| 摘要 |
A document feeder which has a feed roller for feeding a document picked up from a tray toward a reading position, a first pair of rollers which is located immediately before the reading position, a second pair of rollers which is located immediately after the reading position, and a document sensor. After the leading edge of the document transported by the feed roller comes to the first pair of rollers, the feed roller keeps rotating for a specified time, whereby, registration of the document is carried out. In response to a signal which is generated when the document sensor detects the trailing edge of the document, feeding of a next document is started.
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