Trouble Shooting
| Steps | Cause | Solution | Parts |
| 1 | The toner cartridge circuit board defective. | Replace the toner cartridge. <Video Link> | Toner (015-0273-22) |
| 2 | The drum contact board defective. | Replace the drum unit. <Video Link> | Drum unit (015-0275-22) |
| 3 | IFA98 board defective. | Replace the IFA98 board. | IFA98 board (004-2785-9-SP) |
| 4 | The main board defective. | Replace the main board MBA795 <Video Link> | Main board (004-3055-9-SP) <Video Link> |
