Printer not printing in color occurs due to multiple reasons; the major one could be settings related issues or some other hardware problem. At times when you are using the multicolor printer, then due to your printer being at Grayscale printing mode, it will print out only black and white pages. So you need to go to right-click your printer name and click Default printing. You can also make sure that you are not using an empty or dried ink cartridge. After following these steps, you will be able to resolve the printer not printing in color issue.