Magnetic brush charging device

Details Magnetic brush charging device Magnetic brush charging device

1993-10-15

1994-10-18

Grimley, A. T.

Photocopying

Contact printing

Light boxes

361225, G03G 1502

Patent

active

053573234

ABSTRACT:
An image forming machine such as a copier or a printer for developing a latent image on a photoreceptor with toner. The image forming machine includes a sleeve for charging the photoreceptor; magnetic particles for forming a magnetic brush on a surface of the sleeve; a driver for driving the sleeve so that the magnetic brush is moved; and a power applying circuit for applying an alternating current between 20 and 500 .mu.A/cm on to a charging area between the sleeve and the photoreceptor; in which the sleeve is located in the vicinity of the photoreceptor so that the magnetic brush is in contact with the surface of the photoreceptor.

REFERENCES:
patent: 4174903 (1979-11-01), Snelling
European Search Report.

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