the cover 132 and the guide plate 116 so that the photographic printing paper p can be prevented from separating from the guide rollers 122 further the guide rollers 122 are attached so as to be freely rotatable to the attachment surfaces 117 which are formed so as to be a step lower than the flat surface formed by the guide plate 116 therefore the transverse direction end portions of the photographic printing paper p guided by the guide rollers 122 do not contact the corner portions 122a of the guide rollers 122 as a result the transverse direction end portions of the photographic printing paper p are not damaged due to contact with the corner portions 122a moreover in the closed state illustrated in fig3 the guide plate 116 is reliably fixed by the abutment member 136 and the pusher plate 138 which contact and position the guide plate 116 the photographic printing paper p which has been delivered out to the photographic printing device 10 is cut to a predetermined length by the cutter 22 the cut photographic printing paper p moves on the supporting stand 46 due to the endless belt 42 an image is printed on the photographic printing paper p which is then sent to the developing device 36 via the conveying path 34 and the printed image is developed accordingly when the image is printed.