Abstract: A motor driven camera back for instant film carrying machine readable indicia representative of parameters of the film. The back includes a pair of processing rollers driven by a motor between an initial spaced relationship and an operative pressure nip relationship and also in rotation in the operating relationship to process and discharge an exposed film unit from the back. A sensor and motor control circuitry is provided so that upon initial withdrawal of film unit portions, information supplied to the circuitry by the film carried indicia will operate the motor only if the processing parameters of the film unit are suitable to those of the camera back.

Abstract: Photographic apparatus for use with a fully automatic camera adapted to sequentially expose and process a film supply in the form of a disposable cassette. Upon insertion of the cassette within a cassette receiving chamber formed in the base of the camera, a loading door assembly is closed to secure the cassette within the chamber, and as a function of the closure of the noted door assembly, a latch and switch function occur substantially simultaneously to lock the loading door and energize a photographic system electronic network which includes a sequence control function and various other subsystems responsive to sequence commands. The switch and latch are structured to provide an interlock function so that the system is inoperative if the loading door assembly is not in a closed position. A manually operative latch release button is provided to disengage the loading door from its locked position.