Reproduction system

Claim 1

A RADIATION-SENSITIVE SHEET WHICH COMPRISES AN INERT CARRIER SHEET CONTAINING UNIFORMLY BONDED OVER THE SURFACE THEREOF A CATALYST WHICH IS ACTIVATED INTO THE TRANSFER OF ELECTRONS TO AN ELECTRON ACCEPTOR BY AT LEAST ONE RADIATION WAVE LENGTH BELOW ONE MICRON SELECTED FROM AT LEAST ONE OF THE GROUP CONSISTING OF PHOTOCONDUCTORS, NONPHOTOCONDUCTIVE FLUOROESCENT MATERIALS, PHOOCHROMIC METAL COMPLEXES, AND THE NON-PHOTOCONDUCTIVE METAL OXIDES TITANIUM DIOXIDE, ANTIMONY TRIOXIDE AND ALUMINUM OXIDE, AND AN OXIDATION-REDUCTION COMPOSITION HAVING AN OXIDATION-REDUCTION POTENTIAL OF AT LEAST +0.1 VOLT, THE REACTION OF WHICH IS INITIALTED BY ELECTRON TRANFER FROM SAID CATALYST, COMPRISING AN OXIDIZING AGENT SELECTED FROM AT LEAST ONE OF THE GROUP CONSISTING OF THE SALTS OF SIVLER, MERCURY, LEAD, GOLD, MANGANESE, NICKEL, TIN, CHROMIUM, PLATINUM AND COPPER, THE TETRAZOLIUM SLATS, DIPHENOL CARBAZONE AND METHINE DYE, AND A REDUCING AGENT SELECTED FROM AT LEAST ONE OF THE GROUP CONSISTING OF THE ALKALI EARTH AND ALKALI METAL OXALATES, ALKALI EARTH AND ALKALI METAL FORMATES, HYDROXYL AMINES, HYDRAZINES, ASCORBIC ACID, AMINOPHENOLS, DIHYDRIC PHENOLS AND POLYVINYLPYRROLIDONE, SAID OXIDIZING AGENT AND SAID REDUCING AGENT BEING PRESENT IN SUBSTANTAILLY STOICHIOMETRIC EQUIVALENT AMOUNTS, AND THE WEIGHT RATIO OF THE OXIDATION-REDUCTION COMPOSITION TO CATALYST BEING BETWEEN ABOUT 10:1 AND ABOUT 1:10, AND SAID CATALYST, OXIDIZING AGENT AND REDUCING AGENT BEING PRESENT IN COMBINATION IN SEPARATE SOLID PHASES AND IN SUBSTANTIALLY DRY CONDITION ON SAID CARRIER SHEET.