Development system

Details Development system Development system

1985-05-10

1986-12-30

Pianalto, Bernard D.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

G03G 1506

Patent

active

046320547

ABSTRACT:
An apparatus which develops a latent image by transporting marking particles into contact therewith at least two successive times. An operator adjustable voltage source is coupled to the marking particle transport to electrically bias the transport to at least either a first electrical potential optimizing development of solid areas with the marking particles during the first contact time or to a second electrical potential suppressing development of solid areas. The transporting means is electrically biased to an electrical potential substantially optimizing development of lines with the marking particles during the second contact time.

REFERENCES:
patent: 4098228 (1978-07-01), Ruckdeschel et al.
patent: 4267797 (1981-05-01), Huggins
patent: 4292921 (1981-10-01), Kroll et al.
patent: 4297972 (1981-11-01), Hwa
Research Disclosure Journal, Apr. 1978, p. 4, No. 16823, disclosed by Paxton.

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