Post-processing apparatus capable of controlling movement of sheet guide according to presence or absence of post-processing, and image forming apparatus with post-processing apparatus

A post-processing apparatus comprising:

• a conveyance path that conveys a sheet in a predetermined direction of conveyance;
• an intermediate tray on which the sheet conveyed through the conveyance path is placed;
• a sheet guide that is provided movably on the intermediate tray and aligns a position of the sheet with respect to a sheet width direction orthogonal to the direction of conveyance;
• a control device comprising a processor and functioning, through the processor executing a control program, as a controller that controls operation of the post-processing apparatus and controls a position of the sheet guide;
• a post-processing device that subjects the sheet placed on the intermediate tray to post-processing;
• and
• an ejection conveyance device that ejects the sheet placed on the intermediate tray to a sheet output tray,
• wherein the controller moves, in a job with the post-processing, the sheet guide to a first position to allow the sheet guide to align the position of the sheet, and moves, in a job without the post-processing, the sheet guide to a second position lateral to a sheet width of the sheet in the sheet width direction, and
• when the job with the post-processing is followed by the job without the post-processing as long as a width of a sheet for use in the job without the post-processing is not larger than a width of a sheet for use in the job with the post-processing, the controller keeps from moving the sheet guide from the first position to the second position even after completion of the job with the post-processing.