Implicit Classes of CUPS and Drives Setting in KPrinter

[Michele Magi]

Hi! 
 
I want use 2 server CUPS that point at the same network printer, using the
Implicit Classes in CUPS. 
The print works fine, but in the printer settings of Kprinter, i don't have the
subwindow of driver settings. If I stop 1 of these servers, the driver settings
subwindow there is. 

There is somebody that can help me about this problem? 

Tanks 
Best regards 
 
Michele