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Action
Step 7
Remove the dust or debris.
Does the problem remain?
Step 8
•
If the affected color is cyan, magenta, or yellow, then replace
the developer unit of the affected color.
•
If the affected color is black, then replace the imaging unit.
Does the problem remain?
Step 9
Replace the printhead. See
Does the problem remain?
Step 10
Replace the controller board. See
page
393.
Does the problem remain?
Dark print check
Action
Step 1
a
From the home screen, touch Settings > Print > Quality > Toner
Darkness.
b
Check the toner darkness setting value.
Is the darkness setting too high?
Step 2
Adjust the darkness setting to the proper value.
Does the problem remain?
"Printhead removal" on page
"Controller board removal" on
Diagnostics and troubleshooting
Yes
Go to step 8.
Go to step 9.
Go to step 10.
397.
Contact the next
level of support.
Yes
Go to step 2.
Go to step 3.
56
5028
No
The problem is
solved.
The problem is
solved.
The problem is
solved.
The problem is
solved.
No
Go to step 3.
The problem is
solved.
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