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 any packing material left on the imaging unit, including
pieces of tape on the side of the unit and the red separator plastic.
Note: You may need a pair of pliers to remove a piece of broken
plastic inside the imaging unit.
Does the problem remain?
Go to step 4. The problem is
solved.
Step 4
Replace the imaging unit.
Does the problem remain?
Go to step 5. The problem is
solved.
4064
Diagnostics and troubleshooting
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