Lexmark MB2236 User Manual page 148

Troubleshoot a problem
Action
Step 2
a
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.
b
Print the document.
Does gray background appear on prints?
Step 3
a
Depending on your operating system, specify the paper type
from the Printing Preferences or Print dialog.
Notes:
•
Make sure that the setting matches the paper loaded.
•
You can also change the setting from the printer control
panel. Navigate to Settings > Paper > Tray Configuration
> Paper Size/Type.
b
Print the document.
Does gray background appear on prints?
Step 4
a
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.
b
Print the document.
Does gray background appear on prints?
Step 5
a
Update the printer firmware. For more information, see
"Updating firmware" on page
b
Print the document.
Does gray background appear on prints?
Step 6
a
Replace the imaging unit.
b
Print the document.
Does gray background appear on prints?
32.
Yes No
Go to step 3. The problem is
solved.
Go to step 4. The problem is
solved.
Go to step 5. The problem is
solved.
Go to step 6. The problem is
solved.
Contact customer The problem is
support. solved.
148