Developer liquid supplying device

Details Developer liquid supplying device Developer liquid supplying device

1976-05-07

1977-05-24

Jaudon, Henry S.

Coating apparatus

Control means responsive to a randomly occurring sensed...

427 15, 355 10, 118DIG23, G03G 1506

Patent

active

040248380

ABSTRACT:
A resilient, patterned liquid developer applicator having raised and depressed areas for applying liquid developer to latent electrostatic images, is doctored by contacting it first with a squeegee roller to meter the depressed areas and subsequently with a relatively rigid raised area cleaning blade. The applicator has a resilient surface with a hardness of more than 60 Shore A and is provided with a plural number of finely divided discrete depressions and raised portions, and the squeegee doctor roller has a non-absorbing surface which has a hardness generally greater than the hardness of the surface of the applicator so that developer is squeezed from the depressions when the raised areas are deformed by the action of the squeegee roller.

REFERENCES:
patent: 3667428 (1972-06-01), Smith
patent: 3830199 (1974-08-01), Saito et al.
patent: 3974554 (1976-08-01), Fantuzzo
patent: 3978817 (1976-09-01), Hauser et al.
patent: 3980404 (1976-09-01), Townsend

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