Lexmark MX721 User Manual page 272

Troubleshooting
Scanning takes too long or freezes the computer
Action
Close all applications that are interfering with the scan.
Does scanning take too long or freeze the computer?
Scanner does not respond
Action
Step 1
a
Check if the power cord is connected properly to the printer
and the electrical outlet.
CAUTION—POTENTIAL INJURY: To avoid the risk of fire
or electrical shock, connect the power cord to an
appropriately rated and properly grounded electrical outlet
that is near the product and easily accessible.
b
Copy or scan the document.
Is the scanner responding?
Step 2
a
Check if the printer is turned on.
b
Resolve any error messages that appear on the display.
c
Copy or scan the document.
Is the scanner responding?
Step 3
a
Turn off the printer, wait for about 10 seconds, and then turn the
printer on.
b
Copy or scan the document.
Is the scanner responding?
Adjusting scanner registration
1
From the home screen, touch Settings > Device > Maintenance > Configuration Menu > Scanner
Configuration > Scanner Manual Registration.
2
In the Print Quick Test menu, touch Start.
3
Place the Print Quick Test page on the scanner glass, and then touch Flatbed Registration.
4
In the Copy Quick Test menu, touch Start.
Yes No
Contact customer The problem is
support. solved.
Yes No
The problem is Go to step 2.
solved.
The problem is Go to step 3.
solved.
The problem is Contact
solved. support.
272
customer