To resolve the Printer Offline HP problem on Windows 10, try the following solutions:

• Enter "devices" in the search box or ask Cortana to launch Devices.

• Pick your printers and scanners.

• Be sure to uncheck "Let Windows manage my default printer." Click the box to de-select it if necessary.

• From the drop-down menu, select your printer.

• If your printer is listed more than once, choose the version that is displaying an online or idle state & Click Manage.

• Clicking the button will set it as the default.