RFID Printing Overview

What Is RFID Printing

RFID printing combines two functions within a single device:

• Encoding data to an RFID chip embedded in a tag

• Printing visual information on the surface of the same tag

These functions occur as part of a coordinated print-and-encode process.

RFID Tag Encoding

RFID tags contain a small chip and antenna that store and transmit data wirelessly.

During the encoding process, the RFID printer writes data to the chip embedded in the tag. This data is stored electronically and can be read or updated later using compatible RFID readers.

Encoded data commonly includes:

• Unique identifiers

• Serial numbers

• Product or SKU references

• Other application-defined values

The encoded data is independent of any printed content on the tag.

Printing on RFID Tags

In addition to encoding, RFID printers print visual information on the tag surface.

Printed content may include:

• Human-readable text

• Barcodes

• QR codes

• Other printed identifiers

Printing is performed using either thermal transfer ribbon or direct thermal media, depending on the tag and printer configuration.

Printed content and encoded data are typically linked by the application generating the print job but are processed separately by the printer.

How RFID Printers Encode Tags

RFID printers contain an internal RFID antenna positioned along the media path.

During encoding:

• The printer transmits radio frequency energy through the antenna

• The RFID chip receives the signal and stores the transmitted data

The supported RFID frequency band (LF, HF, or UHF) depends on the printer model, encoder hardware, and configuration.

Differences from Non-RFID Printers

Non-RFID printers perform surface printing only and do not interact with RFID chips.

RFID printers differ in that they:

• Encode data to RFID chips during printing

• Coordinate print positioning with RFID antenna alignment

Non-RFID printers do not support RFID encoding operations.