How RFID Printers Prevent Tampering When Writing Chip Information

How does the RFID printer protect the chip data from being tampered with?

Accurate power control and sensor alignment
When writing information, the printer will first adjust the power. Just like speaking too softly or too loudly, the signal must be just right so that the chip can receive accurate information. In addition, there is a sensor in the printer that can automatically align the position of the label to ensure that it will not be written off or missed.

Label calibration and data verification
Each RFID label has a different size and chip model. For example, the common Alien H9, Ucode 8 or 9 chips have different memory capacities. The printer needs to be calibrated before use to ensure correct recognition.

After writing the information, you can also use an RFID handheld device to scan the label again to compare the printed content with the data in the chip to prevent errors in the middle.

Data encryption and access control

When writing data, the system will use an encryption algorithm (such as AES, DES or RSA), so that even if someone eavesdrops, they cannot understand it. In addition to access control, only authorized devices can read and write these chips, and ordinary people or stolen devices cannot change the content at will.

Label materials and specifications

The RFID tags we use are usually 100×33 mm in size (can also be customized), with an operating frequency between 860 and 960MHz, in line with the ISO/IEC 18000-6C protocol standard. The material can be coated paper, PVC or PET, with waterproof, windproof, moisture-proof and other functions, suitable for various application environments.

Conclusion

The RFID printer is like a teacher who can both “write” and “check homework”. When writing chip information, it uses multiple means such as power control, sensor calibration, data verification and encryption protection to ensure that each tag information is accurate, secure and not tampered with. This is why more and more companies and factories choose to use RFID technology to manage products and information.