Trouble Shooting
| Steps | Cause | Solution | Parts |
| 1 | Toner remains low. | Replace the toner cartridge. <Video Link> | Toner (015-0273-22) |
| 2 | Poor positioning of LSU | Check if LSU is working OK, or replace drum if drum is damaged. <Video Link> | Drum unit (015-0275-22) |
| 3 | The power supply defective. | Replace the power supply. <Video Link> | 220V Power supply (005-3134-9-SP) |
