One of the most common issues why an HP OfficeJet Pro 8620 Wireless printer would go offline is because of keeping the printer in an idle state for a prolonged period. In... moreOne of the most common issues why an HP OfficeJet Pro 8620 Wireless printer would go offline is because of keeping the printer in an idle state for a prolonged period. In addition, incorrect printer settings can also lead the printer to go offline. You can follow the below-mentioned steps to resolve such issues:
Turn off the printer and disconnect the printer’s power adapter from the electric socket.
Wait for two minutes and connect the power adapter back to the electric socket; turn on the printer and check if the printer is online.
Check if the printer is connected to your computer either wirelessly or with a cable, such as USB.
Go to the Control Panel and then select ‘Devices and Printers’.
Right-click on your printer and select ‘See what’s printing’.
Select the ‘Use printer Online’ option and check if the issue is resolved. less