Document feeder electronic registration gate

Details Document feeder electronic registration gate Document feeder electronic registration gate

1981-05-11

1984-06-19

Stoner, Jr., Bruce H.

Sheet feeding or delivering

Feeding

With means to align sheet

271265, 271DIG9, 355 35H, 355 76, B65H 920

Patent

active

044550189

ABSTRACT:
A sheet registration apparatus for positioning sheets in a registered position on a work surface such as the document platen of a convenience copier/duplicator machine. The apparatus includes a bidirectional servo-controlled sheet transport for conveying the sheet over the work surface. A sheet sensing device is disposed within the path of sheet travel. A controller monitors the sensing device and activates a position control routine following the occurrence of a predetermined level change in the signal generated by the sensing device. At the end of the position control routine, the transport is stopped thereby positioning the sheet in the registration zone. The apparatus enables sheet registration for a machine operating in a duplex and/or simplex mode. The apparatus further enables registration at any point on the document platen.

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Mahler, C. J. "Document Feeder without Register Gates", Xerox Disclosure Journal, vol. 2, No. 3, May/Jun. 1977, p. 49.
Taylor, T. N. "Document Registration System", Xerox Disclosure Journal, vol. 3, No. 2, Mar./Apr. 1978, pp. 123-125.
Gustafson, G. B. "Registration Mechanism" #18649, Research Disclosure, Oct. 1979, pp. 587-590.
European Patent Application 0 050 508 Filed Oct. 19, 1981, Published Apr. 28, 1982 Entitled "Original Feeder for Copying Machines" by P. DeSimone.

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