User's Manual Part 3

RFID Guidelines
RFID is an abbreviation for radio frequency identification. To use the
RFID capabilities of this printer, you will need the appropriate media which
have incorporated into them a transponder.
These RFID transponders have coils built into them. You can write data to
(encode) and read data from the transponder’s memory, and obtain certain
information regarding the status of the RFID subsystem. This printer has an
antenna that encodes the transponder within the media. When a transponder
lines up over the antenna, you are able to communicate to it to get
information and write to the transponder.
Following your Zebra Programming Language (ZPL) commands, the
printer first transfers data to the RFID transponder in the media, then prints
bar code and human-readable data on the media.