Patent ID: 6283354
Filing Date: 2001-09-04
Classification: B42C,B65H

Abstract:
A sheet processing apparatus having selectable functions of either or both of stapling sheets together and shifting respective bundles of sheets so as to store said sheets at different discharging positions, wherein said sheets are fed from an image forming apparatus one by one after images are formed on said sheets, said sheet processing apparatus comprising:a stapler to staple said sheets together;a sheet guide which guides said sheets along a sheet transporting path from said image forming apparatus to a predetermined position irrespective of whether said sheet processing apparatus is in a stapling mode in which said stapler staples said sheets at said predetermined position or a non-stapling mode in which said stapler does not staple said sheets at said predetermined position, and irrespective of sizes of said sheets;a truing member for arranging and shifting said sheets in a direction perpendicular to a sheet conveying direction at said predetermined position;shift truing means for moving said truing member in the direction perpendicular to said sheet conveying direction so that a moving distance of said truing member for arranging said sheets is different from a moving distance of said truing member for shifting said sheets; anda reference surface which is immovable relative to said sheet conveying direction which is positioned so that edges of said sheets are butted against said reference surface at said predetermined position.