RECIRCULATING DOCUMENT FEEDER

摘要

A document to be copied is inserted into a recirculating document feeder of a moving document copier at an entry station (21) and is edge aligned against a reference surface (55). The feeder has a loop-shaped document path to recirculate a document once for each requested copy after the first. A turn-around guide (38) is pivoted into or out of the document path to direct the document into or out of the recirculating path. The reference surface (55) is interrupted in the vicinity of the guide. The guide is so disposed as to skew the leading edge of the document so that it is displaced slightly from the reference surface (55) to avoid document jams. The document is subsequently re-aligned against the reference surface (55) for rescanning to make another copy. A copy-request counter operates to pivot the guide to the document-intercept position so long as more copies are needed. When all requested copies have been imaged, the document is allowed to proceed to an exit tray (40).