Dispersion supply apparatus for photoelectrophoretic migration imaging
AssigneeEastman Kodak Company
InventorClyde L. Fetterman
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Abstract
Migration imaging apparatus of the kind using a photoelectrophoretic dispersion and having an electrode moveable along an endless operative path past dispersion application and imaging zones features improved dispersion applicator structure comprising a flat-spray, atomizing nozzle adapted to form a uniform layer of dispersion on the electrode without imparting velocity perturbations to the moving electrode.
Claims9
In migration imaging apparatus of the kind using an imaging layer comprising a liquid dispersion of electrophotosensitive image particles and a carrier, said apparatus having an imaging zone, a dispersion application zone, means moveable between said application and imaging zones for transporting such an imaging layer from said application zone through said imaging zone and means for subjecting such a transported layer to migration image inducing electrical field and illumination at said imaging zone, an improved device for applying such a layer on said transporting means, said device comprising atomizing nozzle means, located at said application zone, for spraying a continuous, uniformly thick layer of such liquid dispersion onto said transporting means.
In migration imaging apparatus of the kind using an imaging layer comprising a liquid dispersion of electrophotosensitive image particles and a carrier, said apparatus having an imaging zone, an application zone, electrode means moveable along a continuous operative path passing said application zone and said imaging zone and means for subjecting dispersion transported on said electrode means to migration image inducing electrical field and illumination at said imaging zone, improved applicator means for applying a uniformly thick, continuous dispersion layer onto said electrode means, said applicator means comprising flat-spray, atomizing nozzle means, located at said application zone, for directing a fluidized spray pattern of such liquid dispersion onto said electrode means with the longitudinal dimension of said spray pattern oriented generally transverse to the direction of electrode means movement.
Dependencies are inferred from the claim text.