Manumora,
I wish I could add more to this, I was researching and trying to test under my Ubuntu station, I am still researching with my station. Well, when I have time anyways.
Have you posted on the Ubuntu forums, askubuntu.com ?
They do have something a couple of Questions posted there that might help a little.
I don't use sudo but yes, I have runned it authenticated as root
# xeroxprtmgr
I am taking it that you are running this command line "sudo xeroxprtmgr" as root ?
Hello!
Drivers doesn't work over Xubuntu 18.04 (xfce4)
-------------------------------- Application: Xerox Printer Manager -------------------------------- Time Stamp: 09/20/18 08:59:55 Process ID: 2437 System name: Linux Node name: d-profesores3 Release: 4.15.0-34-generic Version: #37-Ubuntu SMP Mon Aug 27 15:21:48 UTC 2018 Machine: x86_64 Log level for module ConstraintEngine is 2 Log level for module DriverFeature is 3 Log level for module GUI is 5 Log level for module Global is 2 Log level for module Installer is 4 Log level for module Networking is 1 Log level for module ProductPlugin is 4 Log level for module Prtmgr is 4 Log level for module Quemgr is 4 -------------------------------- 08:59:55 - ERROR/DriverFeature: FeatureXMLTagHandler() - No Custom Load XCPT Callback Handler element No protocol specified 08:59:55 AM - ERROR/ComponentDirector: ComponentDirector::parseXMLData() - Failed to create GUI object 08:59:55 AM - FATAL/Prtmgr: ********** Error parsing AdminUtil GUI XML ********** Terminating logging facilityThank you in advance