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4079-00X
Print Quality Service Check
Symptom Explanation
Print quality problems,
missing dots, colors, or ink
smearing. Possible ink
supply problem.
You are in this service check because the print sample nozzle check
indicates some nozzles may be blocked. Perform a Normal Clean-
ing, see
"Printhead Cleaning Procedures" on page
the print quality by running the
print quality is not satisfactory, perform a Long Cleaning and check
the print quality again.
Be sure the correct paper is being used (coated), and the printer is
in the correct print mode. See
FRU
1
Ink Cartridge
2
Platen
Conditions That Could Cause This
Symptom
• Clogged ink lines
• Printhead
• Cartridge present sensor
"Print Sample" on page
"Printing Mode" on page
Action
Remove the ink cartridge you think has a problem,
cover the sensor end with a cloth, and gently shake
the cartridge. If you cannot hear or feel ink moving,
replace the cartridge.
Be sure the platen is not dirty or ink-stained.
Check the printhead gap. See
ment" on page
4-2.
3-4, then check
3-3. If the
3-4.
"Head Gap Adjust-
Diagnostic Information
2-43
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