| 摘要 |
PURPOSE:To lengthen the lifetime of a developing solution, to decrease the quantity of a waste liquid, and to reduce the replacement quantity and frequency of a developing solution by adding an alkali component and the other developing solution components which are damaged by developing process to a transmitted liquid from an ultrafilter. CONSTITUTION:A photosensitive material is transported to a processing vessel 1, subjected to a designated processing, and then discharged. A replenisher supplied to the processing vessel 1 is stored in a replenisher storing tank 10, a used developing solution discharged from the processing vessel 1 is stored in a used developing solution storing tank 11, and a conditioning liquid supplied to a mixing tank 13 is stored in a conditioning liquid supply tank 12. In the mixing tank 13, a transmitted liquid of an ultrafilter 14 and a conditioning liquid from the conditioning liquid storing tank 12 are mixed to manufacture and store a replenisher. The ultrafilter 14 includes an ultrafiltration membrane with the fraction molecular weight of 100000 or less, and is adapted to ultrafiltrate a used developing solution. An enriching tank 15 enriches a used conditioning liquid. |
