| 摘要 |
PROBLEM TO BE SOLVED: To perform off-set discharge of sheets at high speed and favorably without complicating the device configuration.SOLUTION: A registration part 57 of a post-processing device includes: a pair of first transport rollers 71 disposed in the vicinity of the downstream end of a sheet transport passage; a pair of second transport rollers 72 disposed on the upstream thereof; a main discharge tray 54 where the sheets passed through the sheet transport passage are loaded; an upstream cursor 73 for performing the shift operation to shift the sheet before passing through the sheet transport passage in the sheet width direction orthogonal to the transport direction; and a downstream cursor 74 for performing the width registration operation in the sheet width direction to the sheet loaded on the main discharge tray 54. In the shift operation, a transport nip part 71N of the pair of first rollers 71 is released, and after the shift operation, the transport nip part 71N is restored to discharge a sheet toward the main discharge tray 54. |
