HP 4000n HP LaserJet 4000 Printer Series - HP LaserJet 4000, 4000 T, 4000 N, a - Page 94

Light Print or Fade Toner Specks Dropouts Lines Gray Background Toner Smear Loose Toner Repeating Defects Misformed Characters Page Skew Curl or Wave Wrinkles or Creases 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 in the software and in the control panel.   1  1 1   4. Turn over the stack of paper in the tray. Also try rotating the paper 180°. 1    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 fit properly against the paper stack. 8. Print to a different output bin.    9. Adjust the toner density setting.   10. Change the fuser mode setting to High or choose rough paper type from the printer driver.  11. Redistribute the toner in the toner cartridge.      12. Install a new HP toner cartridge. (See instructions with the toner cartridge.)   13. To alternate small and standard paper, from the Configuration Menu set 5/#..2#2'452''&5.19. 14. After trying all the steps suggested above, contact an HP-authorized service or support provider. (See the HP Support pages at the front of this user's guide.) 1.Paper might be too smooth. EN Chapter 4: Problem Solving 83