I have exactly the same problem on ubuntu 12.04 (x64). Moreover, when ubuntu upgrade to 13.10 (libsane upgrade to 1.0.23), the scanner does not work (the lamp can not be moved).
I have exactly the same problem on ubuntu 12.04 (x64).
Moreover, when ubuntu upgrade to 13.10 (libsane upgrade to 1.0.23),
the scanner does not work (the lamp can not be moved).