Biasing scheme for improving latitudes in the tri-level xerograp

Details Biasing scheme for improving latitudes in the tri-level xerograp Biasing scheme for improving latitudes in the tri-level xerograp

1989-11-22

1992-01-14

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

To produce multiple image on medium or plural radiant energy...

435 42, 435 45, 355265, 355266, 355328, G03G 1306, G03G 1308, G03G 1301

Patent

active

050809881

ABSTRACT:
The operating latitude of the tri-level xerographic process is improved by replacing the standard DC bias that is applied to one or both of the developer housings in conventional tri-level imaging with a chopped DC (CDC) developer bias. Chopped DC biasing is the alternate application of two discrete bias voltages to a developer stucture in a periodic fashion at a given frequency, with the period of each cycle divided up between the two bias levels at a duty cycle of from 5%-10% or 90%-95% depending upon which of the two developer structures is being biased. In the case of the DAD developer structure the duty cycle of higher of the two biases is 5%-10% and in case of a CAD developer structure the duty cycle of higher of the two biases is 90%-95%.

REFERENCES:
patent: 4078929 (1978-03-01), Gundlack
patent: 4632054 (1986-12-01), Whittaker et al.
patent: 4761668 (1988-08-01), Parker et al.
patent: 4761672 (1988-08-01), Parker et al.
patent: 4771314 (1988-09-01), Parker et al.
patent: 4811046 (1989-03-01), May
patent: 4833504 (1989-05-01), Parker et al.
patent: 4847655 (1989-07-01), Parker et al.
patent: 4868611 (1989-09-01), Germain
patent: 4998139 (1991-03-01), May et al.

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