Solutions
If an external phone device is connected to the printer and is sharing a phone line with the printer, select More > Settings > Fax Settings > Basic Settings, and then set Receive Mode to Auto.
Solutions
When you have selected settings to save received faxes to a computer, turn on the computer. The received fax is deleted once it has been saved to the computer.
Solutions
Register the sender's fax number to contact list. Or disable Caller not in Contacts in More > Settings > Fax Settings > Basic Settings > Rejection Fax > Rejection Fax. Faxes sent from numbers that have not been registered to this list are blocked.
Solutions
Make sure that the sender's number can be deleted from the Rejection Number List before deleting it. Delete it from More > Settings > Fax Settings > Basic Settings > Rejection Fax > Edit Blocked Number list. Or disable the Rejection Number List in More > Settings > Fax Settings > Basic Settings > Rejection Fax > Rejection Fax. Faxes sent from numbers that have not been registered to this list are blocked when this setting is enabled.