Using Web Config or other tools, you can back up and import contacts.
For Web Config
You can back up contacts by exporting the printer settings that include contacts. The exported file cannot be edited because it is exported as a binary file.
When importing the printer settings to the printer, contacts are overwritten.
For Epson Device Admin
Only contacts can be exported from the device’s property screen.
If you do not export the security-related items, you can edit the exported contacts and import them because this can be saved as a SYLK file or csv file.
You can import your contacts to multiple printers in bulk. This is useful when you are replacing your printers and want to transfer the contacts from the old printers to the new printers.
For more information, see the documentation or help of Epson Device Admin