I have a MAC running OS10.12.3. Out of the blue, my printer stopped recognizing my computer. I send a document to print, the computer shows the printer going from "Idle" to "In Use". But the printer remains at "Ready" and doesn't print. I have changed nothing since the last time I printed. Help!
Something clearly changed, so just uninstall then reinstall the printer on the Mac.
As cliche as it is, from time to time it makes sense to restart your mac. They usually work great and can go for months without a restart. But then that day comes and something unexplainable happens. Than it is time to restart.