Post-processing apparatus and image forming system including the post-processing apparatus

An image forming system including an image forming apparatus for forming an image on a sheet and a post-processing apparatus for performing predetermined post-processing on a sheet,

• wherein the post-processing apparatus comprises:
• a post-processing unit configured to perform predetermined post-processing on a sheet;
• a moving unit configured to move the post-processing unit to a first processing position where first processing is performed or to a second processing position where second processing is performed, wherein in the first processing, the predetermined post-processing is performed on a sheet which is conveyed from the image forming apparatus, and in the second processing, the predetermined post-processing is performed on a sheet which is manually inserted;
• and
• a control unit configured to control the post-processing unit to start moving after a difference in time between a first time period and a second time period is elapsed, in a case where the first time period, which is a time period to next execution of the predetermined post-processing in the first processing, is greater than the second time period, which is a time period for the post-processing unit to move to the first processing position.

A post-processing apparatus comprising:

• a binding unit configured to perform binding processing on a sheet bundle formed of a plurality of sheets;
• a moving unit configured to move the binding unit to an online stapling position where binding processing is performed on a sheet which is conveyed from an image forming apparatus or a manual stapling position where binding processing is performed on a sheet which is manually inserted;
• and
• a control unit configured to control the binding unit to start moving after a difference in time between a first time period and a second time period is elapsed in a case where the first time period, which is a time period to next execution of the binding processing at the online stapling position, is greater than the second time period, which is a time period for the binding unit to move to a processing position where the next binding processing is executed.