Horizontal White Lines
| Problem | Cause | Solution | How common* | Comments |
| Horizontal white lines | 1. Check the toner cartridge and replace it if necessary. 2. Check the fuser and replace it if necessary. 3. Replace the laser/scanner assembly, followed by the engine controller board, if necessary. | 9 | ||
| *On a scale of 1-10, how often this problem occurs (10 being most likely). | ||||
