Solid black pages
Note: Before solving the problem, print the Print Quality Test Pages. From the control panel, navigate to Settings > Troubleshooting > Print Quality Test Pages. For non‑touch‑screen printer models, press 
to navigate through the settings.
| Action | Yes | No |
|---|
Step 1  Check if the printer is using a genuine and supported Lexmark toner cartridge. Note: If the toner cartridge is not supported, then install a supported one. Print the document.
Is the printer printing solid black pages? | Go to step 2. | The problem is solved. |
Step 2 Remove, and then insert the imaging unit. Warning—Potential Damage: Do not expose the imaging unit to direct light for more than 10 minutes. Extended exposure to light may cause print quality problems. Warning—Potential Damage: Do not touch the photoconductor drum under the imaging unit. Doing so may affect the quality of future print jobs. Print the document.
Is the printer printing solid black pages? | Go to step 3. | The problem is solved. |
Step 3 Check the imaging unit for signs of damage. Note: Make sure that the photoconductor drum contact is not bent or out of place. Is the imaging unit free from damage? | Contact customer support. | Go to step 4. |
Step 4 Replace the imaging unit. Print the document.
Is the printer printing solid black pages? | Contact customer support. | The problem is solved. |