What does it mean if the HP Smart app says 'Printer Offline' even though the printer is on and connected?

The 'Printer Offline' message indicates a communication issue. Check the printer's network connection status. Try manually adding the printer in the HP Smart app by entering its IP address. Ensure the printer's firmware is up-to-date. Also, check if other devices can access the printer on the network. If not, the problem likely lies with the printer itself or its network configuration.