Cannot Save Received Faxes to a Memory Device

Select Settings > General Settings > Fax Settings > Receive Settings, and then enable Save to Memory Device in each menu.

Connect a memory device, in which you have created a folder to save faxes, to the printer. Once the faxes are saved in the device, they are deleted from the printer's memory.

Delete unnecessary data from the device to increase the amount of free space. Or, connect another device that has enough free space.

Check if the device is write protected.