A sheet processing apparatus including a stapler for executing a stapling process, a sheet detection sensor for detecting a sheet as a processing target, and an execution button for receiving from a user an execution instruction to execute the stapling process, after the sheet detection sensor detects a sheet, in a case where the execution button is pressed before a predetermined time elapses, causes the stapler to execute the stapling process according to the execution button being pressed, and in a case where the execution button is not pressed, causes the stapler to execute the stapling process according to lapse of the predetermined time. Further, the sheet processing apparatus sets whether the execution of the stapling process according to the lapse of the predetermined time is enabled.

The purpose of the present invention is to provide a sheet bundle conveying apparatus capable of discharging a sheet bundle from a processing tray where a binding process is performed toward the downstream side in right posture to a right position. The present invention comprises a sheet bundle conveying apparatus which conveys sheets stacked at a stack portion to a storing portion at the downstream side including a first conveying member which conveys sheets at the stack portion by a predetermined distance, a second conveying member which performs relay conveyance of the sheets conveyed by the first conveying member by the predetermined distance as being set to have a higher moving speed than that of the first conveying member, and a driving portion which drives the first conveying member and the second conveying member.

The purpose of the present invention is to provide a sheet bundle conveying apparatus capable of discharging a sheet bundle from a processing tray where a binding process is performed toward the downstream side in right posture to a right position. The present invention comprises a sheet bundle conveying apparatus which conveys sheets stacked at a stack portion to a storing portion at the downstream side including a first conveying member which conveys sheets at the stack portion by a predetermined distance, a second conveying member which performs relay conveyance of the sheets conveyed by the first conveying member by the predetermined distance as being set to have a higher moving speed than that of the first conveying member, and a driving portion which drives the first conveying member and the second conveying member.

A post-processing apparatus configured to collect printed sheets ejected from an image forming apparatus and to handle the printed sheets. The post-processing apparatus has: a stacker configured to collect and stack a plurality of printed sheets with one end of each of the printed sheets placed down; a movable stopper configured to stop each of the printed sheets sliding down in the stacker at a specified position; a motor configured to move the stopper along the stacker and stops the stopper; and a control unit configured to control the motor. The control unit increases a current supplied to the motor in preparation for a collision between each of the printed sheets and the stopper.

A post-processing apparatus configured to collect printed sheets ejected from an image forming apparatus and to handle the printed sheets. The post-processing apparatus has: a stacker configured to collect and stack a plurality of printed sheets with one end of each of the printed sheets placed down; a movable stopper configured to stop each of the printed sheets sliding down in the stacker at a specified position; a motor configured to move the stopper along the stacker and stops the stopper; and a control unit configured to control the motor. The control unit increases a current supplied to the motor in preparation for a collision between each of the printed sheets and the stopper.