Lexmark ST9822 User Manual page 209

Troubleshooting
Action
Step 2
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 on the printer control
panel.
b
Print the document.
Do vertical white lines appear on prints?
Repeating defects
Note: Before solving the problem, print the Print Quality Test Pages. From the control panel, navigate to
Settings > Troubleshooting > Print Quality Test Pages.
Action
Step 1
Using the Print Quality Test Pages, check if the distance
between the repeating defects is equal to any of the following:
•
97 mm (3.78 in.)
•
47 mm (1.85 in.)
•
38 mm (1.5 in.)
Does the distance between the repeating defects match any of the
measurements?
Step 2
a
Replace the imaging unit.
b
Print the document.
Do the repeating defects appear?
Yes No
Contact customer The problem is
support. solved.
Yes No
Go to step 2. Take note of the
distance, and then
contact
support.
Contact customer The problem is
support. solved.
208
customer