To establish proper measures of a circulating document feeder against erroneous operations of the user and erroneous detection of the size of documents, by providing the feeder with a durable, simplified sheet re-feed member.
A circulating document feeder includes a sheet re-feed lever 274 adapted to slide on a rail 272 arranged below a document tray 60 in parallel with the document feed direction,. The lever 274 projects through a slot formed in the document tray 60 above the tray so as to move from its home position below a sheet discharge port toward a sheet feed port. When a discharge sensor senses a document on the document tray 60 and a feed-sheet empty sensor does not sense a feed sheet, the lever 274 is moved by a predetermined distance depending on the document size. When the empty sensor sensors feed sheets, on the other hand, the lever 274 is stopped are returned to the home position.
KONDO MASAO
TOKAWA KOJI
