Lexmark 24T7406, MX711DTHE Toner fog or background shading appears on prints, Troubleshooting 321

Troubleshooting		321
Action	Yes	No
Step 3	Go to step 4.	The problem is solved.

aLoad paper from a fresh package.

Note: Paper absorbs moisture due to high humidity. Store paper in its original wrapper until you use it.

bResend the print job.

Do streaked vertical lines appear on prints?

Step 4 Go to step 5. The problem is solved.

aReinstall the imaging unit.

1Remove the toner cartridge, and then 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.

2Install the imaging unit, and then the cartridge.

bResend the print job.

Do streaked vertical lines appear on prints?
Step 5	Contact customer	The problem is solved.
Replace the imaging unit, and then resend the print job.	support at
	http://support.lexmar
Do streaked vertical lines appear on prints?	k.com or your service
	representative.

Toner fog or background shading appears on prints

ABCDE

ABCDE

ABCDE

Action	Yes	No
Step 1	Go to step 2.	The problem is solved.
Reinstall the imaging unit.

aRemove, and then install the imaging unit.

bResend the print job.

Does fog or shading appear on prints?
Step 2	Contact customer	The problem is solved.
Replace the imaging unit, and then resend the print job.	support at
	http://support.lexmar
Does fog or shading appear on prints?	k.com or your service
	representative.