Vertical dark bands check
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
Remove, and then reinstall the toner cartridge and imaging unit.
Does the problem remain?
Go to step 4. The problem is
solved.
Step 4
If a bright light enters the right side of the printer, then move the
printer to avoid the bright light.
Note: In cases where the printer cannot be moved or relocated,
add a cover to the fan inlet vent to block the light from entering
the printer, or contact the next level of support.
Does the problem remain?
Go to step 5. The problem is
solved.
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Diagnostics and troubleshooting
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