/usr/lib/x86_64-linux-gnu/sane/libsane-umax1220u.so.1 is in libsane1 1.0.27-1~experimental3ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/sane/libsane-umax1220u.so.1.0.27