If your HP printer is showing as offline, you can try the following steps to fix the issue:

1. Check the printer connections: Ensure that the printer is properly connected to the power source and to your computer or network. If you are using a wireless connection, make sure that the printer is connected to the Wi-Fi network.
2. Restart the printer: Turn off your HP printer, wait for 10-15 seconds, and then turn it back on. This can help reset the printer and resolve any temporary glitches.
3. Check the printer status: Go to the Devices and Printers section on your computer and check the status of your HP printer. If it is listed as offline, right-click on the printer icon and select “See what’s printing”. If there are any pending print jobs, cancel them all and then try printing again.
4. Update or reinstall printer drivers: Sometimes, outdated or corrupted printer drivers can cause the printer to go offline. To fix this, go to the HP website, download and install the latest drivers for your printer.
5. Disable Use Printer Offline: Go to the Devices and Printers section, right-click on your HP printer and uncheck the “Use Printer Offline” option.
6. Restart the Print Spooler service: Go to the Services section on your computer, find the Print Spooler service, right-click on it, and select Restart.

If none of the above steps work, you may need to contact HP support for further assistance.