Getting Multifunction Printers to scan under Linux can be a bit of a pain. The Samsung SCX-3400 I had to install recently was no exception.

Here are the necessary steps I had to perform:

1. Ignore all Samsung Provided CD’s and downloads. They do not work under Oneiric Ocelot (11.10)
2. Add Samsung Unified Driver repository http://www.bchemnet.com/suldr/smfpv3.html
3. Install Samsung drivers and libsane-extras
4. Edit sane configuration files

vim /etc/apt/sources.list
#add the Samsung Unified Driver Repo
deb http://www.bchemnet.com/suldr/ debian extra

wget http://www.bchemnet.com/suldr/suldr.gpg
apt-key add suldr.gpg
apt-get update
apt-get install samsungmfp-data samsungmfp-driver samsungmfp-network samsungmfp-scanner samsungmfp-configurator-data samsungmfp-configurator-qt4 libsane-extras

The following sane config files need to be modified (add lines)