You can use various techniques to fix HP Officejet Pro 8710 offline issue. To begin with, resetting the printer may be necessary to re-establish communication between the computer and printer. Turn off the HP Officejet 8710 printer, wait around 15 seconds, and then detach the printer’s power cable. To begin, remove the previous printer drivers. After that, install the most recent printer driver. Select HP Officejet Pro 6978 Printer as your default printer.