A large turntable is mounted rotatably on a tray, and two paper cassettes are rotatably installed on the turntable. The turntable is rotated by a 180-degree rotating mechanism and a small angle rotating mechanism, while the paper cassette is rotated by a cassette rotating mechanism. The 180-degree rotating mechanism interchanges the paper cassette on a feeding side and the paper cassette on a non-feeding side by rotating the turntable. The small angle rotating mechanism aligns the center of paper stored in the paper cassette on the feeding side with a feeding center line by rotating the turntable. The cassette rotating mechanism positions the leading edge of the paper in the paper cassette on the feeding side at right angles to a feeding direction by rotating the paper cassette. Since the 180-degree rotating mechanism and the small angle rotating mechanism are installed in positions on the tray outside of the turning space of the turntable, an apparatus of a reduced height and size is achieved.