| 摘要 |
PURPOSE:To eliminate the need for large driving force for feeding a recording sheet and to prevent the breaking, etc., of the recording sheet, by feeding the recording sheet when the stock amounts of recording sheets attains to a specific value and turning off a feeding means when the recording paper is fed by a specific length. CONSTITUTION:When the amount of a film in a stock chamber 15 decreases to a specific value, a measuring instrument 19 outputs a detection signal d' and a timer 51 operates to output a timer signal e' with a level H. A driving circuit 43 operates in response to the signal e' and a capstan roller 12 rotates to perform the blank feed to the stock chamber 15. When the blank feeding is performed by the specific length, the rotation stops. The signal e' is counted by a counter 44. The total amount of the blank-fed film becomes a little bit more than the shortest length of the film feed path from the roll 12 to a take-up reel 35, the counted value of the counter 44 attains to a specific value and FF circuit 41 and the counter 44 are reset; a discharge roll driving circuit 42 and a circuit 43 are turned off on the resetting of the circuit 41, and consequently the rotation of a discharge roll 18 is stopped and the feed roll, etc., of a development part B are stopped. |
