Apparatus and method for replenishing developer

Details Apparatus and method for replenishing developer Apparatus and method for replenishing developer

1994-01-28

1995-05-16

Rutledge, D.

354324, G03D 500, G03D 302

Patent

active

054165520

ABSTRACT:
A replenishing solution is mixed from liquid concentrate and tap water. Rather than measure the flow of liquids, apparatus measures static volumes of reagents, then transfers the reagents to a replenishing tank where they are mixed and brought to a predetermined temperature. Precise volumes are measured by weirs in each of the containers for water and concentrate. The replenishing solution is added to a developer in amounts determined by the pH of the developer. The electrode of a meter used for measuring pH are protected from scale or deposits by a sequestering agent, preferably EDTA, in the replenishing solution.

REFERENCES:
patent: 3630865 (1971-12-01), Minklei et al.
patent: 4042444 (1977-08-01), Snyder
patent: 4190481 (1980-02-01), Goffredo
patent: 4501480 (1985-02-01), Matsui et al.
patent: 4577950 (1986-03-01), Mackson
patent: 4710261 (1987-12-01), Dennis
patent: 4755844 (1988-07-01), Tsuchiya et al.
patent: 4826605 (1989-05-01), Doble et al.
patent: 4886590 (1989-12-01), Tittle
patent: 5019229 (1991-05-01), Grapentin et al.
patent: 5032204 (1991-07-01), Haas
patent: 5223881 (1993-06-01), Nakagawa et al.
patent: 5237360 (1993-08-01), Patton

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