Xerox gave support of the HDI driver to AutoDesk (the company that makes AutoCAD) a LONG time ago… possibly 2007. AutoDesk has been trying to get rid of the HDI driver for over a decade…evidently without success.
Since Xerox dropped support for them before we had 600 dpi printers … or as we were supporting 600 dpi printers the HDI drivers only support 400 dpi printers, but the Accxes server should handle it just fine.
Since AutoDesk supports the HDI driver, it should be on the AutoCAD install disk and be part of the AutoCAD installation. Unfortunately it is probably a driver labeled for the 8830/8825. Here is a recent web page from AutoDesk about Xerox drivers
To configure Xerox drivers…this requires that they be loaded on the your system if you can’t find them you should ask AutoDESK where they are because they are clearly supported.
Xerox put a stop order on these devices in November 2011. Xerox did not forget the device, they stopped developemment for it, and in the case of the HDi driver, it appears AutoDesk did as well. Xerox in no way supports Autodesk directly, while they may help out on an issue printer side/configuration wise, if the issue is AutoCAD, there is nothing they can do.