| 摘要 |
PROBLEM TO BE SOLVED: To enable cooling of both sides of a sheet to be exported to a processing tray from an inlet port, and at the same time enable cooling of a drive motor of a post-processing mechanism part.SOLUTION: A sheet post-processing device includes: a sheet ejecting area with a base end part in a sheet ejecting direction closed and a tip part in the sheet ejecting direction opened; an inlet port for letting-in a sheet arranged at the base end part of the area; a sheet ejection port arranged at the tip part of the area; a sheet ejecting route for guiding the sheet from the inlet port to the sheet ejection port; a processing tray arranged at a lower stage side, while forming a level difference to the sheet ejection port; a stack tray arranged at a downstream side in the sheet ejecting direction of the tip part of the area; and post-processing means arranged at an area base end part side of the processing tray. The inlet port and the sheet ejection port are arranged at such positions to form a level difference having a predetermined vertical interval. The sheet ejection route forms a gap for guiding the sheet from the inlet port to the sheet ejection port and has a curvature guide having a slope curvature part. The post-processing means is arranged inside a space surrounded by the curvature guide. In the sheet ejection area, a cooling fan is arranged. The cooling fan is configured to blow from the base end part of the area to the tip part of the area. |
