SHEET FOLDING DEVICE, POST-PROCESSING DEVICE, AND IMAGE FORMING SYSTEM

摘要

Provided is a sheet folding device including a folding roll that has a convex portion spirally provided on an outer periphery surface and is rotatably provided, and performs a folding process while pressing the convex portion on a sheet, and a phase change unit that makes a phase of the folding roll when the sheet on which the folding process is performed by the folding roll passes through the folding roll again different from a phase when the sheet passes through the folding roll for the last time.

主权项

1. A sheet folding device comprising:
a folding roll that has a convex portion spirally provided on an outer periphery surface and is rotatably provided, and performs a folding process while pressing the convex portion on a sheet; and a phase change unit that makes a phase of the folding roll when the sheet on which the folding process is performed by the folding roll passes through the folding roll again different from a phase when the sheet passes through the folding roll for the last time.