PURPOSE: To reduce the number of cutters and permit the restart of printing work immediately even after the stop of printing work by installing two loop parts equipped with two pairs of nipping transport rollers in a reservation part and installing a guide member which is shiftable, between said two loop parts.

CONSTITUTION: When the top edge of a photographic paper 16 for which light exposure is completed is nipped between the first nipping rollers 30 and 32, passing through a flap 70, said flap 70 is turned to the counterclock side 70' by the sensors 144 and 146, and a photographic paper 16 is sent to the second nipping rollers 90 and 98, and reaches a development part 14. The photographic paper sheets 16 after printing are collected in loop form between a guide plate 28 and the first nipping rollers 30 and 32. When a printing part 12 stops, and the rear edge of the photographic paper cut by a cutter 24 is detected by the sensors 140 and 142, the flap 70 returns to an original position, and the work in the printing part can be immediately restarted. Further, the operation can be carried out by installing the cutter only at one position.