Lexmark 4021 User Manual page 231

Troubleshooting
Toner fog or background shading appears on prints
ABCDE
ABCDE
ABCDE
Action
Step 1
a
Clean the charger and the printhead lens.
b
Resend the print job.
Did the toner fog or background shading disappear from the
prints?
Step 2
a
Reinstall the photoconductor unit.
Warning—Potential Damage: Do not expose the
photoconductor unit to direct light for more than 10 minutes.
Extended exposure to light may cause print quality problems.
b
Resend the print job.
Did the toner fog or background shading disappear from the
prints?
Step 3
Replace the photoconductor unit, and then resend the print job.
Did the toner fog or background shading disappear from the
prints?
Toner rubs off
Leading edge
ABC
DEF
Trailing edge
Yes No
Go to step 2. The problem is
solved.
The problem is Go to step 3.
solved.
The problem is Contact
solved. support.
231
customer