Conveyance apparatus

A conveyance apparatus that conveys a sheet by passing the sheet through a nip formed between a first conveyance roller and a second conveyance roller contacting each other, the conveyance apparatus comprising

• a first gate member, a second gate member, and a third gate member into which a rotational shaft of the first conveyance roller is loosely inserted, the first and second gate members being disposed at a predefined interval, the third gate member being disposed between the first and second gate members, wherein
• the first, second, and third gate members each include a portion protruding radially outwards, and the protruding portions are positioned on a conveyance path during no sheet conveyance, the protruding portion of the third gate member being positioned upstream of the protruding portions of the first and second gate members in a conveyance direction,
• when a first sheet having a width equal to the predefined interval or larger is conveyed, the protruding portions of the first, second, and third gate members push back a leading edge of the first sheet, and then move away from the conveyance path, and
• when a second sheet having a width smaller than the predefined interval is conveyed, only the protruding portion of the third gate member pushes back a leading edge of the second sheet, and then moves away from the conveyance path.