Patent ID: 9242829
Filing Date: 2016-01-26
CPC Classification: B65H,G03G

Claim Text:
1. A sheet stacking apparatus comprising: a lowering control unit configured to lower a discharge tray based on an amount of sheets discharged to the discharge tray; a determination unit configured to determine that lowering of the discharge tray has been disabled before the discharge tray reaches a lower end position; a notification unit configured to notify removal of an object present below the discharge tray when it is determined that the lowering of the discharge tray has been disabled; a control unit configured to execute control to raise the discharge tray in response to the determination that the lowering of the discharge tray has been disabled; and a reception unit configured to receive an instruction for notifying the removal of the object to the sheet stacking apparatus by a user, wherein the control unit executes control to further lower the discharge tray after the instruction has been received.