network printer authentication prompt is not shown

Hello, I can't get Kubuntu 18.04 on my laptop to connect to my university's network printer,
It's this model: https://www.sharp.com.hk/en/download/711-MX-6070N and it's shared through smb.
I've tried reaching it through a smb:// and lpd:// URI prefixes over the university wlan.
I've tried printer setup both in system settings and in the Cups web interface at localhost:631. I installed it using a ppd file from Sharp website.
Once I complete installation (I reach the screen for Printer description: Name, location: the "Continue" button is not clickable here, I can only click "Finish"), in Kubuntu printer setup, nothing happens - the printer is not in list.
According to our helpdesk, the problem is there is never an authentication prompt asking for UID and password. That's also the case when I include my UID in the URI to locate the printer.

I seem to recall having to set up such printers in SAMBA rather than directly in CUPS to get that working right.

Originally Posted by wpeckham I seem to recall having to set up such printers in SAMBA rather than directly in CUPS to get that working right.

Never heard of setting up a printer *in Samba*... sound like I'd need admin access to printer/network?

If the server is a linux server, then you can ignore Samba and connect to it through cups. You do need some info on the server, queue name, and being a university, probably the IP address of the server. I'm guessing its a linux server, since linux runs Samba for windoze network sharing.

If it in fact is a Windows server, the game changes. You can still print to a windows system without using windows sharing.
I just went through that mess.

The reason you can not get the log on, thank Mr Gates and company. That logon is supplied through SMB1 protocol, which has been removed from windoze, and now removed from Version 4 Samba. Minimum protocol supported now is SMB 2.1. You can still see samba shares, including printers if you use smbclient -L biosname (of the win server).