I would recommend trying to un-install and re-install with the Xerox Print Driver for Catalina
My ColorQube 8880 is usually very reliable. Overnight I lost the ability to print over my network. I have tried with the Airprint PPD and the latest 5.7.2 PPD but just get "printer not responding". I can, however, print if I connect my MacBook directly to my ColorQube with an ethernet cable. Any ideas on how to fix my networking problems?