Xerographic duplicator

Claim 1

IN AN ELECTROPHOTOGRAPHIC DUPLICATING MACHINE, IN COMBINATION, A FIRST MOVABLE CARRIER FOR SUPPORTING A TEXT SHEET HAVING A PLURALITY OF TEXT SECTIONS A SECOND MOVABLE CARRIER CONNECTED TO SAID FIRST CARRIER FOR SYNCHRONOUS MOVEMENT; AN ELECTROPHOTOGRAPHIC PLATE WITH AN ELECTROSTATIC CHANGE MOUNTED ON SAID SECOND CARRIER FOR MOVEMENT THEREWITH; ELECTRIC CHARGING MEANS FOR CHARGING SAID ELECTROPHOTOGRAPHIC PLATE AND CONFRONTING A SECTION OF SAID ELECTROPHOTOGRAPHIC PLATE SO THAT DURING MOVEMENT OF SAID SECOND CARRIER AND ELECTROPHOTOGRAPHIC PLATE SUCCESSIVE SECTIONS OF SAID ELECTROPHOTOGRAPHIC PLATE ARE LOCATED OPPOSITE SAID CHARGING MEANS; A PLURALITY OF MANUALLY OPERABLE SELECTOR MEANS RESPECTIVELY CORRELATED WITH SAID TEXT SECTIONS AND OPERATIVELY CONNECTED TO SAID CHARGING MEANS FOR ENERGIZING AND ACTUATING SAID CHARGING MEANS ONLY WHEN A SECTION OF SAID ELECTROPHOTOGRAPHIC PLATE CORRELATED TO A TEXT SECTION SELECTED BY SAID SELECTOR MEANS IS LOCATED OPPOSITE SAID CHARGING MEANS WHEREBY THE RESPECTIVE SECTION OR SECTIONS OF SAID ELECTROPHOTOGRAPHIC PLATE ARE CHARGED; OPTICAL MEANS FOR SUCCESSIVELY PROJECTING DURING MOVEMENT OF SAID FIRST CARRIER IMAGES OF SUCCESSIVE TEXT SECTIONS ONTO A SECTION OF SAID ELECTROPHOTOGRAPHIC PLATE LEADING THE CHARGED SECTIONS IN DIRECTION OF MOVEMENT OF SAID CARRIER SO THAT THE CHARGED SECTIONS OF SAID ELECTROPHOTOGRAPHIC PLATE ARE PARTLY DISCHARGED CORRESPONDING TO SAID IMAGES; TREATING MEANS ADJACENT SAID CARRIER FOR TREATING SAID ELECTROPHOTOGRAPHIC PLATE SO AS TO DEVELOP THE IMAGES THEREON; COUNTERPRESSURE ROLLER MEANS; OPERATING MEANS FOR ACTUATING SAID COUNTERPRESSURE ROLLER MEANS TO MOVE TO AND FROM A PRINTING POSITION IN CLOSE PROXIMITY WITH SAID SECOND CARRIER TO DEFINE A PRINTING LINE WITH SAID ELECTROPHOTOGRAPHIC PLATE; MEANS FOR SUCCESSIVELY FEEDING COPY SHEETS TO SAID PRINTING LINE, FED COPY SHEETS BEING GRIPPED AND TRANSPORTED BY SAID COUNTERPRESSURE ROLLER AND SAID SECOND CARRIER ONLY IN SAID PRINTING POSITION; SENSING MEANS ADJACENT SAID SECOND CARRIER FOR SENSING THE ELECTROSTATIC CHARGE OF CHARGED SECTIONS OF SAID ELECTROPHOTOGRAPHIC PLATE; AND MEANS CONNECTING SAID SENSING MEANS WITH SAID OPERATING MEANS FOR ACTUATING THE SAME WHEN A CHARGED SECTION OF SAID ELECTROPHOTOGRAPHIC PLATE PASSES THROUGH THE PRINTING LINE WHEREBY IMPRINTS OF SAID DEVELOPED IMAGES ON SAID ELECTROPHOTOGRAPHIC PLATE ARE PRODUCED ADJACENT TO EACH OTHER ON EACH COPY SHEET.