Remotely controlled printing apparatus

Claim 1

A DATA TRANSMISSION SYSTEM COMPRISING (A) A CYCLICALLY OPERABLE DATA RECEIVER HAVING A PREDETERMINED SUBSTANTIALLY CONSTANT CYCLE TIME, (B) A CYCLICALLY OPERABLE DATA TRANSMITTER HAVING A CYCLE TIME SUBSTANTIALLY EQUAL TO THE CYCLE TIME OF SAID DATA RECEIVER, (C) A COMMUNICATION LINK CONNECTING SAID DATA RECEIVER AND SAID DATA TRANSMITTER, (D) MEANS IN SAID DATA RECEIVER FOR GENERATING A SYNCHRONIZING SIGNAL AT A FIXED PREDETERMINED TIME IN EVERY CYCLE OF OPERATIONOF SAID RECEIVER, AND FOR IMPRESSING SAID SIGNAL ON SAID COMMUNICATION LINK, (E) MEANS IN SID DATA TRANSMITTER, OPERATIVE RESPONSIVE TO SAID SYNCHRONIZING SIGNAL, FOR REGISTERING A MANIFESTATION OF SAID SYNCHRONIZING SIGNAL, AND FOR CIRCULATING SAID MANIFESTATION AT THE CYCLE RATE OF SAID TRANSMITTER, (F) A PLURALITY OF INDIVIDUALLY SETTABLE DATA CONTROLLING MEANS IN SAID TRANSMITTER, EACH OPERABLE, WHEN ACTIVELY SET, TO REACT TO SAID CIRCULATING MANIFESTATION AT PREDETERMINED TIME INTERVALS FOLLOWING THE REGISTRATION OF SAID MANIFESTATION TO PRODUCE A RETURN SIGNAL IN SAID COMMUNICATION LINK, (G) AND MEANS IN SAID DATA RECEIVER FOR PRODUCING A DIFFERENT DATUM MANIFESTATION DURING EACH ONE OF A PLURALITY OF DIFFERENT TIME INTERVALS FOLLOWING THE GENERATION IN SAID RECEIVER OF SAID SYNCHRONIZING SIGNAL, AND OPERATIVE RESPONSIVE TO EACH OF SID RETURN SIGNALS TO REGISTER A DIFFERENT DATUM, EACH OF THE SAID PREDETERMINED TIME INTERVALS IN SAID TRANSMITTER BEING CORRESPONDINGLY AND RESPECTIVELY EQUAL TO THE PREDETERMINED TIME INTERVALS IN SAID RECEIVER.