Electrostatic and magnetic transfer enhancing apparatus for cond

Details Electrostatic and magnetic transfer enhancing apparatus for cond Electrostatic and magnetic transfer enhancing apparatus for cond

1979-11-02

1981-06-23

Pianalto, Bernard D.

Coating apparatus

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

With electromagnetic and/or electrostatic removal of...

118623, 355 3TR, G03G 1508

Patent

active

042743613

ABSTRACT:
Electrostatic and magnetic transfer apparatus for conducting and magnetically attracting electronically conductive toner from the surface of a dielectric drum to a secondary substrate such as plain paper wherein a fixed permanent magnet disposed within a hollow cylindrical roller located at the image transfer point within a portion of a continuous loop of semi-conductive material supplies additional attractive force between the toner and the substrate exclusively at the image transfer point which in combination with the electrostatic transfer force applied to the imaged dielectric surface of the drum by means of a voltage potential applied to the hollow cylindrical roller, produces a dense, well defined pattern of intelligence replicating what was originally applied to the dielectric surface.

REFERENCES:
patent: T969009 (1978-04-01), Lahut et al.
patent: 3992557 (1976-11-01), Kubo et al.
patent: 4114536 (1978-09-01), Kaneko et al.
patent: 4171900 (1979-10-01), Brugger et al.

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