Trouble Shooting
| Steps | Cause | Solution | Parts |
| 1 | There is dirt in the paper path | Wipe off the dirt. Please refer to the spacing of the various rollers in the image(see below). | |
| 2 | There is dirt on the surface of the OPC(Organic Photo Conductor) or the drum is damaged. | Replace with a new drum unit. <Video Link> | Drum (015-0275-22) |
| 3 | The toner cartridge near end of life. | Replace the new toner cartridge unit. <Video Link> | Toner (015-0273-22) |
| 4 | There is dirt on the heating roller of the fuser. | Replace the fuser. | 220V fuser (002-7476-0-SP) 110V fuser (002-7536-0-SP) |
The spacing of various rollers in the image
Periodic image defects can be caused by defects in various rollers. Refer to the table below to determine the cause of the defect based on the diameter of the various rollers or the spacing in the image.
| The name of the part | The spacing in the image |
| Development roller. | 33.1 mm |
| Drum Unit (OPC). | 75.4 mm |
| Heating roller in the fuser. | 63.58 mm |
