Magnetic brush development method

Details Magnetic brush development method Magnetic brush development method

1984-01-27

1985-09-10

Martin, Roland E.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

4301066, 118658, G03G 1309, G03G 1509

Patent

active

045406456

ABSTRACT:
Disclosed is a magnetic brush development method comprising supplying a two-component type developer comprising a mixture of magnetic carrier particles with toner particles chargeable by friction with the magnetic carrier particles onto a developing sleeve consisting of a non-magnetic sleeve having a magnet installed therein to form a magnetic brush of the developer, and bringing the magnetic brush in sliding contact with the surface of a photosensitive material having an electrostatic latent image formed thereon in the state where a bias voltage is applied between the photosensitive material and the sleeve, whereby a toner image corresponding to the electrostatic latent image is formed, wherein the two-component type developer comprises a ferrite carrier and electroscopic toner particles at a weight ratio of from 4/1 to 20/1.

REFERENCES:
patent: 4086873 (1978-05-01), Morita et al.
patent: 4254202 (1981-03-01), Matsumoto et al.
patent: 4286543 (1981-09-01), Ohnuma et al.
patent: 4324199 (1982-04-01), Morikawa
patent: 4401740 (1983-08-01), Kawabata et al.
patent: 4444864 (1984-04-01), Takahashi

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