Actions Yes No
Step 1
Check if the printer is using a genuine and supported Lexmark
toner cartridge.
Note: If the printer is using a third‑party cartridge, then refer the
users to their cartridge supplier.
Is the printer using a genuine and supported toner cartridge?
Go to step 3. Go to step 2.
Step 2
Install a genuine and supported toner cartridge.
Does the problem remain?
Go to step 3. The problem is
solved.
Step 3
Replace the imaging unit.
Does the problem remain?
Go to step 4. The problem is
solved.
Step 4
a Remove the right cover. See “Right cover removal” on
page 420.
b Check connection J15 from the controller board to the HVPS,
and then check all other connections on the HVPS.
Are the connections properly connected?
Go to step 6. Go to step 5.
Step 5
Reconnect the cables.
Does the problem remain?
Go to step 6. The problem is
solved.
Step 6
Replace the HVPS. See
“HVPS removal” on page 421.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
White streaks and voided areas check
Note: Before performing this print quality check, go to the control panel home screen and navigate to
Settings > Troubleshooting > Print Quality Test Pages, and then perform the initial print quality check.
See
“Initial print quality check” on page 44.
4064
Diagnostics and troubleshooting
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