Hi Smith,
I don't have an RFID printer here at the moment.
I used one from the Printronix brand as far as I know.
Graphic content is printed on these RFID labels and the RFID chip already integrated in the label is written to.
I can't tell you off the top of my head what kind of technology is used internally.
I suspect the proprietary driver integrates this RFID data into the document.
As far as I know, Printronix had its own language for this. AFAIK PGL (Printronix Graphics Language)
Best regards
Robin Lindner
Chief Executive Officer
Lindner IT UG (haftungsbeschränkt)