post_install() {
    getent group scanner >/dev/null 2>&1 || groupadd -g 96 scanner &>/dev/null
	/bin/cat <<THEEND
NOTE
----
Add your user to group 'scanner' to use scanner devices.
THEEND
}

post_remove() {
    if getent group scanner >/dev/null 2>&1; then
        groupdel scanner
    fi
}