI KAISHA
    Ohta-ku, Tokyo (JP)
  • Kuroda, Akira, 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) Heating apparatus using endless film


    (57) An image heating apparatus includes a heater; a film movable together with a recording material; a driving rotatable member cooperative with the film to form a nip therebetween, an image on a recording material being passed through the nip and is heated by heat from the heater though the film; wherein the driving member has a circumferential length which increases toward longitudinal ends thereof.







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