Trouble Shooting
| Steps | Cause | Solution | Parts |
| 1 | Drum unit near end of life. | Replace the drum unit. <Video Link> | Drum unit (015-0333-22) |
| 2 | Poor contact of toner cartridge. | Replace the toner cartridge. <Video Link> | Toner (015-0292-22) |
| 3 | Dirt or scratch on fuser. | Replace the fuser. | Fuser AM4XA (002-B209-0-SP) AM4XA plus (002-C123-0-SP) |
| 4 | The power supply is faulty. | Please check the power supply <Video Link> | Power supply (002-B117-0-SP) |
| 5 | Transfer roller did not rotate well. | Replace the transfer roller. | Transfer roller (057-1680-0-SP) |
