Electrostatic toner conditioning and controlling means II

Details Electrostatic toner conditioning and controlling means II Electrostatic toner conditioning and controlling means II

1998-04-01

1998-12-15

Moses, Richard

Electrophotography

Image formation

Development

118625, 347158, 361233, G03G 1508

Patent

active

058505873

ABSTRACT:
A system for delivering electrostatic toner to an image receiving member includes a traveling electrostatic wave toner conveyor with a delivery segment adjacent to the image receiving member. The delivery segment includes parallel traveling wave conveyor electrodes and nudging electrodes. The conveyor electrodes are connected to a source of DC-biased multiphase electric power to establish a traveling electrostatic wave in the delivery segment to move toner in a synchronous surfing mode. The nudging electrodes are connected to a source of repulsive DC voltage of the same polarity as the toner to slow and deflect toner toward the image receiving member. The delivery segment further includes overlaid barrier electrodes to maintain uniform delivery of toner to all apertures in an electronically addressable printhead.

REFERENCES:
patent: 3872361 (1975-03-01), Masuda
patent: 4568955 (1986-02-01), Hosoya et al.
patent: 4647179 (1987-03-01), Schmidlin
patent: 4743926 (1988-05-01), Schmidlin et al.

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