| 摘要 |
PURPOSE:To emit an alram only when there is possibility of leaving behind of an original by detecting the going out of the operator to the outside of the operation range in the state of detecting the presence of the original. CONSTITUTION:When the copying operation ends, the signal of a copying operation end detector 10 changes from 0 to 1, and inputs to AND circuits 11, 12. When the opertor leaves from the copying machine without removing the original and copying paper in this state, the output of an operator detector 9 changes from 0 to 1, and the output of a flip-flop circuit 14 is changed from 0 to 1 by the AND circuit 11. when the operator returns to the machine and tries to leave there by removing the copying paper but without removing the original, the output of the paper ejection detector changes from 0 to 1, and inputs to the AND circuit 12, and therefore an alarm is emitted from an alarm device 15. |
