An automatic packaging system has a first feed mechanism for feeding a light-shielded photosensitive roll in the direction indicated by the arrow A, an inspection mechanism for reading bar-code information from the light-shielded photosensitive roll, measuring and comparing dimensions of the light-shielded photosensitive roll with the bar-code information to inspect whether the light-shielded photosensitive roll is correct or wrong, a second feed mechanism for feeding the light-shielded photosensitive roll in the direction indicated by the arrow B if the light-shielded photosensitive roll judged as being correct, and a third feed mechanism for feeding the light-shielded photosensitive roll in the direction indicated by the arrow C.