So I literally spent 2 hours trying to get my Canon Pixma printer to work... it suddenly stopped responding with the error message "your printer is offline" ... even if it was connected by cable.
I reset the driver - no change.
I changed cables - still nothing.
I tried on 2 different computers (desktop and laptop) - always "offline".
Then I revived my faithful Macbook Air 2014 (which I'd been using up till last year) and plugging in the USB 2 cable (without adapters) did the trick, as I had suspected.
This is why I keep my beloved Macbook Air 2014 around: 12 years old and still working wonderfully 🤗