Hello and welcome to Apple Discussions.
The queue address cannot start with LPD. The UFR2 driver will have a queue URL of;
cntdbmu://MCD UFR2_LPR/printer_name/lpd://ip_address_ofprinter
So if you have LPD then you have either selected the wrong driver name in the Print Using menu or the installation of the UFR2 driver was incomplete.
With regards to the Print Using menu, the name you need to select is 'Canon iR C3080/3480/3580 UFR II (UK)'. If you selected 'Canon iR C3080/3480/3580' then this would indicate that you also have the Canon PPDs installed and this selection will show 'lpd://ip_address'. However this will error if your C3080i does not have the PS kit installed.
If you did select the correct printer name that shows UFR II and the queue does show the URL as above for the UFR II driver then open Print & Fax and select the C3080i. Then open Options & Supplies and select the Utility tab. Then select Open Printer Utility. This will open the UFRII Printmonitor utility and if the C3080i and the Mac are able to 'see' each other then you should get a window showing the internal print queue of the C3080i. If this does not happen and you get an error then please reply.
Pahu