Device for detecting aging of developer for automatic film devel

Details Device for detecting aging of developer for automatic film devel Device for detecting aging of developer for automatic film devel

1982-12-16

1985-03-19

Mathews, A. A.

354297, 354320, G03D 308

Patent

active

045055653

ABSTRACT:
A device for measuring the oxidation reduction potential of a developer for developing films to indicate the degree of aging of the developer on a meter. A control unit operates in response to the measurement output signal to automatically control the speed of development in accordance with the degree of aging of the developer.

REFERENCES:
patent: 3388652 (1968-06-01), Parrent
patent: 4153363 (1979-05-01), Albano
patent: 4240737 (1980-12-01), Lawson
patent: 4284343 (1981-08-01), Junghanns
patent: 4295913 (1981-10-01), Purr et al.
patent: 4304484 (1981-12-01), Mizuta et al.

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