Processing photographic material

Details Processing photographic material Processing photographic material

1998-10-06

2000-12-26

Rutledge, D.

Photography

Fluid-treating apparatus

Photographic medium or cartridge sensing

396578, G03D 1300

Patent

active

061648450

ABSTRACT:
Processing of photographic material is carried out by sensing the quantity of material passing through a processor and supplying replenishment solution in accordance therewith. The level of solution in the processing tanks is also sensed during processing, and a second solution is supplied in the event that the level falls below a predetermined value. The second solution is less concentrated than the normal replenishment solution, thereby to maintain the chemical activity of the tank closer to its required, seasoned state. Furthermore, by controlling the solution levels during processing, less replenishment solution need be added during normal replenishment, thus minimizing the amount of solutions needed.

REFERENCES:
patent: 4329042 (1982-05-01), Libicky et al.
patent: 4346981 (1982-08-01), Kaufmann

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