Lexmark MB2236 Service Manual page 48

Action
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
Measure the distance between the horizontal defects.
Is the distance equal to 75.4 mm or 34.7 mm?
Step 5
Replace the imaging unit.
Does the problem remain?
Step 6
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?
Step 7
Replace the imaging unit.
Does the problem remain?
Step 8
Measure the distance between the horizontal defects.
Is the distance equal to 44.6 mm, 28.3 mm, or 39.3 mm?
Step 9
Replace the toner cartridge.
Does the problem remain?
Diagnostics and troubleshooting
48
Yes No
Go to step 4. The problem is
solved.
Go to step 5. Go to step 6.
Go to step 6. The problem is
solved.
Go to step 7. The problem is
solved.
Go to step 8. The problem is
solved.
Go to step 9. Go to step 10.
Go to step 10. The problem is
solved.
3400-48x