Metering roll with fixed slider strips

Details Metering roll with fixed slider strips Metering roll with fixed slider strips

1979-07-09

1980-12-30

Beck, Shrive P.

Coating apparatus

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

With means to orient coating particles

101363, 101350, 118262, 118661, 355 10, 430117, B05C 108

Patent

active

042416949

ABSTRACT:
A metering roll, employed between the developing station and the transfer station of a photocopier which uses a liquid toner, controls the thickness of the liquid on the photosensitive drum surface when it is presented to the transfer station. Elements fixed between the drum and roll maintain the central metering portion in a substantially constant spaced apart relationship to the photosensitive drum surface and thereby tend to limit and control the thickness of developer on the drum surface at the transfer station. The elements have different surfaces in sliding, frictional contact with the drum and roll respectively. In one embodiment the elements are strips with opposite parallel surfaces, one in contact with the drum and the other in contact with the roll. In another, the ends of the strip are mounted on reels so that the strip may be moved to vary wear points on the strip if any appear.

REFERENCES:
patent: 2644424 (1953-07-01), Bixby
patent: 3245377 (1966-04-01), Gettel
patent: 3830199 (1974-08-01), Saito et al.
patent: 3907423 (1975-09-01), Hayashi et al.
patent: 3957016 (1976-05-01), Yamada
patent: 4023899 (1977-05-01), Hayashi et al.
patent: 4052959 (1977-10-01), Hayashi et al.
patent: 4135475 (1979-01-01), Bomers

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