I have a new Sharp 5001n (multifunction printer\scanner\copier\coffee maker). I installed the drivers on the printer server, shared the printer out and configured it to default to Black and White. (the default is Auto which will print color or BW).
When the client installs the printer, the color mode gets set back to Auto as though you installed the driver locally. This negates the abililty to administer printing preferences on the server side to push them out to the client driver.