7-66 Troubleshooting
EN
Poor contact to the
Engine Controller
Board.
1. Clean the contacts if they are dirty. If the problem
remains after cleaning, or if parts are damaged or
deformed, replace them.
2. Replace the Engine Controller Board if necessary.
Defective Laser
Scanner.
Replace the Laser Scanner.
Defective High
Voltage Power Supply.
Replace the High Voltage Power Supply PCA.
See also “Faded Print/Bubbles” on page 7-61.
Table 7-24. Loose Toner
Possible Cause Action
Dirt in the printer. 1. Print a few more pages to see if the problem
corrects itself.
2. Clean the inside of the printer (page 4-2) or use
the printer’s cleaning page (page 4-4).
Toner Cartridge is
defective.
Replace the Toner Cartridge.
Paper might be too
smooth.
Check the paper (or other print media) type and
quality.
Wrong Fuser setting
for paper type.
From the Paper Handling Menu on the Control
Panel, change the Fuser Mode setting or choose
another paper type from the printer driver.
Defective Fuser. Replace the Fuser.
Table 7-23. Light Print, Dark Print, or Fade (continued)
Possible Cause Action
