Lexmark MX310 User Manual page 223

Troubleshooting
Action
Step 3
If dark marks appear on prints, then clean the scanner glass and
the ADF glass using a clean, lint-free cloth dampened with water.
Is the scanner glass clean?
Step 4
Send a print job, and then check for print quality problems.
a
From the General Settings menu, adjust the Eco‑Mode settings.
b
From the Copy menu, adjust the Darkness setting.
c
If the print remains faded, then replace the toner cartridge.
Is the print quality satisfactory?
Step 5
Check the placement of the document or photo.
Make sure the document or photo is loaded facedown on the
scanner glass in the upper left corner.
Is the document or photo loaded correctly?
Step 6
Check the copy settings.
From the Copy screen, check if the Content Type and Content
Source settings are correct for the document being scanned.
Are the Content Type and Content Source settings correct for the
document being scanned?
Step 7
Check for patterns on print.
a
From the printer control panel, navigate to:
Copy > Sharpness > select a lower setting
Note: Make sure no scaling is being selected.
b
Resend the copy job.
Do patterns appear on prints?
Step 8
Check for missing or faded text on prints.
a
From the Copy screen, adjust the settings of the following:
•
Sharpness—Increase the sharpness setting.
•
Contrast—Increase the contrast setting.
b
Resend the copy job.
Do prints have missing or faded text?
Yes No
Go to step 4. See
scanner glass" on
page
Go to step 5. See
problems" on
page
Go to step 6. Place the document
or photo facedown
on the scanner glass
in the upper left
corner.
Go to step 7. Change the Content
Type and Content
Source settings to
match the document
being scanned.
Go to step 8. The problem is
solved.
Go to step 9. The problem is
solved.
223
"Cleaning the
154.
"Print quality
203.