Patent ID: 7673863
Filing Date: 2010-03-09
Classification: B65H

Abstract:
1. A sheet post-processing apparatus comprising: stitch processing means for stitching a sheet bundle transported through a transport path at plural places along a straight line orthogonal to a transport direction with staples; folding means provided with a pair of folding rollers disposed at a later stage of the transport path with respect to the stitch processing means and a blade to push the sheet bundle into a contact part of the pair of folding rollers; a folding roller drive motor to drive the pair of folding rollers; and control means for acquiring sheet type information of the sheet bundle and for controlling a drive or stop operation of the folding roller drive motor according to a folding processing step of the sheet bundle, wherein the control means changes a speed of the folding roller drive motor during a period before the blade comes in contact with the sheet bundle, a speed of the folding roller drive motor during a period when the sheet bundle after folding work is being transported to a discharge port, a speed of the folding roller drive motor during a period when the sheet bundle is being discharged, and a speed of the folding roller drive motor during a period when the folding roller drive motor is being returned to a home position, in accordance with the sheet type.