You can make saving settings to receive faxes to the inbox and an external memory device regardless of the sender or time. Saving a fax to the inbox allows you to confirm the contents of the received fax by viewing the fax on the printer's LCD screen before the printer prints the fax.
To make settings to save received faxes to a computer using the PC-FAX feature, see Feature: PC-FAX Send/Receive (Windows/Mac OS).
As well as using the printer's control panel, you can use Web Config to make saving settings to receive faxes. Select the Fax tab > Save/Forward Settings > Unconditional Save/Forward, and then make the saving destination settings in Fax Output.
You can also print and/or forward the received faxes at the same time. Make the settings on the Fax Output screen mentioned above.