When your HP printer shows as **offline**, it means your computer cannot communicate with the printer to send print jobs. Common causes include connection problems (Wi-Fi, Ethernet, or USB), outdated printer drivers, incorrect printer settings, or issues with the print queue or spooler service[2][3].

To fix an HP printer reading offline, try the following steps:

1. **Restart printer and connections**: Turn off your printer, unplug it from power and your computer/network, wait about 5 minutes, then plug everything back in and power it on[1][4].

2. **Check printer status and default printer setting**: On your computer, go to “Devices and Printers,” find your HP printer, right-click it and select “Set as Default Printer.” Also, make sure the printer is not set to “Use Printer Offline” mode in printer properties[3][4].

3. **Verify network or USB connections**:
– For Wi-Fi, ensure the printer is connected to the correct wireless network. You may need to use the printer’s control panel to disconnect and reconnect or run the Wireless Setup Wizard[4].
– For USB, ensure the cable is securely connected, or try a different USB port or cable[2][3].

4. **Update or reinstall printer drivers**: Download the latest drivers and software from the HP website to fix compatibility or corruption problems[2][3].

5. **Clear the print queue and restart the print spooler service**: Sometimes print jobs get stuck, causing the printer to appear offline. You can clear the queue and restart the spooler via Windows Services or through HP troubleshooting tools[2][3].

If these steps do not resolve the issue, more specific troubleshooting based on your printer model and connection type may be necessary[2][3][4].

In summary, the key is to ensure your printer is properly connected, recognized as the default printer, drivers are updated, and there are no stuck print jobs—all common reasons why HP printers show offline[1][2][3][4].