If your HP 5030 printer says offline, you can try the following troubleshooting steps to resolve the issue:

1. Check the printer connections: Ensure that your printer is properly connected to your computer or network. If it’s connected via USB cable, make sure it’s securely plugged in at both ends. If it’s connected via Wi-Fi, ensure that the Wi-Fi network is working properly.
2. Restart the printer and computer: Turn off your printer and computer, and then turn them back on again. This will help to refresh the connection and resolve any minor issues.
3. Check the printer status: On your computer, go to the “Devices and Printers” section and check the status of your HP 5030 printer. If it’s shown as offline, right-click on the printer and select “Use Printer Online” to bring it back online.
4. Update printer drivers: Outdated or corrupted printer drivers can cause offline issues. Go to the HP website and download the latest drivers for your HP 5030 printer. Install the drivers and restart your computer.
5. Disable printer offline mode: On your computer, go to the “Devices and Printers” section, right-click on your HP 5030 printer, and select “Printer Properties”. In the Properties window, go to the “Ports” tab and uncheck the “Use Printer Offline” option.

If these troubleshooting steps do not resolve the offline issue with your HP 5030 printer, you may need to contact HP customer support for further assistance.