Triboelectric filter and method of using it in an electrophotogr

Details Triboelectric filter and method of using it in an electrophotogr Triboelectric filter and method of using it in an electrophotogr

1975-03-03

1976-09-21

Smith, Ronald H.

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

55103, 55131, 134 6, 355 15, 427345, B05D 106, G03G 2100

Patent

active

039820432

ABSTRACT:
Airborne electrophotographic toner particles are filtered by a body of carrier beads of a material selected to develop a relatively high triboelectric charge upon contact by the toner particles. When the filtering capability of the body of carrier beads is exhausted, the carrier beads and the collected toner are simply mixed into the developer mix of a xerographic machine whereby the collected toner can be reused.

REFERENCES:
patent: 2844214 (1958-07-01), Hall et al.
patent: 2992700 (1961-07-01), Silverman et al.
patent: 3424615 (1969-01-01), Eichorn et al.
patent: 3654901 (1972-04-01), Donohue et al.
patent: 3680287 (1972-08-01), Wood et al.
patent: 3780391 (1973-12-01), Leenhouts
patent: 3816157 (1974-06-01), Donohue et al.
patent: 3850521 (1974-11-01), Saupe

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