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| Laser printer print defects - Horizontal Smudges |  |
| Problem | Cause | Solution | How common* | Comments |
| Horizontal smudges | Paper-path contamination or damage | 1. See the Repetitive defect ruler. 2. Check the toner cartridge and replace it if necessary. 3. Check the fuser and replace it, if necessary | 8 | |
| *On a scale of 1-10, how often this problem occurs (10 being most likely). | ||||
