Paper Feed Problems - Lexmark MX421 User Manual

Troubleshooting
To accept any and all of these risks and to proceed with the use of non-genuine supplies or parts in your
printer, from the control panel, press and hold X and # simultaneously for 15 seconds.
If you do not want to accept these risks, then remove the third-party supply or part from your printer and
install a genuine Lexmark supply or part. For more information, see
supplies" on page
If the printer does not print after pressing and holding X and # simultaneously for 15 seconds, then reset
the supply usage counter.
1
From the control panel, navigate to:
Settings > Device > Maintenance > Configuration Menu > Supply Usage And Counters
2
Select the part or supply that you want to reset, and then select Start.
3
Read the warning message, and then select Continue.
4
Press and hold X and # simultaneously for 15 seconds to clear the message.
Note: If you are unable to reset the supply usage counters, then return the item to the place of
purchase.

Paper feed problems

Envelope seals when printing
Action
Step 1
a
Use an envelope that has been stored in a dry environment.
Note: Printing on envelopes with high moisture content can
seal the flaps.
b
Send the print job.
Does the envelope seal when printing?
Step 2
a
Make sure that paper type is set to Envelope.
From the control panel, navigate to:
Settings > Paper > Tray Configuration > Paper Size/Type
b
Send the print job.
Does the envelope seal when printing?
164.
"Using genuine Lexmark parts and
Yes No
Go to step 2. The problem is
solved.
Contact customer The problem is
support. solved.
230