print OUT "\n### Printers\n\n";
-$sth0 = $dbh->prepare("SELECT m.name FROM machine m, printers p " .
+$sth0 = $dbh->prepare("SELECT UNIQUE m.name FROM machine m, printers p " .
"WHERE (p.type = 'DORM' OR p.type ='CLUSTER') " .
"AND p.mach_id = m.mach_id AND m.status=1")
|| exit $MR_DBMS_ERR;