Method and apparatus for extending material life in a bias trans

Details Method and apparatus for extending material life in a bias trans Method and apparatus for extending material life in a bias trans

1991-11-08

1995-05-30

Beatty, Robert B.

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355275, 361225, G03G 1514

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active

054206774

ABSTRACT:
A method and apparatus for extending the electrical life of a bias transfer roll is disclosed. The apparatus includes a biasing member comprising a bias roll member or other charging device for reversing current flow through the bias transfer roll. The apparatus of the present invention permits reversal of current flow through a bias transfer roll to replenish ions depleted therefrom during the transfer process.

REFERENCES:
patent: 3626260 (1971-12-01), Kimura et al.
patent: 3847478 (1974-11-01), Young
patent: 4062812 (1977-12-01), Safford et al.
patent: 4116894 (1978-09-01), Lentz et al.
patent: 4380384 (1983-04-01), Ueno et al.
patent: 4977430 (1990-12-01), Florack et al.
patent: 5006902 (1991-04-01), Araya

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