| 摘要 |
PROBLEM TO BE SOLVED: To provide a paper stacker which can select and accumulate numerous sorts of papers in a simple structure. SOLUTION: By using this paper stacker B, numerous sorts of papers P with different sizes which are exhausted from an apparatus A are accumulated in each size respectively. And plural trays 3 and 5 on which papers are accumulated are set in the up and down direction by placing an interval, and a cutting 4 to drop the papers smaller than the papers accumulated by the upper side tray is provided to the tray 3 positioning at the upper side.
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