Lexmark CX421 - Can Receive but Not Send Faxes; Can Send but Not Receive Faxes

Action Yes No
Step 7
Scan the original document one page at a time.
a Dial the fax number.
b Scan the document.
Can you send or receive a fax?
The problem is
solved.
Contact
customer
support.
Can receive but not send faxes
Action Yes No
Step 1
Load the original document properly into the ADF tray or on the
scanner glass.
Can you send faxes?
The problem is
solved.
Go to step 2.
Step 2
Set up the shortcut number properly.
• Check if the shortcut number is set for the telephone number
that you want to dial.
• Dial the telephone number manually.
Can you send faxes?
The problem is
solved.
Contact
customer
support.
Can send but not receive faxes
Action Yes No
Step 1
Make sure that the paper source is not empty.
Can you receive faxes?
The problem is
solved.
Go to step 2.
Step 2
Check the ring count delay settings.
From the control panel, navigate to:
Settings > Fax > Analog Fax Setup > Fax Receive Settings >
Rings to Answer
For non-touch-screen printer models, press
to navigate
through the settings.
Can you receive faxes?
The problem is
solved.
Go to step 3.
Troubleshooting 227