Lexmark MB2236 Service Manual page 59

Action
Step 10
a
Check the imaging unit contact spring for damage and
contamination.
b
Make sure that the imaging unit contact spring is in proper
contact with the HVPS.
Is the imaging unit contact spring properly installed, and free of
damage and contamination?
Step 11
a
Make sure that the transfer roller is properly installed and free
of damage and contamination.
b
Make sure that the HVPS contact spring is properly connected
to the transfer roller.
c
Make sure that the transfer roller spring is properly installed.
d
Enter the Diagnostics menu, and then select Advanced Print
Quality Samples.
Does the problem remain?
Step 12
a
Reseat the transfer roller.
b
Enter the Diagnostics menu, and then select Advanced Print
Quality Samples.
Does the problem remain?
Step 13
Replace the transfer roller. See
page 242.
Does the problem remain?
Step 14
a
Clean the printhead lens.
b
Reseat the two printhead cables at both ends.
c
Perform a print test.
Does the problem remain?
Step 15
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?
Step 16
Replace the printhead. See
Does the problem remain?
"Transfer roller removal" on
"Printhead removal" on page
Diagnostics and troubleshooting
59
Yes
Contact the next
level of support.
Go to step 12.
Go to step 13.
Go to step 14.
Go to step 15.
Go to step 17.
Go to step 17.
251.
3400-48x
No
The problem is
solved.
The problem is
solved.
The problem is
solved.
The problem is
solved.
The problem is
solved.
Go to step 16.
The problem is
solved.