High capacity sheet feeders for high volume printers

Details High capacity sheet feeders for high volume printers High capacity sheet feeders for high volume printers

1991-10-09

1992-12-01

Bollinger, David H.

Sheet feeding or delivering

Feeding

Pack holders

271152, 271157, 271162, B65H 102

Patent

active

051674084

ABSTRACT:
A multi-ream paper sheet feeder for use with high speed copiers, printing machines and the like "host machines" has a sturdy frame supporting an upwardly sloping ramp overlying a motor driven feed screw. A pusher plate drives a feed block of as many as thirty reams of edgewise stacked paper sheets up the ramp to a singulating feed assembly. A feed screw drive nut carriage engages and drives the pusher plate up ramp, then disengages, retracts under the ramp and travels to a new start position at the ramp's lower end. Sensors and limit switches govern forward and reverse feed screw motor operation; another sensor governs the operation of the singulating feed assembly, delivering shingled sheets on demand to the feeder's infeed tray. The entire sheet feeder is track-mounted, latched in feed position, disengageable for retraction away from the host machine when desired.

REFERENCES:
patent: 1396622 (1921-11-01), Bullen et al.
patent: 2992820 (1961-07-01), Tarbuck et al.
patent: 3240488 (1966-03-01), Lyman

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