Comment 3 for bug 848575

Solution is posted at http://welcome.solutions.brother.com/bsc/public_s/id/linux/en/faq_scn.html

NOTE:
This FAQ is verified using Ubuntu 11.10 Beta 2.
Operation may differ in the formal release of Ubuntu 11.10.

    Install the scan driver.

    Copy the following files under /usr/lib64/ to /usr/lib/.

For brscan Users:
/usr/lib64/libbrcolm.so.1.0.1
/usr/lib64/libbrscandec.so.1.0.0
/usr/lib64/sane/libsane-brother.so.1.0.7
/usr/lib64/sane/libsane-brother.so
/usr/lib64/sane/libsane-brother.so.1
/usr/lib64/libbrscandec.so.1
/usr/lib64/libbrcolm.so
/usr/lib64/libbrcolm.so.1
/usr/lib64/libbrscandec.so

For brscan2 Users:
/usr/lib64/libbrscandec2.so.1.0.0
/usr/lib64/sane/libsane-brother2.so.1.0.7
/usr/lib64/sane/libsane-brother2.so.1
/usr/lib64/sane/libsane-brother2.so
/usr/lib64/libbrcolm2.so.1.0.1
/usr/lib64/libbrcolm2.so
/usr/lib64/libbrscandec2.so.1
/usr/lib64/libbrscandec2.so
/usr/lib64/libbrcolm2.so.1

For brscan3 Users:
/usr/lib64/libbrscandec3.so.1.0.0
/usr/lib64/sane/libsane-brother3.so.1.0.7
/usr/lib64/sane/libsane-brother3.so.1
/usr/lib64/sane/libsane-brother3.so
/usr/lib64/libbrscandec3.so
/usr/lib64/libbrscandec3.so.1

For brscan4 Users:
/usr/lib64/sane/libsane-brother4.so.1.0.7
/usr/lib64/sane/libsane-brother4.so
/usr/lib64/sane/libsane-brother4.so.1