A document feeder includes a substantially U-shaped document transporting pathway with an upper feeding tray and a lower discharging tray, a separating-transporting device including a first rotation driving member and a first contacting member, a reverse transporting device including a second rotation driving member and a second contacting member and a pathway cover, which includes at least the second contacting member among the first and second contacting members, and capable of rotating about a rotational shaft closer to the discharging tray than the feeding tray. When the pathway cover is opened, at least the second contacting member of the first and second contacting members is separated from the second rotation member and at least a part of the document transporting pathway is exposed.