Development unit having an asymmetrically biased electrode wires

Details Development unit having an asymmetrically biased electrode wires Development unit having an asymmetrically biased electrode wires

1991-08-16

1993-04-27

Moses, R. L.

Photocopying

Contact printing

Light boxes

118647, 118654, 355246, 355247, G03G 1506

Patent

active

052066932

ABSTRACT:
The present invention is an apparatus that develops a latent image recorded on a surface with toner. An electrically biased electrode member in the development zone between the photoconductive member and the donor roll detaches toners from the donor roll so as to form a toner powder cloud in the development zone. The electrical bias applied on the electrode member is an asymmetrical wave. Toner from the toner powder cloud develops the latent image.

REFERENCES:
patent: 4102305 (1978-06-01), Schwarz
patent: 4565438 (1986-01-01), Folkins
patent: 4792831 (1988-12-01), Takeda et al.
patent: 4868600 (1989-09-01), Hays et al.
patent: 4887102 (1989-12-01), Yoshikawa et al.
patent: 4913348 (1990-04-01), Hays

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