[Samba] smbspool problem

[Pier Paolo]

I have to print on a windows' shared HP_Officejet printer.
If i write
     smbclient "\\\\172.21.33.128\\Stamp.Hp" -P
and then
    put file.txt
it prints the file.txt, but i need to use smbspool (to configure it with 
cups),
an if i write:
    smbspool smb://172.21.33.128/Stamp.Hp 1 1 1 1 1 pippo
i recive this error:
ERROR: cli_session_request() failed...
ERROR: Unable to connect to SAMBA host, will retry in 60 seconds...: Success

 what is it ?
can anybody help me?

thanks
Pier Paolo