To apply a small quantity of solvent for forming an image and to dry the solvent for forming an image in a short time.

A nozzle plate 322 formed of a thin plate which can be elastically deformed is set at a part opposed to a carrying path A for a photosensitive material 16 being a part of the wall surface of a spraying tank 312. Plural nozzle holes 324 for spraying water reservoired in the tank 312 are arranged in a line in a direction crossed with the carrying direction of the material 16 at regular intervals on the nozzle plate 322. A piezoelectric element 326 is stuck to the nozzle plate 322, and a power source is connected to the piezoelectric element 326.