Trouble Shooting
| Steps | Cause | Solution | Parts |
| 1 | Scratches or dirt on the drum unit. | Replace the drum unit. <Video Link> | Drum unit (015-0275-22) |
| 2 | Scratches or dirt on the fuser. | Replace the fuser. | 220V Fuser (002-7476-0-SP) 110V Fuser (002-7536-0-SP) |
| 3 | Power supply malfunctioned (charger and grid output instability is too low). | Replace power supply. <Video Link> | 220V Power supply (005-3134-9-SP) |
