X-Ray processing trouble shooting guide Increased Film Speed Developer temperature is too high. Developer has been improperly mixed. Starter has not been initially added to the processor's developer. H.R. Simon developer starter or another, except Dupont HSD Starter.
Replenishment rate is too high.
Recirculation may have stopped in the developer in the processor. Incoming water is too hot. Incoming water is too hot. Safelight is incompatible with film.