SHEET PROCESSING APPARATUS EQUIPPED WITH LATERAL DISPLACEMENT CORRECTION FUNCTION

摘要

A sheet processing apparatus capable of discharging even a lateral displacement uncorrectable sheet onto a discharge tray without collision with an alignment plate. A finisher conveys a sheet along a conveying path. A shift unit corrects a lateral displacement of the sheet based on a result of detection by a lateral displacement detection sensor. Sheets discharged via the conveying path are stacked on a discharge tray. A pair of alignment plates disposed above the stacking tray are lowered and are moved between a standby position and an alignment position to be brought into abutment with respective opposite edges of the discharged sheet in the alignment position. A finisher controller makes a distance between the alignment plates in a standby position different according to a sheet type, even when a size of the sheet in the width direction is the same.

主权项

1. A sheet processing apparatus comprising:
a conveying unit configured to convey a sheet along a conveying path; a detection unit provided in the conveying path and configured to detect a position of the sheet in a width direction orthogonal to a conveying direction; a correction unit configured to correct the position of the sheet in the width direction based on a result of detection by said detection unit; a stacking unit configured to stack sheets discharged via the conveying path; an alignment unit disposed above said stacking unit and including a pair of alignment members which are moved in the width direction, said alignment unit being configured to bring said pair of alignment members into contact with opposite edges of a sheet having been discharged to thereby align the sheet; an acquisition unit configured to acquire a type of a sheet; and a control unit configured to control said alignment unit such that a distance between said pair of alignment members in a standby position is made different according to the sheet type acquired by said acquisition unit, even when a size of the sheet in the width direction is the same.