Users of HP Printer often face hassles in printing with the black ink. In some cases printer does not allows the black print due to varied reasons. If you have also encountered such glitch and even tried the troubleshooting steps and got no result, then it is suggested to take help from the HP tech support phone number 1-800-234-6190 that can be reached 24x7, round the clock. The support executives will provide effective solution in no time.
www.customersuportservice.com/hp-customer-support/More details: HP Tech Support Phone Number