Lexmark MB2236 Service Manual page 61

Action
Step 2
Make sure to remove the packing material on the toner cartridge
and imaging unit.
Does the problem remain?
Step 3
a
Clear the paper path of debris and contamination.
b
Remove, and then insert the imaging unit and toner cartridge.
Note: Shake the toner cartridge and imaging unit before
inserting them.
c
Perform a POR.
d
Enter the Diagnostics menu, and then select Advanced Print
Quality Samples.
Does the problem remain?
Step 4
a
Clean the printhead lens.
b
Reseat the two printhead cables at both ends.
c
Perform a print test.
Does the problem remain?
Step 5
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 6
Replace the printhead. See
Does the problem remain?
Step 7
a
Make sure that the imaging unit is properly installed and free
of damage.
b
Make sure that the smart chip contacts are free of corrosion
and contamination.
c
Make sure that the photoconductor roller surface is free of
damage.
d
Make sure that the imaging unit HVPS contacts are free of
corrosion and contamination.
e
Enter the Diagnostics menu, and then select Advanced Print
Quality Samples.
Does the problem remain?
"Printhead removal" on page
Diagnostics and troubleshooting
61
Yes
Go to step 3.
Go to step 4.
Go to step 5.
Go to step 7.
Go to step 7.
251.
Go to step 8.
3400-48x
No
The problem is
solved.
The problem is
solved.
The problem is
solved.
Go to step 6.
The problem is
solved.
The problem is
solved.