| 摘要 |
An automatic document feeder for automatically feeding a document placed on a document tray includes a paper feed section which includes at least a paper feed roller and a pickup roller and is tilted up and down around a roller shaft of the paper feed roller; and a shutter section including a shutter which is provided on a side plate of the paper feed section, placed at a document restriction position at which a position of the leading edge of the document is restricted before the paper feed section picks up the document, tilted by being pushed by the document to be picked up when the paper feed section picks up the document, and automatically returns to the document restriction position by its own weight after the picked up document has passed under the shutter.
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