HP 8150 HP LaserJet 8150 Series Printer -Ready Reference Guide - Page 29

Light Print or Fade Specks Dropouts Lines Gray Background Toner Smear Loose Toner Repeating Defects Misformed Characters Page Skew Curl or Wave Wrinkles or Creases Troubleshooting Steps Troubleshooting Steps (Follow the steps in the order they are listed.)     1. Print a few more pages to see if the problem will correct itself.   2. Clean the inside of the printer or use the printer's cleaning page.  3. Make sure EconoMode is off.   4. Turn over the stack of paper in the tray. Also try rotating the paper 180°.       5. Check the paper (or other print media) type and quality.    6. Check the printer's environment.   7. Make sure paper is loaded correctly and that the guides are not too tight or too loose against the paper stack. EN Correcting Output Quality Problems - 25