YMCK, YMCKO, YMCKOK – the letters on an ID card printer ribbon tell you which colour, black and protective panels it contains.
Choosing the right ribbon depends on what you want to print and the exact ID card printer you use. Ribbons are model-specific, so the code explains what a ribbon does and not whether it will fit your printer.
What do the letters on an ID card printer ribbon mean?
Unlike a desktop inkjet printer, many plastic card printers use a ribbon divided into separate panels. Each letter in the ribbon code represents one of those panels.
The Y, M and C panels combine to create the colour image. The K resin panel produces crisp black text, numbers and barcodes, while the O panel adds a clear protective layer over the finished print.
YMCK, YMCKO and YMCKOK ribbons explained
Full colour with resin black
A YMCK ribbon contains yellow, magenta and cyan colour panels plus a black resin panel. The black panel is useful for sharp text, numbers, barcodes and QR codes where a crisp solid black is preferable to a composite black made from the colour panels.
YMCK ribbons do not include the clear overlay represented by the O in YMCKO. They are used by certain printer models and printing systems, so always check compatibility before ordering.
The common full-colour ribbon
YMCKO means Yellow, Magenta, Cyan, Black and Overlay. It is one of the most common ribbon formats for full-colour direct-to-card printing.
The YMC panels create photographs, logos and other colour elements, the K panel produces sharp black details, and the clear O panel adds a thin protective topcoat over the printed surface.
It is a typical choice for staff ID cards, membership cards, visitor cards and other full-colour plastic cards.
Colour front, black reverse
YMCKOK is a double-sided ribbon format. The YMCKO panels are used for the colour side of the card and the additional K resin panel is used for black printing on the reverse.
It is particularly useful when the front of a card contains a photograph and branding, while the back contains black text, terms, numbers or a barcode.
YMCKOK ribbons are only suitable for compatible double-sided printers. If you need full colour on both sides, check the ribbon options specified for your printer rather than assuming a YMCKOK ribbon will do the job.
Not sure whether you need an automatic double-sided printer? Read our guide to printing double-sided cards on an ID card printer .
YMCK vs YMCKO vs YMCKOK
| Ribbon | What it contains | Typical use |
|---|---|---|
| YMCK | Full colour + resin black | Full-colour printing where the compatible printer does not require an overlay panel |
| YMCKO | Full colour + resin black + clear overlay | Standard full-colour photo ID and membership cards |
| YMCKOK | YMCKO + an additional black panel | Full colour on the front and black information on the reverse |
What is a monochrome printer ribbon?
Monochrome simply means printing in one colour. Black is the most common monochrome ribbon, but selected printers also offer colours such as white, gold or silver.
If your cards only need black text, serial numbers, barcodes or a simple one-colour design, a compatible monochrome ribbon can be considerably more cost-effective than using a full-colour YMCKO ribbon.
What do F, T and other ribbon letters mean?
Some manufacturers use additional letters or panel combinations for specialist printing. These codes are not completely universal, so the product specification for your printer should always be the final check.
- F – usually identifies a fluorescent panel used to add elements that become visible under UV light.
- T – used by some manufacturers to describe a protective topcoat or overlay panel.
- YMCKOO – includes an additional overlay panel and is available for certain printer models.
- YMCKUV / UV – may be used for ribbons that include a UV fluorescent printing panel.
The ribbon code alone does not tell you whether a ribbon fits your printer.
Two printers from the same manufacturer may use completely different ribbon cartridges. Always check the exact make, model and, where relevant, whether your printer is single or double sided.
How many cards will an ID card printer ribbon print?
Every ribbon has a stated print yield, such as 100, 200, 250 or 300 prints. The correct size depends on the ribbon and printer rather than simply choosing the largest roll available.
The expected yield is shown on the individual ribbon product page. Remember that printing full colour on both sides can use two full-colour panel sets per finished card.
Don't forget about the ribbon when you've finished with it.
Used printer ribbons can retain an impression of the information printed onto your cards. If you're printing names, photographs or other personal information, read our guide to securely disposing of used ID card printer ribbons .
Use our ribbon finder to search by printer model, manufacturer or ribbon code. We'll show the compatible supplies matched to your printer.
