That isn't a printer model, it is a subclass of printers made by FujiXerox (Not Xerox) and sold outside of North America (The region this forum is supporting.
To get a driver, you must go to a FujiXerox site, you will also need to use the actual model number, the best link I can provide is this one which will take you to the drivers page for FujiXerox where they list the DocuCenter IV printers, you will then need to pick the appropriate model from the list.
Please I need the driver for the Xerox D-D020 Printer, I do not place it anywhere. Thank you.