How do I resolve HP printer not printing problem?

Every day, thousands of business users are using HP printer for various printing purposes. With the help of HP printer, I can complete my printing tasks fully. Suddenly, my HP printer refuses to print the documents, hence my printing tasks have stopped immediately. I am facing HP printer not printing error, so I am looking for expert’s help for this technical glitch. There may be possible technical causes of it. I am trying to guess about the causes, but it is out of my presumption. Can you provide the fast fixes for this technical glitch?