| 摘要 |
An auto document feeder includes a housing unit, spatially interconnected first and second paths, an inverting path in spatial communication with the first path, a bypass path spatially intercommunicating the second path and the inverting path, a feeding roller unit for feeding documents onto the first path, first and second transfer roller units disposed respectively on the first and second paths, an ejecting roller unit aligned with the second path and the inverting path, and a switching gate disposed between the ejecting roller unit and the second transfer roller unit and pivotable to extend onto the second path or the bypass path so as to guide movement of the documents.
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