Electroded donor roll for a scavengeless developer unit

Details Electroded donor roll for a scavengeless developer unit Electroded donor roll for a scavengeless developer unit

1992-03-13

1992-12-15

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

29895, 118653, G03G 1508

Patent

active

051721708

ABSTRACT:
An apparatus in which a donor roll advances toner to an electrostatic latent image recorded on a photoconductive member. A plurality of electrical conductors are located in grooves in the donor roll. The electrical conductors are spaced from one another and adapted to be electrically biased in the development zone to detach toner from the donor roll so as to form a toner cloud in the development zone. In the development zone, toner is attracted from the toner cloud to the latent image. In this way, the latent image is developed with toner.

REFERENCES:
patent: 4868600 (1989-09-01), Hays et al.
patent: 4984019 (1991-01-01), Folkins
patent: 5010367 (1991-04-01), Hays

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