Device for inking an electrostatic charge image with toner parti

Details Device for inking an electrostatic charge image with toner parti Device for inking an electrostatic charge image with toner parti

1982-09-01

1985-07-09

Grimley, A. T.

Photocopying

Including fiber optics

355 3SH, 118647, 222630, 430103, G03G 1506, G03G 1508, G03G 1509, G03G 1500

Patent

active

045278849

ABSTRACT:
A device for inking an electrostatic charge image with toner particles in a xerographic unit is disposed adjacent to an information carrier on which the electrostatic charge image is carried so as to form a developing gap above the charge image. The device has a toner feed channel and a toner discharge channel which are surrounded by an excitation layer for electrostatic charging of the toner particles by triboelectricity. A plurality of multiphase electrodes are disposed adjacent to the device in the area of the feed and discharge channels, the electrodes being supplied with multiphase alternating voltage for generating a nonhomogeneous self-propagating electric field for delivery and withdrawal of the toner particles. A single phase alternating voltage is applied in the area of the developing gap for generating an electric field which presses the toner particles against the information carrier.

REFERENCES:
patent: 2942573 (1960-06-01), Crumrine
patent: 2992758 (1961-07-01), Hayford et al.
patent: 3094248 (1963-06-01), Huber
patent: 3257223 (1966-06-01), King
patent: 3696785 (1972-10-01), Andrus
patent: 3828670 (1974-08-01), Kennedy
"Elektrostatik und ihre Technische Anwendungen," S. Masuda, Zurich, 1973.
"Elektrodynamisches Verhalten der Aufgeladenen Aerosolteilchen in den Inhomogenen Wechsel-und Gleichfeldern," Zurich (1973), Masuda.

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