Patent ID: 6290220
Filing Date: 2001-09-18
Classification: B42C,B65H

Abstract:
A sheet treating apparatus including:sheet discharging means for discharging a sheet;first stacking means for receiving the sheets discharged by said sheet discharging means;aligning means for aligning a sheet bundle on said first stacking means by a pinching movement effected by first and second aligning members shiftable independently in a direction perpendicular to a sheet discharging direction;a plurality of driving means for driving said first and second aligning members independently;controlling means for controlling said driving means; andtransferring means for transferring the sheet bundle on said first stacking means to a second stacking means,wherein a first sheet bundle is aligned by using a first reference position obtained by shifting one of said first and second aligning members by a predetermined amount with respect to a lateral edge of the discharged sheet, and then a second sheet bundle is aligned by using a second reference position obtained by shifting the other aligning member by a predetermined amount with respect to a lateral edge of the discharged sheet, thereby the first sheet bundle and the second sheet bundle are made offset relative to each other, and such sheet bundle aligning operations are effected alternately for successive sheet bundles.