To get your HP printer online, you generally need to ensure it is properly connected to your computer or wireless network and that its status is set to online. Here are key steps to get your HP printer online:

1. **Check Printer Connection:**
– For USB, confirm the cable is securely connected to both the printer and computer.
– For wireless, ensure the printer is connected to your Wi-Fi network. You can connect via Wi-Fi Protected Setup (WPS) by pressing the wireless button on the printer and then the WPS button on the router within 2 minutes to establish the connection without needing a password[1][3].

2. **Restart All Devices:**
Turn off and unplug your printer, then restart your computer and router. After they are restarted, turn your printer back on and try printing again[2].

3. **Set Printer as Default:**
On your computer, open “Devices and Printers,” right-click your HP printer, and select “Set as Default Printer” to ensure print jobs are sent properly[2][4].

4. **Use HP Smart App (Optional for Wireless Setup):**
Install the HP Smart app on your mobile device, open it, add your printer, select your Wi-Fi network, enter the password, and complete the setup. When the printer’s Wi-Fi light stops blinking, the connection is established[5].

5. **Check Printer Status & Services:**
Verify the printer is set to ‘online’ in your computer’s printer settings. If necessary, run the HP Print and Scan Doctor tool to diagnose and fix connectivity or driver issues. Also, check that Windows services related to network discovery are running[4].

Following these steps should help you get your HP printer online and ready for printing.

If problems persist, ensure no print jobs are stuck in the queue and that your printer’s firmware and drivers are up to date[2][4].