| 摘要 |
An automatic document feeder for duplex scanning includes a scanning module, a pickup roller assembly, a first discharging roller assembly, a second discharging roller assembly, a first path, a second path, a third path, a sheet feeding tray, a first discharging tray and a second discharging tray. The first discharging tray is used as a reverse region. Since only the scanning module inside the automatic document feeder is used for scanning the document without the participation of the flatbed image scanning portion, the operative space for accommodating the scanning module in the flatbed image scanning portion is not required. As a result, the length and the overall volume thereof are reduced.
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