Sheet conveyance apparatus and image forming apparatus

A sheet conveyance apparatus comprising:

• a first skew correcting portion including a first roller pair configured to convey a sheet and a second roller pair disposed upstream of the first roller pair in a sheet conveyance direction and configured to convey the sheet, the first skew correcting portion being configured to correct skew of the sheet conveyed by the second roller pair by abutting a leading edge of the sheet against the first roller pair so as to form a bend in the sheet;
• a second skew correcting portion including a turning roller pair configured to convey another sheet, the second skew correcting portion being configured to correct skew of the another sheet by conveying the another sheet with a turning motion using the turning roller pair;
• an acquisition unit configured to acquire information on length of a sheet to be conveyed;
• and
• a control unit configured to control the first skew correcting portion and the second skew correcting portion based on the information on the length of the sheet to be conveyed acquired by the acquisition unit,
• wherein, in a case where a first sheet with a length of a first length is to be conveyed, the control unit is configured to correct the skew of the first sheet by the second skew correcting portion, and
• wherein, in a case where a second sheet with a length of a second length that is longer than the first length is to be conveyed, the control unit is configured to correct the skew of the second sheet by the first skew correcting portion, and configured not to correct the skew of the second sheet by the second skew correcting portion.