Patent
1994-09-21
1995-12-26
Rutledge, D.
354325, 354298, G03D 302
Patent
active
054792339
ABSTRACT:
A photosensitive lithographic printing plate processing apparatus in which at least one of a gum solution and a plate baking conditioner stored in respective reservoirs is applied to a surface of a photosensitive lithographic printing plate that has been subject to developing processing.
A solution-replenishing device supplies at least one of the gum solution and the plate baking conditioner to the respective reservoirs. A water-supplying device supplies water to the reservoirs. A concentration-measuring device measures a concentration of at least one of the gum solution and the plate baking conditioner which are stored in the respective reservoirs. A concentration-regulating device regulates the concentration of at least one of the gum solution and the plate baking conditioner by operating at least one of the water-supplying device and the solution-replenishing device in at least one of a case in which a measured value of the concentration, which is measured by the concentration-measuring device, differs from a predetermined value and a case in which the measured value of the concentration lies outside a predetermined range.
REFERENCES:
patent: 4284343 (1981-08-01), Junghanns
patent: 4969480 (1990-11-01), Hughes
patent: 5223881 (1993-06-01), Nakagawa et al.
Miyazaki Sonosuke
Nakamura Masao
Takekoshi Tomoaki
Fuji Photo Film Co. , Ltd.
Penny John J.
Rutledge D.
Turner Richard C.
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