After hours on the phone with Xerox, I got to a technician who knew what he was talking about and said that the PLC5 and 6 drivers for this series of Xerox machines do not work with Word 2007 or Word Perfect on Windows 7 64-bit for some reason, changed to the PS driver and was working correctly and printing fine. This may be helpful for that rare occasion when someone else has this mix of OS and Printer.