Patent ID: 8246032

Claim:
A post-processing apparatus comprising: a sheet ejection tray to which a sheet is ejected; a stack section which ejects one or more sheets to the sheet ejection tray after collecting the one or more sheets therein; a sheet ejection control section which is controllable to select whether to eject the one or more sheets to the sheet ejection tray after collecting the one or more sheets in the stack section or to eject the one or more sheets to the sheet ejection tray without using the stack section; and an input section which accepts an input operation by a user; wherein the sheet ejection control section controls so as to repeat continuously until a designated job ends, a process including collecting the one or more sheets temporarily in the stack section until one of a prescribed period of time has elapsed and a prescribed number of sheets have been collected, and then to eject the collected sheets to the sheet ejection tray, when an input operation is accepted by the input section while ejecting a sheet to the sheet ejection tray without using the stack section.