Magnetic toner apparatus

Details Magnetic toner apparatus Magnetic toner apparatus

1978-08-04

1981-10-20

Schilling, Richard L.

Coating apparatus

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

With electromagnetic and/or electrostatic removal of...

101DIG13, 3461351, 118623, 118304, 118308, G03G 1509

Patent

active

042954428

ABSTRACT:
Magnetic apparatus for dispensing toner of an electrophoretic printer having a hopper fed magnetic brush in conjunction with an active or passive magnetic backing plate is disclosed for transferring a uniform layer of toner to a transfer surface or belt for high speed printing purposes. The magnetic apparatus includes a magnetic roller having an inner magnetic surface and an outer cylindrical surface disposed in magnetic relationship to the toner and opposite one side of the transfer surface. The apparatus further includes a magnetic backing plate disposed opposite the other side of the transfer surface and juxtaposed to said magnetic roller for transferring the toner to the transfer surface.

REFERENCES:
patent: 2930351 (1960-03-01), Giaimo
patent: 3040704 (1962-06-01), Bliss
patent: 3124527 (1964-03-01), Watanabe et al.
patent: 3233587 (1966-02-01), Morton
patent: 3550153 (1970-12-01), Haeberle et al.
patent: 3929098 (1975-12-01), Liebman
patent: 4122456 (1978-10-01), Berkowitz et al.

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