Printer Error Code 20 in HP printer which signifies that “Printer Not Activated, displayed usually on computer while printing. It is suggested by HP printer support experts that before proceeding to solution, they are requested to verify if printer is working fine? The HP Technical Support Team is always active to assist the users with any sort of HP Printer problems. But simple troubleshooting steps will enable the users to fix the trouble of their own without any hassle. Try out the printer troubleshooting steps of your own to fix the trouble first before connecting to the technicians.