Patent ID: 8439341

Claim:
A sheet bundle treatment apparatus comprising: a folding device configured to perform a folding process on a sheet bundle including a plurality of sheets to produce a folded sheet bundle; a conveying unit configured to convey the folded sheet bundle; a flattening device configured to perform a flattening process to press a folded portion of the sheet bundle from the folded portion toward a fore edge to flatten the folded portion after the conveyance of the sheet bundle by the conveying unit; and a control unit configured to cause the sheet bundle to be conveyed at a first velocity when the flattening process is not to be performed, and to cause the sheet bundle to be conveyed at a second velocity which is slower than the first velocity when the flattening process is to be performed, thereby controlling the conveying unit to stop the sheet bundle at a position where the flattening process is to be performed.