Lexmark 4021 User Manual page 223

Troubleshooting
Action
Step 6
a
Clean the charger and the printhead lens.
b
Resend the print job.
Is the print still too dark?
Step 7
Replace the photoconductor unit, and then resend the print job.
Warning—Potential Damage: Do not expose the
photoconductor unit to direct light for more than 10 minutes.
Extended exposure to light can cause print quality problems.
Is the print still too dark?
Print is too light
Action
Step 1
a
From the Quality menu on the control panel, increase the toner
darkness.
Note: 8 is the factory default setting.
b
Resend the print job.
Is the print still too light?
Step 2
From the control panel, set the paper type, texture, and weight in
the Paper menu to match the paper loaded in the tray.
Is the tray set to the type, texture, and weight of the paper loaded?
Step 3
a
Depending on your operating system, specify the paper type,
texture, and weight from Printing Preferences or from the Print
dialog.
b
Resend the print job.
Is the print still too light?
Yes No
Go to step 7. The problem is
solved.
Contact customer The problem is
support. solved.
Yes No
Go to step 2. The problem is
solved.
Go to step 3. Change the paper
type, texture, and
weight to match the
paper loaded in the
tray.
Go to step 4. The problem is
solved.
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