| 摘要 |
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.
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