Cannot retrieve shared printers description

[JOBARAM]

Hi,
I need to retrieve the PC's Printers shared names, not the name of printers the PC uses.

I am using:
PrintService[] services = PrintServiceLookup.lookupPrintServices(DocFlavor.SERVICE_FORMATTED.PRINTABLE,null);

but the services retrieves the name of printers the PC uses and not the shared description.

How can I get the shared names??

Thanks

Jo