Patent ID: 7942407

Claim:
A sheet processing apparatus comprising: a process tray on which a sheet is stacked; a delivery member configured to deliver a sheet to the process tray, a stopper positioned adjacent to the process tray and configured to be in contact with the sheet delivered to the process tray; a transport member configured to at least one of rotate and move in a state of pressing the sheet toward the process tray, and to transport the sheet on the process tray thereby contacting the sheet with the stopper; and a controller configured to change at least one of an amount of rotation and an amount of movement of the transport member in case the process tray has a single sheet stacked thereon and in case the process tray has a plurality of sheets stacked thereon, wherein the stopper is positioned at an upstream side of a delivery direction by the delivery member and is adapted to be in contact with a rear end of the sheet on the process tray, and the transport member transports the sheet to the upstream side in a state of contacting a surface of the sheet thereby pressing the sheet toward the process tray.