Action Yes No
Step 6
a Clean the printhead lens.
b Reseat the two printhead cables at both ends.
c Perform a print test.
Does the problem remain?
Go to step 7. The problem is
solved.
Step 7
a Make sure that the printhead cables are properly connected.
b Check the printhead for proper installation and damage.
Is the printhead properly installed and free of damage?
Go to step 9. Go to step 8.
Step 8
Replace the printhead. See
“Printhead removal” on page 251.
Does the problem remain?
Go to step 9. The problem is
solved.
Step 9
a Check the controller board for proper installation and damage.
b Reseat all the cables on the controller board.
Is the controller board properly installed and free of damage?
Contact the next
level of support.
Go to step 10.
Step 10
Replace the controller board. See
“Controller board removal” on
page 228.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
Toner rubs o check
3400-48x
Diagnostics and troubleshooting
84
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