Action Yes No
Step 9
a Upgrade the firmware.
Note: Contact your next level of support for the correct firmware
level to use.
b Reset the printer.
c Send the printer a print job.
Does the error remain?
Go to step 31. Go to step 10.
Step 10
Is the printer an MFP?
Go to step 11. Go to step 13.
Step 11
Run a copy job.
Does the error remain?
Go to step 31. Go to step 12.
Step 12
Run a scan to PC job.
Does the error remain?
Go to step 31. Go to step 13.
Step 13
Is there optional memory installed?
Go to step 14. Go to step 16.
Step 14
a Reinstall the memory.
b Send a print job to the printer.
Does the error remain?
Go to step 15. Go to step 16.
Step 15
a Install a Lexmark‑recommended memory option.
b Send a print job to the printer.
Does the error remain?
Go to step 31. The problem is solved.
Step 16
Is there a modem installed?
Go to step 17. Go to step 21.
Step 17
a Reinstall the modem.
b Reset the printer.
Does the error remain?
Go to step 18. Go to step 20.
7421
Diagnostic information
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