PHOTOGRAPHIC PAPER FEEDING CONDITION DETECTOR

摘要

PURPOSE:To detect the occurrence of paper jam, the presence or absence of photographic paper and the completion of the photographic paper setting with one detector by providing a rotator which rotates with the movement of the photographic paper and a rotation detecting means which detects the rotation of the rotator. CONSTITUTION:When there is no photographic paper 11, the photographic paper is not set or paper jam precludes the photographic paper 11 from being fed, a rotator 8 has no contact with the photographic paper 11 and no rotation. The non-rotation status of the rotator 8 is seized as an electric signal by a rotation detecting means 9 and formed into an abnormal signal in feeding the photographic paper to give corresponding information to an alarm circuit and a display circuit.