Cathode ray tube printer

Claim 1

IN A CYCLICALLY OPERABLE CATHODE RAY TUBE PRINTER SYSTEM HAVING CONTROL CIRCUITRY FOR TRANSFORMING DIGITAL INPUT INFORMATION INTO A CHARACTER DISPLAY ON THE FACE OF THE TUBE, THE COMBINATION OF, A TAPE READER OPERABLE IN EITHER A FORWARD DIRECTION OR IN A REVERSE DIRECTION TO FEED AND READ TAPE RECORDS BEARING SAID DIGITAL INPUT INFORMATION, A CYCLICALLY OPERABLE RECORDING CAMERA FOR RECORDING THE DISPLAYED INFORMATION ONTO FILM, SAID CAMERA INCLUDING MEANS FOR ADVANCING A FRAME OF FILM AFTER A PLURALITY OF DISPLAYS HAVE BEEN RECORDED, MEANS FOR PUTTING SAID TAPE READER INTO FORWARD OPERATION TO EFFECT THE RECORDING OF A PLURALITY OF TAPE RECORDS ONTO A FRAME OF FILM, ERROR DETECTION MEANS OPERABLE DURING FORWARD FEEDING OF SAID TAPE TO SAMPLE THE DIGITAL INFORMATION BEING PRINTED, MEANS RESPONSIVE TO SAID ERROR DETECTION MEANS UPON DETECTION OF AN ERROR TO DISABLE SAID PRINTER CONTROL CIRCUITRY AND STOP SAID TAPE READER, SELECTIVELY OPERABLE MEANS FOR EFFECTING REVERSE OPERATION OF SAID TAPE READER TO FEED TAPE BACKWARD, AN END-OF-RECORD COUNTER, TRIGGER MEANS CONTROLLED BY SAID TAPE READER FOR ADVANCING SAID COUNTER ONCE FOR EACH TAPE RECORD BEING READ IN THE FORWARD DIRECTION, MEANS RESPONSIVE TO SAID SELECTIVELY OPERABLE MEANS FOR CAUSING SAID COUNTER TO COMPLEMENT