The S3000 Printer From Brady Corporation can do single-color job printing. What that means is that it can do different colors but its just not on the fly like you would imagine with a PC type of printer with ink cartridges that can make whatever color you are trying print. The S3000 (and many others from Brady) uses single color ribbons that need to be changed should you want a different color.
Here is a link to the Printer and its associated ribbons and labels
Printer
Color Ribbons
Labels, which can also be ordered in difference colors.