| 摘要 |
A multi-stage, serpentine-shaped buffer has an entry area (R1, R2) for receiving documents, a first level (G1, G2, G3) comprising a first plurality of document stages, a first turn-around (R3) for substantially reversing the direction of document travel following said first plurality of stages, a second level (G4, G5) vertically adjacent to said first level, said second level comprising a second plurality of document stages, a second turn-around (R4) for substantially reversing the direction of document travel, and a third level (G6, G7, G8) vertically adjacent to said second level, said third level comprising a third plurality of document stages.
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