Sheet set separator for electrophotographic copier

Details Sheet set separator for electrophotographic copier Sheet set separator for electrophotographic copier

1980-02-11

1984-11-06

Stoner, Jr., Bruce H.

Sheet feeding or delivering

Delivering

Rotary conveyor

271182, 271184, 271207, 271225, 271272, 271314, 414 54, 414 90, B65H 2914, B65H 3306

Patent

active

044808259

ABSTRACT:
Apparatus for separating sets of sheets such as copy sheets from an electrophotographic copier by delivering alternate sets of sheets to a stationary tray along overlapping laterally spaced paths. Sheets are fed first through a first, transversely fixed assembly of opposing feed rollers and then through a second, transversely movable assembly of feed rollers into a stacking tray. Sheets belonging to alternate sets are offset by shifting the second set of rollers laterally following the emergence of their trailing edges from the first set of rollers. In the preferred embodiment, the emergence of the trailing sheet edge from the first set of rollers is sensed by driving the second set of rollers at a slightly greater linear speed and sensing the retarding torque transmitted through the sheet from the first set of rollers.

REFERENCES:
patent: 2939702 (1960-06-01), Morrison et al.
patent: 3062537 (1962-11-01), Hanstein et al.
patent: 3071373 (1963-01-01), DiVeto
patent: 3873083 (1975-03-01), Fujimoto
patent: 3994487 (1976-11-01), Wicklund
patent: 3998329 (1976-12-01), Araya et al.

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