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Solving print quality problems
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Troubleshooting
Use the following table to find solutions to print quality problems.
Symptom Cause Solution
Repeating defects Either the toner cartridges, the
photoconductor units, or the fuser
are defective.
Marks occur repeatedly only in one color and
multiple times on a page:
Replace the item if the defects occur every:
33.5 mm (1.32 in.) or 35.7 mm (1.41 in.) for the toner
cartridges
28.3 mm (1.11 in.) or 72.4 mm (2.85 in.) for the
photoconductor unit
Print the Print Quality Test Pages and the Print defects
guide to look for defects. See Printing the Print
Quality Test Pages for more information. Print the
Print defects guide which is available from the Help
menu on the printer operator panel.
Marks occur down the page repeatedly in all
colors:
Replace the fuser if the defects occur every 116 mm
(4.56 in.).
Color misregistration Color has shifted outside of the
appropriate area (top to bottom or
left to right) or has been
superimposed over another color
area.
1 Turn the printer off.
2 Remove and reinstall the photoconductor units.
3 Turn the printer on.
4 Select Color Adjust from the Quality Menu
in Settings.
If the problem still exists, see Aligning the toner
cartridges for color registration for more
information.
White or colored line Either the toner cartridges, the
photoconductor units, or the
transfer belt are defective, or toner
has accumulated in front of the
printhead or on the printhead lens.
Clean any spilled toner in the printer housing near the
printhead using a soft, clean, lint-free cloth.
Clean the printhead lenses. See Cleaning the
printhead lenses.
Replace the color toner cartridge causing the line.
If the problem still exists, replace the photoconductor
units.
If the problem continues, replace the transfer belt.
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