Sheet feeding or delivering – Delivering to stack and feeding therefrom – With sheet sensor for selective location
Patent
1989-09-28
1990-12-25
Moses, R. L.
Sheet feeding or delivering
Delivering to stack and feeding therefrom
With sheet sensor for selective location
271186, 271303, 355318, 355320, 355321, B65H 522, B65H 2900, B65H 3910, G03G 2100
Patent
active
049797271
ABSTRACT:
An automatic document feeder for an image forming apparatus comprises first and second document trays each for stacking thereon one or more documents. A document feeding unit is provided for feeding the documents one by one from the first document tray in order from the uppermost one of the documents, while reversing the same upside down. A reversing convey unit is provided for receiving the document fed from the optical exposure portion and for feeding the same in a first direction toward the second document tray while reversing the same upside down, as well as a second direction opposite to the first direction. A first change-over member is provided for selectively connecting the optical exposure portion to the document feeding unit or the reversing convey unit. A second change-over member is movable between a first position for leading the document fed from the optical exposure portion toward the reversing convey unit, and a second position for leading the document toward the second document tray when the document is fed by the reversing convey unit in the second direction. A third change-over member is provided for selectively leading the document fed by the reversing convey unit in the first direction to the second document tray or the optical exposure portion.
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Koike Tadao
Tsunoda Kohichi
Moses R. L.
Ramirez Nestor R.
Ricoh & Company, Ltd.
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