Windows 10 stopped detecting my TS8120 inkjet. It was fine Monday; the problem started yesterday. The printer is listed in hardware as the default printer. I restarted my laptop and shut of the printer off and on. No deal. It's on WiFi.
I suspect the printer's IP address originally assigned by your router or DHCP server has changed from what your computer believe it was last (when it worked). I would suggest assigning or reserving a static IP for the printer on your router. Then remove and re-add the printer using this IP address. Once this is set, it will never change and other devices on the network will be able to find the printer at its persistent destination (statically assigned IP address) which will not be a "moving target'.