Same happend to me right now when adding a Brother HL-5340D. I downloaded the ppd file from http://welcome.solutions.brother.com/bsc/public_s/id/linux/en/download_prn.html#HL-5340D and provided it to system-config-printer. When I click on "Apply" I get the same "CUPS Server Error" dialog, with the text "server-error-internal-error".
$ cat /etc/issue Ubuntu 12.04.1 LTS \n \l -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to system-config-printer in Ubuntu. https://bugs.launchpad.net/bugs/254202 Title: server-error-internal-error while adding printer Status in “system-config-printer” package in Ubuntu: Confirmed Bug description: When adding a networked lexmark E120N printer, after specifying the PPD file, I see a "CUPS Server Error" dialog, with the text "server- error-internal-error". This stops me from adding the printer. This is in Ubuntu Hardy. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/system-config-printer/+bug/254202/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

