Patent ID: 8146909
Filing Date: 2012-04-03
Classification: B65H,G03G

Abstract:
1. A sheet aligning device comprising: a conveying unit that receives at least one sheet from an upstream unit and conveys the at least one sheet on a conveying path; a stacking unit that stacks the at least one sheet conveyed from the conveying unit; a first aligning unit that sets the at least one sheet back in a direction opposite to a sheet conveying direction and aligns the at least one sheet by bumping the at least one sheet against a reference wall; a sheet discharging unit that discharges the at least one sheet from the stacking unit in the sheet conveying direction; and a control unit that, when a predetermined condition is satisfied, sets a timing for the discharging unit to discharge the at least one sheet as the first aligning unit is setting the at least one sheet back in the direction opposite to the sheet conveying direction but prior to the first aligning unit successfully completing the bumping of the at least one sheet against the reference wall.