| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet post-processing apparatus for achieving further miniaturization, by enabling folding processing of twofold and threefold.SOLUTION: A first folding device 220 includes first folding roller pairs 223 constituted of a common roller 223A and a first roller 223B, and a blade member 222 for feeding a sheet T into a first nip, and forms a first fold line T1 in the sheet T in the first nip. A second folding device 270 includes second folding roller pairs 273 constituted of the common roller 223A and a second roller 273B, and forms a second fold line in the sheet T in a second nip N2. The common roller 223A and the first roller 223B are parallel in the direction for extending the conveying direction D1 when guiding the sheet T to the first folding device 220. The blade member 222 moves along the direction D3 substantially orthogonal to a conveyance surface D1-D2, and the common roller 223A is arranged on the upstream side of the conveying direction D1 to the first roller 223B. |
