Patent ID: 6666443
Filing Date: 2003-12-23
Classification: B65H,Y10S

Abstract:
A sheet finisher comprising:(a) a stacker for stacking sheets conveyed-in one by one from an image forming apparatus; (b) a stapler for stapling stacked sheets; and (c) a conveying timing adjustment section arranged upstream of the stacker, comprising: (1) a conveying-in section for conveying-in a sheet from the image forming apparatus; (2) a conveying-out section separately provided from the conveying-in section for conveying-out the sheet; (3) a reversal conveying section for reversing a conveying direction of the sheet conveyed in one direction from the conveying-in section and for conveying-out from the conveying-out section; and (4) a controller for controlling the reversal conveying section, wherein the controller controls the reversal conveying section such that at least a second bundle or a bundle after the second bundle of sheet bundles to be stapled by the stapler, in which a plurality of sheets having at least a top sheet and a succeeding sheet to the top sheet are overlapped each other, is conveyed-out from the reversal conveying section.