..BE..DE....FRGB..IT..............................R0660175EUROPEAN PATENT APPLICATIONA319951206EP94119119.919941205enenen16842219931222US19951206199549199506281995266 6G 03C 5/31 A 6G 03C 5/30 BdeSteuerung der Nachfillung und Regenerierung während der photographischen EntwicklungenControl of replanishment during photographic developmentfrContrôle du remplissage pendant le développement photographiqueE.I. DU PONT DE NEMOURS AND COMPANY00200580IM-0848-Aei du pontDU PONT DE NEMOURS AND COMPANY, E.I.PONT DE NEMOURS AND COMPANY, E.I. DUNEMOURS AND COMPANY, E.I. DU PONT DE1007 Market StreetWilmington Delaware 19898USWuelfing, Peter3 Turnberry CourtArden, North Carolina 28704USvon Kreisler, Alek, Dipl.-Chem.et al00012434Patentanwälte von Kreisler-Selting-Werner Postfach 10 22 4150462 KölnDEBEDEFRGBIT19951206199549

An improved developer and associated replenisher is provided which can be analyzed in a single non-invasive measurement. One advantage of the improved developer is the ability to indirectly measure the activity of the developer and replenisher and to determine if the solutions are properly prepared. These and other advantages are provided in a system for converting an image-wise exposed silver halide photographic film to a viewable image comprising: a development means wherein said image-wise exposed silver halide is reduced to elemental silver with subsequent depletion of said development means; a fixing means wherein unexposed silver halide is removed from said photographic film; a replenishing means for said development means wherein said replenishing means comprises at least two titratably distinct components.