Solving print quality problems
67
Troubleshooting
Solving print quality problems
You can solve many print quality problems by replacing a supply or maintenance item that has reached the end of its
intended life. Check the operator panel for a message about a printer consumable. See Determining the status of
supplies for information about other ways to identify consumables that need to be replaced.
Use the following table to find solutions to print quality problems.
Symptom Cause Solution
Repeating defects Either the toner cartridges, the
photodeveloper cartridge, 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
35 mm (1.38 in.) for the toner cartridges.
Marks occur down the page repeatedly in all
colors:
Replace the item if the defects occur every:
• 35 mm (1.38 in.) or 95 mm (3.74 in.) for
the photodeveloper cartridge
• 95 mm (3.74 in.) or 128 mm (5.04 in.) for
the fuser
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.
Turn the printer off. Remove and reinstall the
photodeveloper cartridge. Turn the printer on.
White or colored line Either the toner cartridges, the
fuser, or the photodeveloper
cartridge are defective, or toner
has accumulated in front of the
printhead.
Replace the color toner cartridge causing the line.
If you still have the problem, replace the fuser and
the photodeveloper cartridge.
Clean any spilled toner you see in the printer
housing near the printhead using a soft, clean lint-
free cloth.
See Cleaning the printhead lens on page 52.
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