x32 driver on x64 print server

I have a x64 print server and my clients are x32 machines. I successfully
installed the print driver on the server with a x64 driver. Then added the
x32 driver successfully. I set the printing defaults and printing
preferences to default to greyscale.

The problem that I am having is that I have a color Konica-minolta and want
the default to be set at greyscale. When I install on the x32 machines the
default reverts back to color. Yet, when I install on x64 machines the
default is greyscale.