| 摘要 |
<p>PROBLEM TO BE SOLVED: To effectively perform the movement of sheets for respective treatment operation on a treatment tray, even a sheet itself to be treated is of lock firmness and thin. SOLUTION: A sheet strength detecting means 170 is provided which is detecting sheet strengtn, and is protruded to the surface outer side of a surface portion to float the sheet P when the strength is low, and is sunk into the surface inner side of the surface portion to fully use the sheet strength when the strength is high, to any one side of the surface portion contacted by the sheet P in a vicinity where one side bundle discharge roller 180a is arranged in the stacking surface of a bundle discharging means, or the surface portion contacted by the sheet P in a vicinity where the other side bundle discharge roller 180b is arranged in an oscillation guide part 150.</p> |
