librenms-librenms/includes/polling/os/ricoh.inc.php

<?php

// SNMPv2-SMI::enterprises.367.3.2.1.1.1.1.0 = STRING: "Aficio MP 3350"
$hardware = trim(snmp_get($device, '1.3.6.1.4.1.367.3.2.1.1.1.1.0', '-OQv', '', ''), '" ');

// SNMPv2-SMI::enterprises.367.3.2.1.1.1.2.0 = STRING: "1.15"
$version = trim(snmp_get($device, '1.3.6.1.4.1.367.3.2.1.1.1.2.0', '-OQv', '', ''), '" ');

// SNMPv2-SMI::enterprises.367.3.2.1.2.1.4.0 = STRING: "M6394300657"
$serial = trim(snmp_get($device, '1.3.6.1.4.1.367.3.2.1.2.1.4.0', '-OQv', '', ''), '" ');