RFID questions answered
RFID label printer FAQs for UK buyers and project teams
Straight answers to the practical questions that arise when choosing RFID printers, smart labels, encoding data and verification controls.
Reviewed by the Oxford Traceability application team · Updated 25 August 2026

Fast orientation
Start with the product, tag technology and read point
Most expensive RFID printing mistakes begin with selecting hardware before defining the item, label, electronic data and downstream reader. Use the answers below to create a better brief, then validate it with representative samples.
Frequently asked questions
Direct answers for your RFID project
Need an answer about a specific product, label or data workflow? Send us the details.
sales@oxfordtraceability.co.ukWhat is an RFID label printer?
An RFID label printer is a thermal printer with an integrated encoder. It prints human-readable information and barcodes, writes data to the RFID inlay and can verify that the electronic identity was created successfully.
What is the difference between an RFID printer and a normal label printer?
A normal label printer produces visible print only. An RFID printer-encoder also communicates with the tag inside a smart label. The encoder must support the tag technology and the media must place the inlay where the printer can program it.
What is the difference between UHF/RAIN RFID and NFC?
UHF/RAIN RFID is commonly used for fast identification of one or many items without line of sight. NFC is a short-range HF technology designed for deliberate taps with compatible phones or readers. They require different tags, readers and often different encoders.
Should I buy a desktop or industrial RFID printer?
Choose according to sustained workload, operating hours, roll capacity, environment and integration. Desktop models suit lighter or distributed work. Industrial printers suit production duty and larger rolls. Confirm label compatibility and test the application before committing.
Is 203 dpi or 300 dpi better for RFID labels?
203 dpi is often enough for larger text and barcodes, while 300 dpi is useful for smaller labels and finer symbols. Resolution affects visible print, not the RFID read range. The label material, ribbon and barcode size also affect print quality.
Do RFID labels use direct thermal or thermal transfer printing?
Both constructions exist. Direct thermal labels need no ribbon but are more sensitive to heat, light and abrasion. Thermal transfer uses a matched ribbon and is generally chosen when the printed image must last longer or resist harsher handling.
Can any RFID label work in any RFID printer?
No. Frequency, protocol, label dimensions, pitch, liner, inlay position, thickness, roll size and encoder capability all matter. The exact media should be approved and calibrated on the selected printer.
Why is my RFID printer producing VOID labels?
A VOID label normally means the tag could not be encoded or verified. Check RFID calibration, supported tag type, inlay position, data format, read/write settings and media condition. Repeated failures need investigation rather than simply discarding labels.
Can RFID labels work on metal?
Standard inlays often perform poorly directly on metal because the conductive surface changes antenna behaviour. Use a purpose-designed on-metal label or tag, then test it on the real asset in the intended orientation and read zone.
Can RFID labels arrive pre-printed and pre-encoded?
Yes, projects can use blank, pre-printed, pre-encoded or fully printed-and-encoded labels. The best choice depends on when variable data becomes available, who controls serial numbers and what verification evidence is required.
What data is stored on a RAIN RFID label?
Many RAIN RFID workflows store a unique identifier in EPC memory and may use TID or user memory for other purposes. The exact structure should follow the organisation's identification rules and relevant standards rather than being improvised at the printer.
How much does an RFID label printing system cost?
Total cost depends on printer class, encoder technology, resolution, connectivity, media, ribbons, label software, integration, testing, training and ongoing label volume. A useful quotation starts with the product, data, throughput and read environment rather than hardware alone.
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