you did a great job. Finally I could get the Samsung SCX-3200 running. With Ubuntu 12.04 LTS I had no success using the Unified Samsung driver; I always got the message "rastertosamsungpl failed" - "rastertosamsung general protection ip…" .. no idea what happend, with Debian Sid there was no problem.
But If I had known before that there is an alternative driver I would have used it earlier ! Ubuntu provides the package with apt-get install splix.
Thanks for your work !