| 摘要 |
PURPOSE:To stably obtain a uniform development result with a simplified replenishing device, replenishing operation, and a comparatively small amount of developing solution by using an unused fresh developing solution in one developing zone, and a repeatedly used developing solution supplied with a replenishing solution. CONSTITUTION:The developing solution is fed from a shower pipe 6 in the first developing zone on a PS plate in a developing section 1 composed of the first and second developing zones, and then, flows down to a developing solution tank 12. The developing solution stored in the tank 12 is recycled to the shower pipe 6 with a pump 13, and the tank 12 is supplied with the replenishing solution from a replenishing solution tank 14. In the second developing zone, a concentrated developing solution contained in a concentrated developing solution tank 15 and diluting water contained in a diluting water tank 16 are mixed in a prescribed ratio with pumps 18a and 18b and delivered through a developing solution feeder 9 to the PS plate. Both solutions are uniformly mixed in the piping on the way and the feeder 9, but when needed, a mixer may be installed. |
