Abstract: This disclosure relates to a method and apparatus for taking flexible sheets off a delivery belt, such as from a scanner or copier, and restacking them in the order and orientation (face) they were originally scanned in. This requires flipping over such sheets by use of a spindle wheel with a plurality of fingers defining slots therebetween for receiving the sheets and reversing their face (flipping). By knowing the speed of the delivery belt and using a continuously spinning spindle wheel it is possible to avoid the effects of momentum on the fingers which distorts their position during stopping and starting action. Instead, the spindle wheel is in constant rotation but the speed of rotation is adjusted from a first speed, then a second tapering speed, to a third speed which is adapted to ensure that the slot between fingers is accurately presented to the leading edge as it enters the slot and does not get rejected by an accidental encounter with a finger.