Abstract: An original conveying apparatus includes an original stacker, a separator for separating the stacked originals from an upper side and for supplying the separated originals, a conveyor for conveying the separated originals to pass them through a reading portion and holding the originals in page sequence, a driver for rotating the conveyor normally or reversely, a discharger for returning the original to the original stacker and a controller for controlling the driver, the discharger and the separator so that an original is selected and set on the reading portion.

Abstract: This invention relates to a sheet post treatment apparatus having receive means for receiving sheets, align means provided with a reference member providing a reference for aligning the sheets and a moving member movable relative to the reference member to align the sheets, and control means for controlling the aligning means to cause the moving member to wait at a different position in conformity with sheet size information before the discharge of the sheets in a case where the sheets discharged from an image forming apparatus are discharged so that the centers thereof may coincide with one another irrespective of the sizes of the sheets.