| 摘要 |
An automatic document feeder, for conveying plural documents to an image reading section of a scanner includes; a first conveyer for separately conveying each of the plural documents from a document stack section to the scanner for reading an image on each of the plural documents at the scanner; a second conveyer for conveying the documents from the scanner to document reversing rollers, the document reversing rollers turning over the documents; a third conveyer for conveying the documents from the document reversing rollers to the scanner; and a document discharger for discharging the documents from the scanner to a document stack section of the apparatus. In the operation of the document feeder, while a first document is conveyed and turned over by one of the second conveyer, the document reversing rollers, and the third conveyer after a reading operation of the scanner to read an image on a first surface of the first document, a second document is started to be conveyed by the first conveyer; and when the first document is conveyed to the scanner so that an image on a second surface of the first document is read by the scanner, the second document is conveyed to a waiting position.
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