Image forming apparatus

An image forming apparatus comprising:

• a plurality of medium transport paths that branch at a predetermined branching position and along which a medium is transported in a curved state;
• a switching member disposed at the branching position and comprising
• a plurality of guide surfaces that allow the medium to be transported along one of the medium transport paths, the switching member switching between the medium transport paths;
• and
• an output unit that outputs the medium toward a stacking portion, on which the medium is to be stacked, while corrugating the medium, wherein
• the output unit comprises a rotating member that rotates around a shaft,
• at least one of the plurality of guide surfaces guides the medium from the branching position toward the output unit in a region in which the medium is corrugated,
• the plurality of guide surfaces are integrally connected so that the switching member extends toward a front side in a medium transporting direction to a position where a portion of the switching member overlaps the rotating member when viewed in a direction of the shaft,
• the portion of the switching member that overlaps the rotating member extends partially around the shaft, and
• the portion that extends partially around the shaft directly contacts the shaft.