Method and apparatus for developing a latent, electrostatic imag

Details Method and apparatus for developing a latent, electrostatic imag Method and apparatus for developing a latent, electrostatic imag

1978-07-20

1979-07-31

Moses, R. L.

Photocopying

Including fiber optics

118653, 427 18, 427 20, 427 21, G03G 1500

Patent

active

041628420

ABSTRACT:
A development apparatus for dry toning a latent, electrostatic image on a dielectric surface. The developing apparatus includes a rotating, magnetic brush which picks up dry toner from a reservoir and magnetically carries it past a first region on the dielectric surface to allow it to electrostatically adhere thereto. Residual toner carried past the first region is picked up by an impeller that impels the toner toward a second region on the dielectric surface to simulate cascade toning. Finally, toner that centrifugally escapes the magnetic brush effuses outwardly and is guided toward a third region on the dielectric surface to form a toner cloud.

REFERENCES:
patent: 3542579 (1970-11-01), Gundlach
patent: 3880119 (1975-04-01), Fraser
patent: 3900255 (1975-08-01), Yamamoto
patent: 3918402 (1975-11-01), Ohta
patent: 3921578 (1975-11-01), Genthe et al.

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