Make the following settings when using the printer in offices that use extensions and require external access codes, such as 0 and 9, to get an outside line.
Select Settings on the printer's control panel.
Select General Settings > Fax Settings > Basic Settings.
Select Line Type, and then select PBX.
When sending a fax to an outside fax number using # (hash) instead of the actual external access code, select the Access Code box to make this to Use.
The #, entered instead of the actual access code, is replaced with the stored access code when dialing. Using # helps avoid connection problems when connecting to an outside line.
You cannot send faxes to recipients in Contacts that have external access codes such as 0 and 9.
If you have registered recipients in Contacts using an external access code such as 0 and 9, set the Access Code to Do Not Use. Otherwise, you must change the code to # in Contacts.
Tap the Access Code input box, enter the external access code used for your phone system, and then tap OK.
Select OK to apply the settings.
The access code is stored in the printer.