Almost all HP printer users experience various types of technical issues with their printing machines. HP printer has become the first and important choice of all printer users. When I attempt to print the documents in the black colors, I am facing HP printer not printing black error. This technical problem is out of my hand, hence I am unable to sort out this error. I have applied my all troubleshooting skills for solving this technical issue. So please anyone can recommend the simple ways to sort out this technical error.