Patent ID: 8172224

Claim:
A sheet discharge apparatus comprising: a first stack tray which stacks sheets thereon; a pair of discharge rollers which discharges a sheet onto the first stack tray and which is adapted to convey the sheet in an opposite direction from a discharge direction of the sheet; a conveying member which conveys the sheets to the pair of discharge rollers; a second stack tray on which the pair of discharge rollers conveys the sheets in the opposite direction from the discharge direction to overlap the sheet; an end stopper on which the sheet conveyed in the opposite direction by the pair of discharge rollers is abutted to align; a changing unit which changes a discharge angle of the pair of discharge rollers; and a control unit which changes the discharge angle of the pair of discharge rollers by the changing unit such that a first discharge direction in a first discharge mode which discharges sheets one by one is closer to the first stack tray than a second discharge direction in a second discharge mode which discharges a plurality of overlapped sheets on the first stack tray from the second stack tray at one time, wherein the opposite direction from the second discharge direction is set to direct sheets to a lower position of the end stopper at reversal rotation of the pair of discharge rollers.