Dirty Films

Rollers in the processor are dirty.
Water problems in the processor
Improper developer temperature.
Depleted developer in the processor.
Contaminated developer in the processor.
Developer or fixer has been improperly mixed.
Loss of circulation in the processor.
Developer filter is too small.
Improper drying.
Fixer in the processor is depleted.
Developer filter is clogged or dirty.