Patent ID: 9141066
Filing Date: 2015-09-22
Classification: G03G

Abstract:
1. A sheet processing apparatus comprising: a conveyance unit configured to convey a sheet; a sensor unit configured to have a plurality of sensors that are arranged in a sheet width direction that intersects perpendicularly with a sheet conveyance direction, and that detect a side end of a sheet in the sheet width direction; a moving unit configured to move said sensor unit in the sheet width direction; a control unit configured to control said moving unit so as to move said sensor unit at a first movement speed during conveyance of the sheet by said conveyance unit, and so as to move said sensor unit at a second movement speed after the side end of the sheet is detected by a first sensor among the plurality of sensors so that the side end of the sheet is detected by a second sensor among the plurality of sensors; an obtaining unit configured to obtain a sheet length of the sheet in the sheet conveyance direction; and a setting unit configured to set up the second movement speed based on the sheet length obtained by said obtaining unit, wherein said control unit controls said moving unit so as to move said sensor unit at the second movement speed set up by said setting unit until the side end of the sheet is detected by the second sensor after the side end of the sheet is detected by the first sensor.