Printers served with nprinter

Hi, all.
Is there any way to know which user or pc is serving a queue printer
through Nprinter ???

I have some old dos stations booting with diskette onley to have a printer
attached with old nprinter program.

If by mistake or anything else someone take that diskette and boot other
pc, eventually this pc will
load the nprinter program and serve the printer, but this pc does not have
any printer attached to its paralell
port, so the jobs remains in queue forever. Am i clear??

Thanks in advance.

Leonardo