Lexmark MX822 User Manual page 218

Troubleshooting
Action
Step 4
a
Remove 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
Remove any packing material that is stuck on the imaging unit.
Note: Make sure to remove any obstruction between the
charge roller and photoconductor drum.
c
Insert the imaging unit.
d
Print the document.
Does gray background appear on prints?
Step 5
a
Replace the imaging unit.
b
Print the document.
Does gray background appear on prints?
Yes No
Go to step 5. The problem is
solved.
Contact customer The problem is
support. solved.
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