That's quite difficult, since I don't know what you consider as your "original colours". Your file on a screen, an on-screen photo of something, or a real object ?

Here are some steps you'd need to take:

1. When working on a screen (like in Photoshop) you'd first need to calibrate your screen, to compensate for its own deviations and flaws. Many screens aren't even capable (or worth the effort) of applying any kind of calibration.
2. Next: accommodate your workplace to a neutral environment, with special devices to shield of any bright sunlight, in combination with neutral office lighting.
3. Finally: using any printer means getting the best achievable quality in colors (their tones and brilliance) in that specific process, and prepare your file or process to compensate for the printer's process, deviations, and flaws.

So a colour laser printout (from a regular office device) will never be able to look as bright and pristine as on your screen or in the neat and glossy materials you'll get from a real printing press. So it's also a matter of managing your expectations.

I know, this isn't the simple answer you were probably looking or waiting foor, but it's a delicate matter. Start by managing your expectations – that's the easiest step.

Oorspronkelijk geplaatst op Quora: How can I make my digital artworks (CMYK Photoshop files) print truer to their original colors with a laser printer?"