Hello,
Does it still print ok though? If it doesn't print, that's something we want to work further on.
But if it prints, this is completely normal. Epson doesn't necessarily display the model name, but rather the hardware ID name. For example, my ET-2850 is display as EPSON31BC12. This is so that if you have two same model printers set up, there's unique ID for each.
If you want to rename it, go to Settings > Bluetooth & Devices > Printer and scanner. Click onto your printer, then expand Additional printer settings, click on Rename.