/usr/lib/sane/libsane-hpaio.so.1 is in libsane-hpaio 3.14.6-1+deb8u1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/sane/libsane-hpaio.so.1.0.0
/usr/lib/sane/libsane-hpaio.so.1.0.0