| 摘要 |
A control unit for a photographic film printer for printing motion picture film onto raw stock from a master preprint film. The operation of various functions of the printer such as color changes, fades, and the like, are controlled in accordance with a control tape bearing information for the control of the various components. Various cue signals indicating where the desired controls are to be effective during the printing process are provided by a notch or RF patch system, a separate frame counting system utilizing a separate film address information tape, or an integral frame counting cuing system wherein the film address information is provided on the same control tape with the control information. Frame count cuing is achieved by counting frame numbers of the preprint film from a predetermined reference to thereby assign a position address to each film frame whereby the coincidents between the film address of the master frame and the frame address provided by the tape provides a command signal to release control data to the various printer controls. Logic means is provided to achieve printing and fading capabilities in both forward and reverse directions.
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