International Business Machines Corporation

Francis J Schell

Gerald W Baumann

Kate Goes In Center

Joseph L Gambrell

George F Hayes

Allen G Schulte

A copying system including a pivotal document feeder disposed above the original document platen and a pivotal plate disposed along an edge of the platen. The pivotal plate functions as a reference edge to manually align documents on the platen. A control device is provided to inhibit operation of the document feeder when the plate is on the document platen or when a paper jam occurs. The device includes a nonreflective patch disposed on one surface of the plate. A reflective patch is disposed within the paper path. A photosensitive detecting assembly is disposed in spaced alignment with the paper path. When the plate is on the document platen, the photosensitive detecting assembly coacts with the reflective patch to generate a signal which inhibits operation of the document feeder. The photosensitive detector assembly coacts with the nonreflective patch to enable operation of the document feeder and to function as a paper jam detector.

Pivoting reference edge

A movable self-contained deflector unit for directing sheets into the paper bin of a multi-bin collator. A first motor is mounted on the frame of the deflector unit to drive transport rolls also mounted thereon. The transport roll provides the final impetus for moving the sheets into the collator bin. A second motor is mounted on the frame of the deflector unit to drive the unit to a selected bin. The motor may be reversible in order to approach a selected bin from either direction. Alternatively, movement of the deflector unit in the second direction may be obtained through a spring motor wound through deflector unit movement in the first direction. Speed of the spring-driven deflector unit is controlled by dynamic braking of the second motor. This collator may interact with a copier machine to provide semi-automatic duplexing and the speed of the transport rolls may be synchronized with the speed of the copier for moving copy sheets into bins while the sheet is still in the final processing station. The speed of the transport rolls is increased when the sheet leaves the final processing station.

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Boulder, CO, United States of America

Francis J Schell