Abstract: The present invention provides an apparatus for recording an image on a photosensitive material, wherein a recording drum 2 is enclosed with an enclosure 10 in which an opening 12 is provided in the direction of movement of a recording head 6. The opening 12 is covered with a light shield member 14 and the light shield member 14 is wound by winding shafts 24 and 26 at its both ends. To the light shield member 14 there is provided a through hole 16, into which an image forming lens 18 of the recording head 6 is inserted. Thus the recording head 6 is allowed to be movable and light shielding is effected only by the small-sized enclosure 10.

Abstract: Density signals (S.sub.y, S.sub.M, S.sub.C, S.sub.K) representing yellow, magenta, cyan and black densities on an original color image are inputted and are subject to color computations in a color computation circuit (202). The corrected density signals (S.sub.Y1, S.sub.M1, S.sub.C1 S.sub.K1) are converted into halftone dot singals (S.sub.DY, S.sub.DM, S.sub.DC, S.sub.DK), respectively. The halftone dot signal for black is combined with the other three halftone dot signals individually in combining circuits (204.sub.y, 204.sub.m, 204.sub.c) and are employed for recording a color proof image on a color photosensitive film (PF).