Table 7-32. Repetitive Defects (continued) Possible Cause Recommended Action 3. Rollers are dirty. Any dirty roller in the paper path may result in a repetitive print defect. Examine and clean the rollers in the paper path. See “Cleaning the Printer and Accessories” on page 82. 4. Fusing Assembly is dirty or defective. Clean the Fusing Assembly using alcohol. If the problem persists, replace the Fusing Assembly. See “Fusing Assembly” on page 198 for instructions. 5. Gears are worn, causing slippage or jumping. Inspect the gears driving the toner cartridge and the Fuser. Replace the Main Drive Assembly if necessary. See “Main Gear Assembly” on page 202 for instructions. 6.
Paper does not meet specifications. The surface of the paper may be too coarse, causing repeated marks. Try a different media or paper lot (see HP LaserJet Printer Family Paper Specifications Guide). Table 7-33. Line at Edge of Paper Possible Cause Recommended Action Toner cartridge is defective. The photosensitive drum is wearing out. The line will grow wider, with cross- hatching. Shaking the cartridge does not relieve the problem. Replace the toner cartridge. 478 Chapter 7 Troubleshooting C4085-91087