HP LaserJet Pro M201
Troubleshooting. Print quality. Repetitive defects ruler
If the product output has a consistent, repetitive defect, then use the table in this section to determine which part needs to be replaced based on the measured distance between the repetitions of the defect.
| Component | Distance between defects (mm) | Type of defects |
|---|---|---|
| Primary charging roller | About 27 | Dirt on page Dropouts |
| Photosensitive drum | About 75 | Dirt on page Dropouts |
| Developing roller | About 34 | Dirt on page Dropouts |
| Transfer roller | About 39 | Dropouts Dirt on the back of page |
| Fuser film | About 57 | Dirt on page Dropouts Loose toner |
| Pressure roller | About 56 | Dirt on the back of page Loose toner |