SHEET PROCESSING DEVICE AND IMAGE FORMATION DEVICE INCLUDING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a sheet processing device which reduces a situation that a folded sheet is opened after accumulation to reduce an accumulation amount and prevents a sheet end part from being caught between front and rear pressing rollers and causing jamming when the folded loop pressing roller pair is arranged as a row.SOLUTION: A sheet processing device includes: pressing rollers 70 which press a folded loop BL of a folded sheet from a thickness direction; and a support unit 56 which moves the pressing rollers along the folded loop with the pressing rollers facing each other and is formed by arranging the pressing rollers into multiple lines so that a distance between the pressing rollers gradually narrows from a downstream side to an upstream side in a travel direction. In the support unit, a guide plate 201 (a guide member) having a guide part which guides the folded loop is disposed between front and rear pressing rollers in the travel direction.SELECTED DRAWING: Figure 8