Patent ID: 8777219

Claim:
A sheet conveyance apparatus comprising: a first conveyance unit configured to convey a sheet; a second conveyance unit configured to convey the sheet conveyed by the first conveying unit while pinching the same; a position detection unit configured to detect a position of an end portion of the sheet being conveyed in a width direction which is orthogonal to the sheet conveyance direction; a correction unit configured to move the second conveyance unit pinching the sheet in the width direction to correct positional deviation in the width direction of the sheet; a control unit configured to control the operation of the correction unit so as to correct the positional deviation based on the detection result of the position detection unit; and a skew detection unit configured to detect skew of the sheet before the sheet leading edge portion abuts on the second conveyance unit, wherein the control unit is configured, when a deviation amount of the position of the end portion of the sheet detected by the position detection unit from a reference position is equal to or smaller than a predetermined amount, to move the second conveyance unit in the width direction by the deviation amount, wherein the control unit is configured, when the deviation amount of the position of the end portion of the sheet detected by the position detection unit from the reference position exceeds the predetermined amount, to move the second conveyance unit in the width direction by an amount equal to or smaller than the predetermined amount, wherein the first conveyance unit is configured to correct the skew of the sheet by causing the sheet leading edge portion to abut on the second conveyance unit, and wherein the control unit is configured to set the predetermined amount based on the detection result of the skew detection unit.