Top Page > Connecting the Machine/System settings > Registering Addresses and Users for Facsimile/Scanner Functions > Fax Destination > Changing a Fax Destination > To change the fax number
Press [Fax Destination] under [Fax Dest.].
Press [Delete All].
Enter a new fax number using the number keys, and then press [OK].
Press [Exit].
Press [OK].