| 摘要 |
A sheet folding device includes a folding plate (74) that puts a fold line in a sheet bundle conveyed along a sheet conveying path at a folding position, folding rollers (81) that fold the sheet bundle by pinching a portion of the sheet bundle around the fold line at a nip part between the folding rollers (81), a sheet position adjusting unit (73) that supports and moves the sheet bundle and adjusts the sheet bundle to the folding position of the folding plate (74), a sheet conveying unit (71,72) that conveys the sheet bundle with pressure toward the sheet position adjusting unit (73), and a drive device that drives the sheet position adjusting unit (73) to move to a standby position located downstream of the folding position of the folding plate (74) in the sheet conveying direction, and that drives the sheet position adjusting unit (73) to move again after the pressure of the sheet conveying unit is released. <IMAGE> |
