Sheet conveying apparatus, image forming apparatus and image reading apparatus

A sheet conveying apparatus comprising:

• a skew correction roller configured to convey a sheet by nipping the sheet and capable of pivotally moving to correct the skew of the sheet;
• a sheet position detection unit configured to detect the skew of a sheet and a shift from a reference position in a direction intersecting with a sheet conveying direction before a sheet is nipped by the skew correction roller;
• and
• a controlling unit configured to control pivotal moving of the skew correction roller, wherein
• the controlling unit so controls the pivotal movement of the skew correction roller that the skew correction roller is pivotally moved by a skew amount obtained by adding a first skew amount for correcting the skew of a sheet and a second skew amount for correcting a sheet position in a direction intersecting with the sheet conveying direction before the sheet is nipped by the skew correction roller and the skew correction roller is pivotally moved by the first skew amount in the direction opposite to the direction in which the sheet is skewed detected by the sheet position detection unit after the sheet is nipped by the skew correction roller for correcting the skew of the sheet, and
• the first skew amount is an amount for correcting an amount of the skew of a sheet detected by said sheet position detection unit, and the second skew amount is set to an amount for correcting a shift in the direction intersecting with the sheet conveying direction in a case where the skew of a sheet has been corrected and a shift in the direction intersecting with the sheet conveying direction, detected by said sheet position detection unit.