Patent
1993-09-29
1995-06-06
Rutledge, D.
354336, G03D 1302
Patent
active
054226988
ABSTRACT:
A photosensitive material processing apparatus having a processing tank in which a processing solution for processing a photosensitive material is stored, and rollers or the like for conveying the photosensitive material along a predetermined path within the processing tank. By maintaining a humidity of upper portion spaces of the processing tank at greater than or equal to 80%RH, dirtying of machinery due to crystal deposition of processing chemicals and non-uniformity of the processing solution are prevented. In order to maintain the humidity of the upper portion spaces of the processing tank at greater than or equal to 80%RH, a cover having an opening ratio of less than or equal to 40% is disposed at an upper portion of the processing tank, and spaces enclosed by the cover are not ventilated by fans. Further, it is preferable that a ratio of a volume of the upper portion spaces of the processing tank enclosed by a cover to an area of an exposed surface of the solution within the processing tank is 0.5 cm.sup.3 /cm.sup.2 to 10 cm.sup.3 /cm.sup.2.
REFERENCES:
patent: 3599554 (1971-08-01), Aelterman et al.
patent: 4931378 (1990-06-01), Hirano et al.
patent: 5043756 (1991-08-01), Takabayahsi
Ishikawa Takatoshi
Kawada Ken
Fuji Photo Film Co. , Ltd.
Lehnigk George
Rutledge D.
Turner Richard C.
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