Patent ID: 8066279

Claim:
A sheet conveyance apparatus comprising: a conveying unit configured to convey a sheet; a sensor unit including a plurality of sheet detection sensors configured to detect an end portion of a sheet conveyed by said conveying unit and arranged along a width direction perpendicular to a sheet conveyance direction; a drive unit configured to move said sensor unit in the width direction; a drive control unit configured to determine a direction in which said sensor unit is to be moved from a standby position in accordance with results of detection by the plurality of sheet detection sensors of when said sensor unit is at the standby position and configured to control said drive unit such that said sensor unit is moved in the determined direction; and a shift amount detection unit configured to detect a shift amount by which the sheet conveyed by said conveying unit is to be shifted in the width direction based on results of detection by the plurality of sheet detection sensors and a moving distance of said sensor unit from the standby position to a position where a change occurs in any of the results of detection by the plurality of sheet detection sensors while said sensor unit is moving.