Lexmark MX721 User Manual page 245

Troubleshooting
Action
Step 2
a
Check if the printer is on.
b
Resolve any error messages that appear on the display.
c
Print the document.
Is the document printed?
Step 3
a
Check if the ports are working and if the cables are securely
connected to the computer and the printer.
For more information, see the setup documentation that came
with the printer.
b
Print the document.
Is the document printed?
Step 4
a
Turn off the printer, wait for about 10 seconds, and then turn on
the printer.
b
Print the document.
Is the document printed?
Step 5
a
Remove, and then reinstall the print driver.
b
Print the document.
Is the document printed?
Slow printing
Action
Step 1
Make sure that the printer cable is securely connected to the
printer and to the computer, print server, option, or other network
device.
Is the printer printing slow?
Step 2
a
Make sure that the printer is not in Quiet Mode.
From the home screen, touch Settings > Device > Maintenance
> Config Menu > Device Operations > Quiet Mode.
b
Print the document.
Is the printer printing slow?
Yes No
The problem is Go to step 3.
solved.
The problem is Go to step 4.
solved.
The problem is Go to step 5.
solved.
The problem is Contact
solved. support.
Yes No
Go to step 2. The problem is
solved.
Go to step 3. The problem is
solved.
245
customer