Printronix certified RFID Smart Labels combine the technology of thermal-transfer, pressure-sensitive labels with RFID tags. We have gone to great lengths to ensure that our RFID Smart Labels with their many different sizes and antenna configurations provide the finest RF performance possible when used with our RFID printers. Under software control, the RFID printer writes data to the RFID tag, then validates that the EPC information can be read reliably. After completing this validation process, the RFID printer prints the human-readable and bar code data. If for any reason the RFID encoding process cannot be validated, the RFID label is printed with an overstrike pattern to prevent it from entering your supply chain.