KW-M806 receipt printer: what it's for, which paper it uses and how to set it up

The KW-M806 receipt printer is an 80 mm thermal printer for point of sale (POS) designed for busy tills: it prints at up to 300 mm/s, speaks the ESC/POS standard and connects via USB, Serial or LAN. Its only consumable is thermal paper, because it works by direct thermal: no ink, no toner and no ribbon. At Startoner you can get it for 63.99 €, in stock and with delivery within 24 h to mainland Spain. Below we explain what it's for, which roll it uses and how to get it set up.

Key points

• It's an 80 mm direct thermal printer: it prints by applying heat to heat-sensitive paper. It uses no ink, toner or ribbon.
• Speeds of up to 300 mm/s, among the fastest on the market, so the queue at the till doesn't build up.
• Built to take a beating: a print head rated for 150 km of service life and an automatic cutter good for over 1.5 million cuts.
• Triple interface as standard: USB, Serial and LAN (Ethernet). Bluetooth and Wi-Fi as a configurable option.
• ESC/POS language, high-density 1D barcodes and QR codes, plus wall mounting. Price: 63.99 €.

What is the KW-M806 for?

It's a receipt printer for the counter. It connects to your POS or till software and produces the sales receipt the moment you close the sale. The format is the classic 80 mm width, which is the standard in retail and hospitality.

Where it really shines is in high-volume settings. A supermarket at peak hours, a large restaurant firing off order tickets non-stop or a logistics centre printing delivery notes and dispatch labels. In those environments, every extra second spent printing turns into a longer queue, and that's exactly where 300 mm/s makes the difference. It also prints high-density 1D barcodes and 2D codes (QR) and supports multiple columns, so it works just as well for the till receipt as for vouchers, collection labels or QR proof-of-purchase slips.

If you're still deciding which unit fits your business, our guide on how to choose a thermal printer for your business runs through the basics, and in the thermal printer collection you'll find the rest of the range in case you need a label printer or a more compact option.

The thermal truth: no ink, no toner, no ribbon

This is what confuses people buying their first receipt printer the most, so let's get straight to the point: the KW-M806 is direct thermal. It prints by applying heat to a special paper that reacts to that temperature and darkens where needed. There's no ink cartridge to replace, no toner and no ribbon or thermal film either.

In plain terms for your wallet: the only consumable is the thermal paper roll. No more drama over being left stranded because a cartridge fails on a Saturday lunchtime. If you're coming from the world of laser or inkjet printers, this is a big shift in mindset; in case it helps, our ink cartridge or toner article explains the differences between those two technologies, neither of which applies here. And if you want to do the maths before deciding, the real cost of printing shows you why the cost per receipt with a thermal printer is so low.

Which paper the KW-M806 uses (and why it should be BPA-free)

It uses 80 mm wide thermal paper rolls, which are the most common on the market. It accepts standard rolls, so you're not tied to a proprietary consumable or a specific brand: any 80 mm thermal roll in good condition will do.

One detail worth keeping in mind is bisphenol A (BPA). For years thermal paper was made with developers containing this substance, and European regulation has restricted it. Since 2 January 2020, Regulation (EU) 2016/2235 has banned the sale of thermal paper containing BPA at a concentration equal to or above 0.02% by weight. You can consult the official text on EUR-Lex.

The practical advice is simple: always buy rolls marked as "BPA-free" or "phenol-free". You stay compliant with the regulation and, as a bonus, the paper is better suited to continuous use at the till. The KW-M806's Easy Drop-In loading system helps a lot here, because changing the roll takes seconds: open it, drop the roll in and close.

Speed, print head and cutter: why it stands up to heavy traffic

The three figures that define this machine all tell the same story, that of a unit built to work hard:

• Up to 300 mm/s. It's one of the highest speeds you'll see on an 80 mm printer. At a supermarket till, the difference between a receipt that takes its time and one that comes out almost instantly adds up over the course of the day.
• Thermal print head with 150 km of service life. The print head is the part that applies the heat and takes the most wear. 150 km of print travel is a figure designed for heavy use, not for a shop that prints four receipts a day.
• Automatic cutter rated for over 1.5 million cuts. It cuts the receipt on its own, without anyone tearing at the paper, and it does so more than one and a half million times before showing any signs of fatigue.

On top of that, it can be wall-mounted, which frees up space on a counter that's almost always tight. It's a practical touch on small tills or at a restaurant bar.

Connections and integration with your POS (ESC/POS)

The KW-M806 comes with a triple interface as standard: USB, Serial and LAN (Ethernet). That covers practically any setup: connect it via USB to a till PC, via Serial to an older POS or over the network if you want to share it between several stations. If you need mobility or want to avoid cables, there's Bluetooth and Wi-Fi as a configurable option.

On the software side, the key point is that it speaks ESC/POS, the standard language of receipt printers. This matters: most POS, hospitality and retail programs speak ESC/POS out of the box, so the printer talks to them without any awkward hiccups. It's the same language used by other receipt models such as the M804; label printers, on the other hand, play in a different league (ZPL, EPL and the like), but for receipts the standard is ESC/POS, full stop.

You'll find the full spec sheet, availability and options on the KW-M806 receipt printer page.

How to set up the KW-M806 step by step

Getting it up and running is straightforward. These are the general steps:

• 1. Load the roll. Open the cover, use the Easy Drop-In system to drop in the 80 mm BPA-free roll and close it. The paper feeds out through the slot on its own, ready for the first cut.
• 2. Choose the connection. Decide how you'll link it to your till: USB for a PC, Serial for a classic POS or LAN if it's going on the network. Plug in the appropriate cable and the power supply.
• 3. Install the driver. Install the printer driver on your computer or, if your POS software already works with ESC/POS printers, select it directly from the program's settings.
• 4. Adjust width and speed. Confirm the paper is set to 80 mm and, if your software allows, set the speed to maximum to make the most of the 300 mm/s.
• 5. Run a test print. Produce a test receipt and check that the automatic cut works and that the barcodes or QR codes come out crisp.

If at any point you notice the print coming out lighter than usual, it's almost always down to the paper, not the machine: a poor-quality thermal roll marks less clearly. Switch to a proper BPA-free roll and the problem usually disappears.

Price, delivery and guarantee

The KW-M806 receipt printer costs 63.99 € at Startoner, it's in stock and ships with delivery within 24 h to mainland Spain. All our units pass ISO 9001 quality controls, come with dedicated customer support and a 3-year legal guarantee, as we explain in our guide to the legal guarantee in Spain.

If you're upgrading your till equipment ahead of next year, printing trends 2026 reviews where the sector is heading, and in the thermal printer collection you'll find every model to compare before you decide.

Frequently asked questions