Lexmark MX826 User Manual page 261

Troubleshooting
Action
Step 3
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. Navigate to Settings > Paper > Tray Configuration
> Paper Size/Type.
b
Print the document.
Do vertical dark lines or streaks appear on prints?
Step 4
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
Print the document.
Do vertical dark lines or streaks appear on prints?
Step 5
a
Remove, and then insert the imaging kit.
Warning—Potential Damage: Do not expose the imaging kit
to direct light. Extended exposure to light can cause print
quality problems.
Warning—Potential Damage: Do not touch the
photoconductor drum under the imaging kit. Doing so may
affect the quality of future print jobs.
b
Print the document.
Do vertical dark lines or streaks appear on prints?
Vertical dark lines or streaks
Note: Before solving the problem, print the Print Quality Test Pages. From the control panel, navigate to
Settings > Troubleshooting > Print Quality Test Pages. For non‑touch‑screen printer models, press
navigate through the settings.
Yes No
Go to step 4. The problem is
solved.
Go to step 5. The problem is
solved.
Contact customer The problem is
support. solved.
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