Have you tried using a more generic Xerox driver like the Multi Model Diver? This is a nice driver and may make a difference. Also if you delete and re-add the same model driver you need to fully remove all the driver files via the Console. One of the driver files could be corrupted. If you try the Multi Model driver you don't need to worry about that as it will install and use different driver files.
Running Windows 7 64 bit and Excel 2007 in a government network environment. When attempting to print a spreadsheet, I go to print preview, then attempt to go into page setup. This crashes Excel every time. I have uninstlled and reinstalled the printer on a local TCP/IP port using every driver I could find on the Xerox website. None of the drivers makes Excel stop crashing when attempting to use the page setup feature. I have installed and uninstalled it via the print server. If I change the default printer to ANY other printer on the network or installed locally, there is no problem going into page setup in Excel. I have used many suggestions from many different websites with no joy. Not sure what else to try. Any suggestions would be greatly appreciated!!!