| 摘要 |
PROBLEM TO BE SOLVED: To reuse a light shielding cover closing mechanism closing a light shielding cover arranged at a cartridge after the rolling-in of a roll film is finished. SOLUTION: By a cover member moving means 81, the light shielding cover moved to a close position is moved toward an open position. By a lock member moving means 80, a lock lever 50 is pressed and moved to a lock position and engaged with a cover driving member 47 moved to the open position so as to hold the light shielding cover at the open position. By an initial position set means for a cam member, the lever 50 is moved to the lock position and a detection gear 40 having a cam is rotated to an initial position decided every regulated number of photographing sheets based on a rolling-in position obtained when the roll film is rolled in the cartridge thereafter. Thus, the lever 50 is held at the lock position by the cam so that the light shielding cover closing mechanism is returned to an initial state.
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