When adding a network printer through the UI, and then attempting to print, you may find that you’ll receive the following error: “printer rejecting jobs” and the document fails to print.
To solve this, access the CUPS admin interface: http://localhost:631/admin click on “Add printer” and then select the discovered network printer, click continue and then insert your local machine username and password when prompted. You will then find that when attempting to print from hereon out, that everything should work as expected.