MFPs report more than a standalone printer: scanner, fax modem and finisher status all have their own MIB branches worth watching separately.
MFPs support the same Printer MIB as standalone printers for their print engine; add it in Linivo the same way as any other network printer.
Many MFPs also support the broader Printer/Finisher MIB extensions covering scan-to-email delivery failures and finisher (stapler, sorter) faults; enable this under the device's advanced settings if you need visibility beyond the core print engine.
A print engine can show healthy while the scan-to-email or scan-to-folder function is failing due to an expired credential or full network share; these often only show up in the extended MIB branches, not the basic status page.