(19)
(11) EP 0 106 465 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.11.1985 Bulletin 1985/46

(43) Date of publication A2:
25.04.1984 Bulletin 1984/17

(21) Application number: 83304975

(22) Date of filing: 30.08.1983
(84) Designated Contracting States:
DE FR GB IT NL

(30) Priority: 31.08.1982 JP 14988882
22.10.1982 JP 18473082

(71) Applicant: MITA INDUSTRIAL CO. LTD.
 ()

(72) Inventors:
  • Honda, Nobuyasu
     ()
  • Yamakawa, Toshiro
     ()
  • Ikeda, Toshimitsu
     ()

   


(54) Method for developing electrostatic latent images


(57) @ Disclosed is a method for developing electrostatic latent images, which comprises frictionally contacting the surface of a substrate (5) having an electrostatic latent image formed thereon with a magnetic brush of a developer formed on a developer-delivering sleeve (2) having a magnet (1) disposed therein, wherein a magnetic brush is formed on the sleeve with an earing promoting component comprising sintered ferrite particles (4) having a particle size of 20 to 100 microns and a developer component (3) comprising particles of a dispersion of a magnetic powder in a binder medium having a particle size of 5 to 50 microns.






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