Hii my name is Luna Fallon i am from the technical team if you are facing a problem then you can visit our site.If your HP printer is offline on Windows 10, there are several steps you can take to troubleshoot the issue. Firstly, check the printer's connectivity, ensure that it is properly connected to the network, and has a stable wireless signal. Secondly, ensure that the printer drivers are up-to-date and compatible with Windows 10. Thirdly, check the printer settings to ensure that it is not set to "offline" or "sleep mode". Finally, try restarting both the printer and computer to refresh the system. If the issue persists, seek further technical support from the manufacturer or a certified technician.