[cups] Problem in printing

[Servizio WL IT]

Hi everyone,
I'm a newbie for this mailing list but a long time linux worker.
In my company there is a Windows Domain and nowadays there is a Windows 2003 Server whose role is Printer Server.
Now I'm changing it to a linux machine.
We have some printers, in particular (apart for the ones from HP) we have 2 Develop ineo.
One is an Ineo+ 220, the other is an Ineo+ 35.
I can see the printers in the list (both via cli using the lpinfo -l -v command and via web).
I can also add and configure them but when I print no paper is really printed.
Moreover I can see in the web console that the printer is idle and the document has been sent to it.
My configuration is:
http://pastebin.com/XvR00Ku3
My lpinfo -l -v is here:
http://pastebin.com/A9hMUQzK
My error_log is here:
http://pastebin.com/k5e2fSeZ
My access_log is here:
http://pastebin.com/ibCfQf62
And, finally, my page_log is here:
http://pastebin.com/3K1eBqbh
As I said, unfortunately, no paper is exiting from my printer, but I can't get any error...
Can anyone help me?
Thanks in advance.
Regards,
Pietro

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