Dymo Printer Proprietary Labels have RFID chips. This means you are required to purchase Dymo brand labels to run on these news Dymo printers.
If you are using custom labels, avoid purchasing the Dymo 550, Dymo 550 Turbo, and Dymo 5XL printers. These printers ONLY use proprietary Dymo labels.
These labels have an RFID chip to sense legitimate Dymo labels. If you have custom printing needs or just want to use generic labels, these are not the label makers you want.
Recommendation would be to purchase a Dymo 4XL, or if you can find one, Dymo 450 printer. These printers are unlocked.
Beyond Dymo, there are other label maker manufacturers. Contact us for more information.