[Samba] Long printer name in CUPS not appear in Samba

[HB]

Hi 

I have a Samba 3.2.7 acting as a PDC for files and printers sharing. 
All the print configuration is ok and network printers shared by Samba and managed by CUPS are working. 
Except that if I put a printer name longer than 15 characters in CUPS , it is not seen at all in samba . With less that 15 chars, it
is ok, but since this is also the name that appears as the share , it could not be very practical for endusers . 

Is this 15 chars limit a normal behavior ? Is there a way to bypass it ? 

Thanks in advance 

Regards 

Henri