Actions Yes No
Step 3
Enter the Diagnostics menu, and then navigate to:
PRINTER SETUP > Printed Page Count
Does the page count reach 300K or 600K?
Go to step 4. Go to step 5.
Step 4
Check the following for damage:
• Developer unit
• Transfer belt
• Transfer roller
Replace the parts if necessary. See
“Transfer roller removal” on page
284.
Does the problem remain?
Go to step 5. The problem is solved.
Step 5
a Make sure that the fuser and its cable are properly connected.
b Check the fuser for damage, and replace if necessary. See “Fuser
removal” on page 279.
Does the problem remain?
Contact the next level
of support.
The problem is solved.
Fixing image quality issues
Initial image quality check
Before troubleshooting image quality problems, perform the following:
• Perform a print test to ensure that the defect is not due to printer problem.
• Make sure that the document is placed correctly.
• Make sure that the image data is properly transmitted.
• Make sure that the scanner or ADF is free of debris or dust.
• Make sure all ADF and scanner cables are properly installed.
• Make sure that the scanner and ADF are properly aligned. For more information, see “ADF height adjustment” on
page 258.
• Make sure that the printer is placed on a level surface.
• Reset the scanner quality adjustment to the default values.
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Diagnostic information
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