# A Guide to ID Card Printer Ribbons: YMCKO, KO, and Everything In Between
If you've just bought your first card printer — or you're trying to reorder supplies and the ribbon codes look like someone sat on a keyboard — this guide is for you.
Printer ribbons are the single biggest ongoing cost of running a card printer. Choosing the right type saves money and gets you better-looking cards. Let's break it all down.
How Card Printer Ribbons Work
Unlike a regular inkjet or laser printer, card printers use thermal transfer ribbons. The ribbon is a thin film with panels of colour (or single-colour coating) that gets transferred onto the card by the printhead using heat.
Each panel prints one pass across the card. Once used, that section of ribbon is spent — it's a one-use consumable. This is why ribbon type directly affects your cost per card.
YMCKO: The Standard Full-Colour Ribbon
YMCKO stands for:
- Y — Yellow
- M — Magenta
- C — Cyan
- K — Black (Key)
- O — Overlay (clear protective varnish)
Each card uses one complete set of five panels. The yellow, magenta, and cyan panels combine to produce full-colour images — photos, logos, coloured backgrounds. The black panel handles sharp text and barcodes. The overlay adds a clear protective layer that resists scratching and fading.
YMCKO is what you need for standard photo ID cards, staff badges, membership cards — anything with a colour image.
Most YMCKO ribbons print between 200 and 300 cards per roll, depending on the printer model.
Browse our full range of printer ribbons.
YMCKOK: Dual-Sided Full Colour
Some ribbons add a second K panel — YMCKOK. This prints full colour on the front and black-only on the back in a single pass. Handy if you want a colour photo on the front and monochrome text, barcodes, or terms and conditions on the reverse.
It's more economical than using a full YMCKO on both sides, since you're only using colour panels where you actually need colour.
Monochrome Ribbons (K)
A monochrome ribbon has a single colour across the entire roll — no panels, just one continuous strip. Black (K) is by far the most common, but you can also get white, blue, red, green, gold, and silver.
Monochrome ribbons are significantly cheaper per card than YMCKO. A single black ribbon typically prints 1,000 to 2,000 cards — five to ten times more than a colour ribbon.
Use monochrome when you don't need colour. Think simple text-and-barcode cards, basic visitor passes, or cards where the design is pre-printed and you're just adding variable data like a name and number.
Half-Panel Ribbons (KO and Half-Panel YMCKO)
Here's where it gets interesting — and where you can save real money.
Half-Panel YMCKO
A half-panel YMCKO ribbon has colour panels that are literally half the normal size. The idea is that most ID cards only have a colour photo on part of the card — usually the top or left side — with the rest being text and barcodes in black.
Because the colour panels are smaller, you get more prints per roll. A standard YMCKO might give you 250 prints; the half-panel version of the same ribbon could give you 350-400.
The catch: your colour image has to fit within the half-panel area. If your card design has colour spread across the full card, half-panel won't work.
KO (Black + Overlay)
A KO ribbon prints black text and graphics with a protective overlay — no colour at all. It's a step up from plain monochrome because the overlay protects the print from wear.
KO is a solid choice for cards that need to be durable but don't need colour. Access cards, parking passes, simple membership cards.
Retransfer Film
If you're using a retransfer printer, you'll need retransfer film in addition to your colour ribbon. The printer prints onto this clear film first, then bonds the film to the card.
Retransfer film is an extra consumable cost — but it's what gives retransfer printers their edge-to-edge, over-the-surface printing capability.
Cost Per Card: A Rough Guide
Here's a ballpark for typical DTC printers — actual costs vary by brand and model:
| Ribbon Type | Cards Per Roll | Approx. Cost Per Card |
|---|---|---|
| YMCKO (full colour) | 200-300 | 15-40 cent |
| Half-Panel YMCKO | 350-400 | 10-25 cent |
| YMCKOK (colour + black back) | 200-250 | 20-45 cent |
| Monochrome (K) | 1,000-2,000 | 2-5 cent |
| KO (black + overlay) | 500-1,000 | 5-10 cent |
These figures include just the ribbon. Add a few cent for the blank card itself.
If you're printing thousands of cards a year, the difference between YMCKO and half-panel can add up fast. Worth checking whether your card design allows it.
Matching Ribbons to Your Printer
This is important — ribbons are not interchangeable between brands. An Evolis ribbon won't fit a Fargo printer. Even within a brand, different printer models often use different ribbon SKUs.
Always match the ribbon to your exact printer model. If you're not sure which ribbon you need, check the printer manual or just ask us — we'll sort you out.
Here's where to find ribbons by brand:
- Evolis ribbons — Primacy 2, Avansia, Zenius, and more
- Fargo ribbons — DTC1250e, DTC4250e, DTC4500e, HDP range
- Magicard ribbons — Magicard 300, 600, Rio Pro
- IDP Smart ribbons — Smart-31, Smart-51, Smart-70
- Entrust ribbons — Sigma DS2, DS3, CD800
- Zebra ribbons — ZC100, ZC300, ZC350, ZXP Series
- EasyBadge ribbons — EasyBadge printer range
Storage and Handling Tips
Ribbons are more sensitive than you might think. A few quick tips to keep them in good shape:
- Store in the original packaging until you're ready to use them. The sealed bag protects against dust and humidity.
- Keep them at room temperature. Extreme heat or cold can affect print quality.
- Don't touch the ribbon surface. Oils from your fingers can cause spots and streaks on printed cards.
- Use them within 12 months. Most ribbons have a shelf life. Older ribbons can produce faded or patchy prints.
The Short Version
- Full-colour photo cards? YMCKO.
- Colour front, black-only back? YMCKOK.
- Colour photo on part of the card only? Half-panel YMCKO — saves money.
- No colour needed, just text and barcodes? Monochrome (K) or KO.
- Retransfer printer? You'll need transfer film plus your colour ribbon.
- Always match the ribbon to your exact printer model.
If you're not sure what you need, give us a call or drop us a message. We'll match the right ribbon to your printer and your card design — takes about two minutes.
Browse all printer ribbons and consumables.
