| DEVELOPER PROBLEMS | |
| Temperature high | *** |
| Temperature low | |
| Exhausted developer | |
| Contaminated developer | |
| Diluted (incorrect preparation) | |
| Inadequate mixing of solutions | |
| No starter | * |
| FIXER PROBLEMS | |
| Exhausted fixer | * |
| Contaminated fixer | |
| WASHING PROBLEMS | |
| Inadequate water supply | |
| Dirty water | |
| Water filter needs replacement | |
| DRIER PROBLEMS | |
| Poor drying | |
| ROLLER PROBLEMS | |
| Roller speed too high | |
| Roller speed too low | * |
| Rollers pitted | * |
| Rollers mal-aligned | |
| Roller racks jumping | |
| SAFELIGHT PROBLEMS | |
| Safelight too close | ** |
| Bulb too strong>25 watts | ** |
| Filter inappropriate for film | ** |
| Darkroom leaking light | ** |
| STORAGE PROBLEMS | |
| Pressure (store film upright) | * |
| Storage temperature high | * |
| Exposed to radiation | ** |
| Chemicals out of date | ** |
| REPLENISHMENT PROBLEMS | |
| Rate too high | * |
| Rate too low | |
| X-RAY MACHINE PROBLEMS | |
| Electrical connection failure | |
| Machine failure | |