Hello Bob_in_GA,
Welcome to the HP Forums!
I understand your Officejet 8500 Premium is making a "Pinging Sound". I will do my best to assist you! Please make sure this printer is plugged into a direct wall, not a surge protector. This will test out the power and to verify if you're experiencing the same problem.
I would recommend following this HP document on The Product Makes Noise when Printing. Sometimes, when a printer makes noises, it could indicate there is some paper within the printer. Please follow this HP document on 'Carriage Jam' Message Displays on the Control Panel Display.
Please post your results! :smileyhappy: