| 摘要 |
PURPOSE:To improve stirring efficiency so as to eliminate precipitate and to improve the temp. control accuracy and temp. elevation characteristic of a processing liquid. CONSTITUTION:Circular holes 200 are provided at a prescribed pitch size on a spray pipe 60 and circular holes 202 are provided at the same pitch size as the pitch size of the circular holes 200 on the spray pipe 54. The ejection directions of the developers by the spray pipes 54, 60 are arranged zigzag from each other in the axial direction of the spray pipes 54, 60. The developers ejected from the circular holes 200, 202 do not, therefore, interfere with each other and do not negate the discharge pressures with each other in the state of not transporting PS plate. The stirring efficiency is consequently improved and the developers are stirred. The stagnation of the precipitate in the bottom of a developing tank does not arise any more. The spraying of a large amt. of the precipitate to the plate surfaces of the PS plates is thereby obviated. Further, the temp. control accuracy of the developers is improved and the temp. elevation characteristic is improved. |
