| 摘要 |
Provided is a sheet processing apparatus, including: a sheet conveying portion conveying a sheet to a sheet stacking portion; a regulating portion regulating a position of the sheet on the stacking portion; a rotary member pair having first and second rotary members and conveying the sheet toward the regulating portion through rotation in a first direction, and conveying a bound sheet bundle through rotation in a second direction opposite to the first direction; a moving portion moving the second rotary member to a separation position after the rotary member pair conveys the sheet, and moving the second rotary member to a nipping position before the rotary member pair conveys the sheet bundle; and a control portion controlling to rotate the rotary member pair in the second direction after the second rotary member is moved to the separation position and before the second rotary member is moved to the nipping position. |
