Lexmark MX310 User's Guide - Page 221

Toner fog or background shading appears on prints, Step 3, Warning-Potential Damage

Page 221 highlights

Troubleshooting 221 Action Step 3 a Load paper from a fresh package. Note: Paper absorbs moisture due to high humidity. Store paper in its original wrapper until you use it. b Resend the print job. Yes Go to step 4. No The problem is solved. Do streaked vertical lines appear on prints? Step 4 Go to step 5. a Reinstall the imaging unit. 1 Remove 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. 2 Install the imaging unit, and then the cartridge. b Resend the print job. The problem is solved. Do streaked vertical lines appear on prints? Step 5 Replace the imaging unit, and then resend the print job. Do streaked vertical lines appear on prints? Contact customer The problem is solved. support at http://support.lexmar k.com or your service representative. Toner fog or background shading appears on prints ABCDE ABCDE ABCDE Action Step 1 Reinstall the imaging unit. a Remove, and then install the imaging unit. b Resend the print job. Does fog or shading appear on prints? Step 2 Replace the imaging unit, and then resend the print job. Does fog or shading appear on prints? Yes Go to step 2. No The problem is solved. Contact customer The problem is solved. support at http://support.lexmar k.com or your service representative.

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Action
Yes
No
Step 3
a
Load paper from a fresh package.
Note:
Paper absorbs moisture due to high humidity. Store paper in
its original wrapper until you use it.
b
Resend the print job.
Do streaked vertical lines appear on prints?
Go to step 4.
The problem is solved.
Step 4
a
Reinstall the imaging unit.
1
Remove 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.
2
Install the imaging unit, and then the cartridge.
b
Resend the print job.
Do streaked vertical lines appear on prints?
Go to step 5.
The problem is solved.
Step 5
Replace the imaging unit, and then resend the print job.
Do streaked vertical lines appear on prints?
Contact
customer
support
at
http://support.lexmar
k.com
or your service
representative.
The problem is solved.
Toner fog or background shading appears on prints
ABCDE
ABCDE
ABCDE
Action
Yes
No
Step 1
Reinstall the imaging unit.
a
Remove, and then install the imaging unit.
b
Resend the print job.
Does fog or shading appear on prints?
Go to step 2.
The problem is solved.
Step 2
Replace the imaging unit, and then resend the print job.
Does fog or shading appear on prints?
Contact
customer
support
at
http://support.lexmar
k.com
or your service
representative.
The problem is solved.
Troubleshooting
221