Sheet finishing apparatus and image forming apparatus equipped with the same

摘要

A sheet finishing apparatus includes a discharge device having a pair of rotating shafts and discharge rotating bodies supported on the rotating shafts; a shift device for shifting the rotating shafts in a shaft direction; a support device for receiving and supporting the sheet discharged by the discharge means; an alignment device having an alignment reference member for aligning one edge of the sheet discharged on the support means and a moving member for moving the sheet to the alignment reference member along the shaft direction; a finishing device disposed at a side facing the support device with the alignment reference member in between for finishing the sheet aligned by the aligning device; and a shift tolerance portion disposed at a side facing the support device with the aligning device in between for allowing the rotating shafts to protrude when the shift device shifts the rotating shafts.