| 摘要 |
PROBLEM TO BE SOLVED: To prevent a sheet which is comparatively stiff or a sheet bundle from being damaged even if they are carried. SOLUTION: When the sheet whose thickness is equal to or over the prescribed thickness is detected by a sheet thickness detection means 50, a sheet curvature change means 90 is controlled by a control means 500 so that the curvature of both side edge parts of the sheet is more reduced than the case that the above sheet is not detected. When the folded sheet is detected by the detection means 50, the change means 90 is controlled by the control means 500 so that the curvature in the folded area is more reduced than that of the outside of the folded area. |
