Trouble Shooting
| Step | Cause | Solution | Parts |
| 1 | Charger wire contaminated. | Clean the charger of the drum unit. Refer to the following cleaning method of the charger wire(see below). | |
| 2 | Charger wire broken. | Replace the drum unit. <Video Link> | Drum unit (015-0333-22) |
| 3 | The power supply board defective. | Please check the power supply <Video Link> | Power supply (002-B117-0-SP) |
<Cleaning Method of Charge Wire>, Slide the charge wire to the end and then back to the original place. Repeat this for at least 3 times.
