Owner job in a cups printer whithin samba

[Artabros]

I've a printer installed with Cups and configured as a Raw Printer. I
share it with other windows-system computers through Samba. The owner's
job is the samba user. Is it possible to change it for its Netbios Name?
I've seen the samba source and though i found the variable sent to cups
(domain logon user) i can't find the Netbios Name variable. Where can i
find it and how can i substitute it? Is there any other easier way to do
it? Thanks in advanced. 

  Looking forward to hearing from you soon!!