1991-05-30
1993-02-02
Wintercorn, Richard A.
354324, G03D 1300, G03D 302
Patent
active
051841649
ABSTRACT:
A photosensitive material processor having a processing tank for processing a photosensitive material includes a circulating pipeline having a circulating pump for circulating a liquid in the processing tank; a first pump for supplying for supplying a stock solution to a mixing tank; a second pump for supplying a dilution liquid to the mixing tank; a supply pipeline for connecting the mixing tank and a portion of the circulating pipeline upstream of the circulating pump so that the processing solution prepared in the mixing tank is supplied to the processing tank; and a controller for controlling the first and second pumps so that a ratio of periods of discharge of the liquids becomes a predetermined ratio and for operating the circulating pump when the stock solution and the dilution liquid are supplied to the mixing tank by predetermined amounts. Accordingly, in a case where the processing solution is supplied to an empty processing tank, since the circulating pump is operated when the stock solution and the dilution liquid are supplied to the mixing tank by predetermined amounts, the processing solution is sucked by the circulating pump, and air is prevented from remaining in the supply pipeline and the like.
REFERENCES:
patent: 4103358 (1978-07-01), Gacki et al.
patent: 4165186 (1979-08-01), Tortorich et al.
patent: 4814809 (1989-03-01), De Prijcker et al.
Kose Junichi
Nozaki Ryoei
Sugiyama Akira
Yamada Minoru
Fuji Photo Film Co. , Ltd.
Rutledge D.
Wintercorn Richard A.
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