On one of our laptops, we had popups about printer settings update 200 times per day. It was getting really annoying and so without thinking about it enough, I've unload and remove cups service.
sudo launchctl unload /System/Library/LaunchDaemons/org.cups.cupsd.plist sudo launchctl remove /System/Library/LaunchDaemons/org.cups.cupsd.plist
Popups are gone. But unfortunately, now we need Cups back and I can't figure out how to install it again. Could you explain the installation process for Cups? and launchdaemons maybe?
lpadmin command return
lpadmin: Unable to connect to server: Bad file descriptor.