What’s the CMYK Colour Model Used in Your Office Printer? - National Printer Repairs National Printer RepairsWhat’s the CMYK Colour Model Used in Your Office Printer? - National Printer Repairs

What’s the CMYK Colour Model Used in Your Office Printer?

You may have seen the letters CMYK on your printer, but do you know what it actually means?

CMYK is a subtractive colour model used in colour printing. It refers to the colours of the 4 inks used in the printing process – cyan, magenta, yellow and ‘Key’, which represents black.

CMYK is considered a ‘subtractive’ colour model due to the way in which it takes away from light wavelengths when printed. For example, on white paper, the ink reduces the light that would otherwise be reflected from the background and either masks it completely or partially.  This is different than the RGB (red, green, blue) method which is considered an ‘additive’ colour model as red, green and blue (primary colours) are mixed to create an array of colours.

In CYMK, Cyan is known as minus-red, magenta as minus-green, and yellow as minus-blue. Where two inks overlap on the paper due to sequential printing impressions, a primary colour is perceived. For example, yellow (minus-blue) overprinted by magenta (minus green) results in red. In the case of all three inks overlapping, almost all incident light is absorbed or subtracted which will result in black, or at least near black. While it is possible to represent black in this way, it’s more efficient and much more cost effective to use a separate black ink instead of combining three colours.

Your printer works by a process that involves the transfer of lots of tiny dots of ink which, to the naked eye, are completely invisible. When the colours combine, they create the illusion of a full colour image! Essentially, when we print in colour, we are seeing one big optical illusion.

For printer cartridge replacements and printer repairs, contact National Printer Repairs today!

Posted on November 24, 2017 | Posted by Paul V
| 0 Comments |

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