If your using a cloud printer and the jobs stop showing up most likely it is the xerox print and scan experience app causing issues. 

Go to settings, then select apps, then installed apps. Scroll to the bottom and you will see xerox print and scan experience. Click the 3 dots to the right of the app and select uninstall. Once uninstalled try printing again and you should be working now. If not there may be other underlining issues or you may need to restart.