Method of processing photographic silver halide materials
AssigneeEastman Kodak Company
InventorJeffrey K. Green
Life of this patent
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Abstract
Black-and-white silver halide photographic materials are processed with the use of a processor which requires no silver recovery means, no water supply and no drain. The photographic material is transported through a series of processing tanks including a developer tank, one or more fixer tanks, and one or more wash or stabilizer tanks. Replenishment of the fixing solution is controlled so that the rate of replenishment of the fixer tank is a function of the level of one or more chemicals in the last tank through which the material is transported.
Claims8
A method of controlling the replenishment of fixer solutions in a black-and-white photographic silver halide material processing machine without any silver recovery means and requiring no water supply or drain, and which transports the material to be processed though a number of processing tanks including a developer tank, one or more fixer tanks and one or more wash or stabilizer tanks wherein the rate of replenishment of the fixer tank is a function of the level of one or more chemicals in the last tank though which the material is transported, said chemical(s) being those which affect the stability of the processed photographic material or those whose concentrations are related thereto.
Dependencies are inferred from the claim text.