An image forming apparatus includes a discharge path through which the recording medium that has passed through the printing path is discharged; a reverse path in which the recording medium that has passed through the printing path is reversed; a resupply path in which the recording medium which reversely travels along the reverse path is guided to the printing path; a connection portion in which the printing path, the discharge path, the reverse path, and the resupply path cross one another; and a first guide member that is disposed in the connection portion.