| 摘要 |
PURPOSE:To securely develop both front and rear surfaces of a photosensitive planographic printing plate with least necessary amt. of a developing soln. by coating the front and rear surfaces of the printing plate with a specified amt. of a developing soln., dipping the coated printing plate in the developing soln. and proceeding rubbing development on the front and rear surfaces of the printing plate by a rubbing means in the developing soln. CONSTITUTION:A front and a rear surface of a photosensitive plate (PS plate) 12 are coated with a specified amt. of a developing soln., and the PS plate 12 is inserted into a slit 44 in this state. Since no developing soln. is stored in the slit 44 at a starting stage of operation of a PS plate processor 10, the developing soln. is supplied previously to the slit 44. The front and rear surfaces of the inserted PS plate 12 are dipped in the stored developing soln., and both surfaces are brushed with a brush 46 to prompt diffusion of the developing soln. into the plate surface. Thus, both front and rear surfaces of the PS plate are securely developed. |
