What if I don't have the IJ Scan Utility? For the PIXMA MP230, MX392, MX450 Series, MX722 and MX922 , the IJ Scan Utility is included with the scanner driver.
Identify the issue Note: These steps may also help if your fax machine is connected to a Voice over Internet Protocol (VoIP) phone line. Please contact your phone service provider if you're not sure if you subscribe to this type of phone service.
Verify the fax recipient There are two printer functions you can set to help prevent your printer / fax from sending faxes to the wrong recipient. Fax number re-entry