Magnetic toner recovery method using alternating magnetic field

Details Magnetic toner recovery method using alternating magnetic field Magnetic toner recovery method using alternating magnetic field

1977-02-14

1978-09-05

Smith, Ronald H.

Coating processes

Pretreatment, per se, or post-treatment, per se

118639, 209213, 346 741, 427 12, 427 18, 427 47, 427345, B05D 300

Patent

active

041121562

ABSTRACT:
Airborne magnetic toner is recovered from the vicinity of a magnetizable recording medium by magnetically attracting the toner with a magnetic field which does not alternate in magnetic polarity thereby magnetically polarizing the toner; and, subsequently passing the polarized magnetic toner through a magnetic field which alternates in magnetic polarity thereby decreasing the magnetic polarization of the magnetic toner. This procedure maintains the flow characteristics of the toner and avoids the clumping together of toner normally associated with magnetic recovery of magnetic toner.

REFERENCES:
patent: 3333572 (1967-08-01), Olden
patent: 3894513 (1975-07-01), Stanley et al.
Eastman Kodak Research Disclosure, Oct. 1974, p. 44; "Improved Magnetic Brush Cleaning System".

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