RFID printers: print and encode in a single pass.

What an RFID printer is

Two devices in one housing

Technically an RFID printer holds two systems. The first is an entirely ordinary label printer with a thermal printhead, a platen roller and a label path. The second is a UHF reader with a small, tightly focused encoder antenna sitting directly in the paper path. The printer pulls the label to that antenna, writes the data into the chip, moves the label on under the printhead and prints it. From the outside it looks like a single operation.

Why that makes sense in a shop

You can also order RFID labels ready printed and encoded. That is convenient but inflexible: every relabelling, every markdown, every price change and every item without a supplier label then needs a fresh order with a lead time. With a printer of your own, labels come into being when the goods arrive. For a new collection that is the difference between two weeks of waiting and an afternoon of work.

What the printer is not

An RFID printer replaces neither a handheld nor stock control software. It produces the labels; the reading and the counting happen later with a handheld reader. Nor does it check whether a number is right in business terms — it writes what the connected system gives it. The logic of which number belongs to which article sits in the software.

Direct thermal against thermal transfer

Direct thermal

In direct thermal printing the printhead heats a chemically coated paper that turns black where the heat lands. There is no consumable other than the label itself. That saves cost, handling and storage space. The drawback lies in the same chemistry: what turns dark under heat also turns dark under other heat — or turns pale under UV light and plasticisers. A label in the window display can be grey and hard to read after a few weeks, and a label in a heated room can go the same way over some months. Abrasion against the goods next to it wears the coating down as well.

Direct thermal makes sense where the label has a short life: shipping labels, picking slips, one-day promotions, storage markings with high turnover.

Thermal transfer

In thermal transfer printing a ribbon sits between the printhead and the label. The head melts the ink onto the material dot by dot. The result is a print that does not depend on the coating of the paper and that, depending on the ribbon type, is very durable. Three ribbon types are common:

• Wax. Cheap, good on paper, sensitive to scratches and solvents. For labels that are not heavily handled.
• Wax-resin. The usual compromise. Considerably more scratch-resistant than wax, and it prints on paper and on coated materials. The most common choice for price labels and hangtags.
• Resin. The most resistant to abrasion, chemicals and moisture, and necessary for plastic and textile labels. Dearer, and it needs more printhead energy.

The consumption can be worked out. A ribbon runs down in step with the label web. Assume a ribbon roll of 300 metres and a label 30 millimetres long: one roll then covers around 10,000 labels. At a material cost of about 15 to 30 euro per roll, the ribbon share therefore lands between 0.2 and 0.3 cents per label — set against a label price of 12 to 15 cents, that barely registers.

203 dpi or 300 dpi

The resolution describes how finely the printhead can place dots. At 203 dpi a dot is about 0.125 millimetres wide, at 300 dpi about 0.085 millimetres. That sounds like very little, but on narrow bars it is the difference between a clean edge and a frayed one.

When 203 dpi is enough

• Article description, size, colour and price at type sizes from about 7 point upwards.
• EAN-13 or Code 128 at normal module width, that is from around 0.25 millimetres per narrow bar.
• Simple logos without fine lines.
• Labels from about 40 millimetres wide.

When 300 dpi is worth it

• Small hangtags that have to carry a lot of information.
• QR or DataMatrix codes below about 15 millimetres edge length.
• Brand logos with thin lines or serifs.
• Multilingual care or material details in very small type.

A higher resolution is not better in every respect. At the same speed the head has to set more dots, so 300 dpi devices tend to print a little more slowly, and printheads and ribbons cost more. If you only print price, size and barcode, 300 dpi gains you nothing. If you are unsure, print a sample label in the target format at both resolutions before you buy, and hold it against the goods.

Print method and resolution at a glance

Net list prices as at 2026, source: specialist dealers. Prices exclude VAT; business buyers elsewhere in the EU holding a valid VAT identification number are invoiced under the reverse-charge procedure. Project prices are often lower. Ranges given without a model name are orientation spans across several manufacturers, not offers.

How a label is encoded

The EPC memory

A UHF chip to EPC Gen2 has several memory banks. When labelling, almost always only one of them is written: the EPC area holding the object number, typically 96 bits long. In retail that usually carries an SGTIN-96 made up of the GS1 company prefix, an item reference and a serial number. If you work without a GS1 number range, you can also write an internal running number — as long as the labels never leave the shop and never have to be reconciled with outside systems. There is more on this on the page about RFID tags.

The immutable TID of the chip is not written, only read. It carries the manufacturer and model identifier and, on many chips, a unique serial number. Some systems use it to check whether a label is genuine or copied.

Verification after writing

A write is not guaranteed to succeed. The chip needs enough energy and has to be positioned correctly. Encoding therefore always includes a read-back: the printer reads the EPC it has just written and compares it with the target value. Only when the two agree does the label count as good. The EPC area can optionally be locked afterwards so that it cannot be overwritten. For shop use, locking is usually unnecessary, and it takes away your option of putting a label to new use.

Rejects and the void mark

If the verification comes out negative, the printer usually prints a void pattern — a black bar or a grid — across the label. That is deliberate: a printed but unencoded label would be dangerous, because it looks like a valid one. The void label is discarded and the job moves to the next one. The device settings decide how often the printer retries before it halts the job — three attempts is a common value.

A reject rate well below one per cent is normal with matching material. If it climbs, the cause is almost never the chip supplier but one of the following:

• The label material does not match the position of the encoder antenna.
• The write power is set too high, so the labels next to it are addressed as well.
• The label feed is not calibrated, so the chip sits beside the antenna when it is written.
• Metal parts or a second reader close by disturb the field.

Reject labels should not simply go into the waste bin if they might carry a valid number. Collect them separately and dispose of them together, or ghosts will turn up in the stock at the next count.

What an RFID printer costs

Net list prices as at 2026, source: specialist dealers. Prices exclude VAT, consumables, software and setup; business buyers elsewhere in the EU holding a valid VAT identification number are invoiced under the reverse-charge procedure. Please check availability and configuration with the dealer.

What falls due besides the device

• Labels. The largest running item. Passive UHF labels cost around 12 to 15 cents each in small quantities.
• Ribbons with thermal transfer. Around 15 to 30 euro per roll, depending on type and length; that works out at about 0.2 to 0.3 cents per label.
• Printhead. A wear part. Its life is quoted in kilometres of printed material; in a shop a head normally lasts several years.
• Software and setup. The label layout, the link to the merchandise system and the first calibration. A one-off effort, often included in the system package.

Buying alone or as part of a package

Buying an RFID printer on its own is possible, but rarely the simplest route: you also need a handheld, matching label material and software that drives both. Many suppliers — HANGCOUNT among them — therefore bundle printer, handheld and software into a package in which the components are matched to each other. The advantage lies less in the price than in the fact that material, device and layout fit together from the start.

Label material and formats

Hangtags

Card with an inlay laid into it, usually with a punched eyelet for a cord or a plastic tag pin. It is the most common form in fashion retail, because the tag hangs free in the air and therefore reads well — and because it leaves with the price ticket when the item sells. Typical formats lie between 30 x 50 and 50 x 90 millimetres. Card weights of 200 to 350 g/m² are usual; thicker card needs a printer path to suit.

Self-adhesive labels

Self-adhesive labels on a liner, with the inlay between paper and adhesive. Cheaper than hangtags and quicker to apply, but hardly usable on textiles. In the shop they mostly end up on shoe boxes, packaging, accessories and storage locations. Typical formats run from 40 x 25 to 100 x 50 millimetres.

Laundry labels

The inlay is welded into fabric or silicone, washable and built for many cycles. Relevant for workwear, rental linen, hotels and sports clubs. They cost considerably more than paper labels and are as a rule not printed in the shop but bought ready made up. Where they are printed after all, a resin ribbon is mandatory.

Roll sizes

Desktop printers usually take rolls up to around 127 millimetres outer diameter, on cores of 25 or 38 millimetres. Depending on the label size that is about 500 to 2,000 labels per roll. Larger rolls need an external unwinder or an industrial printer. For a shop needing a few thousand items a year, desktop rolls are the more practical size: they are quickly changed and tie up little capital.

Calibration, pitch and inlay position

Why the position decides it

The encoder antenna in the printer is deliberately small and tightly focused so that only one chip is addressed. That is exactly why it is sensitive to deviation: if the chip sits two centimetres to the side of the antenna, too little energy arrives and the write fails. If it sits too close to the chip next to it, the wrong one may be written. Printer manufacturers therefore state a permitted range for the inlay position on their devices, and label manufacturers state where the inlay sits.

Pitch and short labels

The pitch is the label length plus the gap. If it is very small, several chips lie in the working range of the antenna at once. Below a pitch of about 25 millimetres the encoding becomes critical; some devices offer a special mode for it, with reduced power or a second antenna position. If you need very small labels, test that with a sample before you buy rather than trusting a datasheet.

The calibration procedure

The whole procedure takes a few minutes and is repeated at every change of label type. When changing to a fresh roll of the same type, the media calibration alone is normally enough.

Label design and the data link

Layout

The label layout is built once and then filled with variables: article description, size, colour, price, barcode and, where wanted, the shop logo. Two things matter. First, the layout has to match the label format, or things get cut off or shifted. Second, the printed barcode should carry the same number as the chip — otherwise the till and the stock drift apart as soon as anything is scanned by hand.

The data link

• From the merchandise system or the till. The article master is handed over as a CSV or Excel export, and the software builds the label jobs from it. The usual route in smaller businesses, because it needs no programming interface.
• Straight from an app. Goods are recorded on a tablet and the labels go to the printer at once. Handy at goods-in, because recording and labelling become one step.
• Through the printer language. Zebra devices speak ZPL, other manufacturers have languages of their own. Layout and encode command can be sent that way, directly as a text command. Relevant for bespoke integrations.

Serialisation

Because every RFID label gets a serial number of its own, something has to count upwards. That task belongs in the software, not in the printer: it has to know which numbers are already issued, including after a power cut or an aborted print job. Numbers issued twice are the most common cause of counting errors later on, because two items then behave like one.

The printer in everyday shop life

Where to put it

The printer belongs on a fixed surface with room for goods on the left and finished labels on the right. What matters is distance from larger metal surfaces and from other UHF devices, because either can disturb the encoder field. One to two metres from a handheld in use is normally enough. If the goods are labelled on the shop floor, a device with Wi-Fi or Bluetooth is more comfortable, because no network cable has to be laid.

The goods-in sequence

Who operates it

Once it is set up, an RFID printer is not a specialist device. Anyone who can operate a label printer can operate this one: change the roll, change the ribbon, release a print job, open the flap when the paper jams. Only the first configuration is demanding — the material profile, the layout, the data link. The supplier does that once, and after that it is routine.

Working out the time for a collection

An example to put it in scale: 600 items of new stock, one member of staff, hangtags with plastic tag pins. Assume 300 items per hour, and that is two hours of work, split between printing and attaching. The printer itself needs around ten minutes for 600 labels, assuming one second per label. The rest of the time goes into the handling. If you want to be quicker, split the work between two people or have frequently bought basics pre-encoded by the supplier.

Common questions about RFID printers

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