| 摘要 |
PROBLEM TO BE SOLVED: To greatly improve remaining paper treating performance by improving the visible recognition of remaining paper. SOLUTION: A double faced unit 2 is provided with a horizontal carrier passage 14 having an upper face covered with a stack guide plate 18. A paper existence detecting member 30 is provided in the horizontal carrier passage 14 for turning depending on the existence of paper P. When one end 31a is located at an opening portion 18a of a stack guide plate 18 in linkage with the turning of the paper existence detecting member 30, information that the paper P remains is given to the horizontal carrier passage 14.
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