How Do I Fix My HP Printer Not Printing Color​? (Full Guide)
Is your HP printer refusing to print in color right when you need it the most? Don’t worry - you’re not alone. Many HP users face this problem, and the best part is that most of the time, it is mainly caused by small, fixable things. Whether your prints are coming out dull, missing certain colors, or showing only black and white, there is a clear reason behind it.

Source: https://sites.google.com/view/fixprinternotprinting/blog/hp-printer/how-do-i-fix-my-hp-printer-not-printing-color-full-guide