An objective of the present invention is to provide a post processing apparatus to load a center-folded sheet on a loading member and unload the paper sheets when a number of sheet reaches a predetermined number without damages with sheets. A Post-processing apparatus having a center folding member for...http://www.google.es/patents/US7178799?utm_source=gb-gplus-sharePatente US7178799 - Post processing device with saddle support
