I can not install my printer on my Xubuntu.
At first, I had this problem (ie. I could find my printer, but got "internal server error" warnings when trying to install it), and as suggested I tried using the web interface at http://localhost:631
This does however not work, I can, as far as I can tell, install the printer, but it cannot print a test page (or anything else).
My procedure is as follows:
I go to http://localhost:631/admin and click add printer:
Then I select my printer among the presented options and in this case, and then I am presented with what appears to be a successful connection to the printer (as per the text in the field: connection, note that I have removed part of the address, which contains unique identification of my printer):
It does not seem that pressing "share this printer" has any effect, I have tried both with this option on and off.
After this, I am asked to select a driver, I have both tried finding my printer in the drop-down menu (see below) or using a driver (.dpp file) provided by the manufacturer (which obviously is a Linux version):
After this, I am asked for default options (these I don't consider relevant, so I won't show an image of that); finaly the installation should be done, and I go to the installed printer, try to print a test page, and nothing happens. After a while, a popup message appears telling me that the printer may be offline (it's not though), and the test page job itself simply claims that the state of the job is "unable to locate printer", see below:
Interestingly, this is most likely not a Ubuntu problem, as I have tried to install this printer in the exact same way on a desktop running arch-Linux and even got someone to try on their FreeBSD laptop (no success either), but the printer can be used from Windows 10 (on the same laptop as my Xubuntu), and I can also get it to work on my old MacBook (which is strange, considering that it also should be running cubs)