| 摘要 |
An automatic document feeder comprising a document deck table for loading a plurality of documents in a stack, a first feeder for subsequently feeding two documents loaded on the document deck table, a second feeder for transporting a fed document onto the platen, a stopper, provided with the one end of the platen, for stopping a transported document by interfering with the end of the document, a detector for detecting a fed document, a measuring device for measuring a distance between two documents subsequently fed, based on the signal output from the detector, and a controller for putting the second feeder out of action, based on the value measured by the measuring device. In a dual feeding mode, two documents are subsequently fed one by one, the second feeder continues its action after the leading edge of the first document has interfered and stopped with the stopper. The second document is transported for a distance between the two documents after the stop of the first document, the two documents are set onto the platen in series and in close contact with each other.
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