Trouble Shooting
| Step | Cause | Solution | Parts |
| 1 | Lamp defective. | Replace fuser. | Fuser (015-0301-0) |
| 2 | Temperature sensor defective. | Replace thermistor temperature sensor. | Fuser temperature sensor (008-0347-9-SP). |
| 3 | Main board defective. | Relace main board MBA890. | Main board: AM7630i (004-3479A-9-SP) AM7640i (004-3479B-9-SP) AM5630i (004-3479C-9-SP) AM5640i (004-3479D-9-SP) |
