A driver is a translator. It converts the complex commands from your operating system (e.g., "print this PDF in duplex, collated, with a staple in the top-left corner") into a language the DocuCentre-V 5070 understands.
There it was. FX_DocuCentre-V_5070_Alt_5.2.0.14.inf fuji xerox docucentre-v 5070 driver
The drivers are "Package Aware," which simplifies deployment across networked environments. Automatic Installation: A driver is a translator
: Users can tap, double-tap, drag, and flick through functions directly on the device's touch screen. "print this PDF in duplex