PURPOSE: To make contact printing, notwithstanding any shape of the surface of a photosensitive resin by bringing an original to close contact film with the photosensitive resin layer by supplying an org. solvent mainly contg. isoparaffin between the photosensitive resin layer and the original film.

CONSTITUTION: A contacting liquid is composed of a solvent mainly contg. isoparaffin having 10W13 carbon atoms, especally, a solvent having 150W210°C b.p. is preferably used. The contacting solution 4 is sprained between the photo sensitive layer 2 mounted on a cylinder 1 and the original film 3 by means of a spray etc., and the layer 2 is irradiated with an active ray 5 through the original film to print a faithful image on the original film. At the time of print ing the original film by the active ray, the contacting liquid is filled up in curved and uneven parts of the surface of the photosensitive resin layer, and the original film is brought into close contact and fixed on the surface of the layer.