I'm attempting to share a USB attached printer connected to one 12.04 machine to another 12.04 machine (and a 10.04 machine) on the same network. The printer does not show up and cannot be found as a network printer by the second machine.
On the first machine, I have "Shared" , "Enabled", and "Accepting Jobs" selected in Printer Properties, with "Access Control" set to Allow printing for everyone and a right click on the printer has "Shared" selected.
However printer properties shows a message "Not published. See server settings.". I don't know what settings it is referring to.
Note if relevant the print server in this case was installed as a 12.04 Beta and then upgraded when 12.04 was released.