Magnetic brush developing device for developing electrostatic la

Details Magnetic brush developing device for developing electrostatic la Magnetic brush developing device for developing electrostatic la

1977-12-22

1979-12-11

Stein, Mervin

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

430122, G03G 1309

Patent

active

041777573

ABSTRACT:
In a device for developing electrostatic images with developer mix including magnetic carrier particles and triboelectrically charged toner particles which comprises a container for the developer mix, magnetic field producing means and an applicator enclosing the magnetic field producing means, a magnetic brush forming means is provided in the container for applying toner particles substantially uniformly to a surface to be developed, and a toner powder-cloud forming means is provided in spaced apart relationship with the magnetic brush forming means for applying toner particles to the same surface by the use of the edge effect of the toner powder.

REFERENCES:
patent: 3575139 (1971-04-01), Nuzum
patent: 3641980 (1972-02-01), Bickmore
patent: 3939801 (1976-02-01), Tanaka et al.
patent: 3952701 (1976-04-01), Yamashita et al.
patent: 4030447 (1977-06-01), Takahashi et al.
patent: 4048957 (1977-09-01), Tagawa
patent: 4063533 (1977-12-01), White
patent: 4075977 (1978-02-01), Williams

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