Brother
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For 64 bit models
sudo mkdir /usr/lib/sane
sudo ln -s /usr/lib64/sane/libsane-brother3.so /usr/lib/sane/libsane-brother3.so
sudo ln -s /usr/lib64/sane/libsane-brother3.so.1 /usr/lib/sane/libsane-brother3.so.1
sudo ln -s /usr/lib64/sane/libsane-brother3.so.1.0.7 /usr/lib/sane/libsane-brother3.so.1.0.7
sudo ln -s /usr/lib64/libbrscandec3.so /usr/lib/libbrscandec3.so
sudo ln -s /usr/lib64/libbrscandec3.so.1 /usr/lib/libbrscandec3.so.1
sudo ln -s /usr/lib64/libbrscandec3.so.1.0.0 /usr/lib/libbrscandec3.so.1.0.0