To prevent the occurrence of uneven feeding by a developing roller.

The developing roller 26 and an exposure head are arranged having a spacing L therebetween apart more than the length L2 between the front end edge on the transporting direction side of an instant film 21 and the rear end on the transporting direction side of an exposable regions 21a. Pinch rollers 25 are arranged near the exposure head. When the instant film 21 is delivered by a claw and the front end edge of the instant film 21 arrives at pinch rollers 25, the exposable region 21a exists right below an exposure opening 20a. The transportation of the instant film 21 and the three color sequential exposure by the exposure head are simultaneously performed at the point of this time. When the front end edge of the instant film 21 arrives at the developing roller 26, the three color simultaneous exposure by the exposure head is completed. As a result, only the transportation of the instant film 21 is carried out when a developer pod is crushed by the developing roller 26. The occurrence of the uneven feeding by the developing roller 26 can thus be prevented.