Comment 2 for bug 596116

The device you have is supported by the latest driver in libfprint0:
http://reactivated.net/fprint/wiki/Supported_devices

Could you install the latest version from the fprint PPA, as described here and report back your results:
https://bugs.edge.launchpad.net/ubuntu/+source/libfprint/+bug/657017/comments/2

Also read carefully the notes on the PPA page:
https://edge.launchpad.net/~fingerprint/+archive/fprint