Thank you very much for your efforts BobSongs. Thanks also to ubu69 for the useful information on getting a standalone network printer to function (i.e. one connected only to a hub/switch/router and not directly to any computer).
I am attempting to set up my router-connected Brother MFC410CN to print from Ubuntu and I am close; printing of test pages does not work however.
I think that the problem is that I can't modify CUPS settings through its web interface; it is disabled under Ubuntu 'for security reasons' and my attempts to enable it have been fruitless.
It's obvious that I want to select Network Printer from the Connection tab from the printer properties window. Do I want to select IPP or LPD though? I know that I need to enter an IP address somewhere; ubu69's instructions suggest that I want to select LPD but two text fields appear. You can't split an IP address over two text fields!
Any guidance would be greatly appreciated.