Dos cosas que encontré googleando un poco, fijate a ver si alguna de las dos te lo soluciona:
1. open Devices and Printers
2. right click on the Xerox printer
3. choose Printing preferences
4. set Paper Size to A4 (was Letter in my case)
I think, this is fault of Xerox driver - after printer installation, it shows A4 in printing dialogue, but Letter in Printing preferences.
y después:
1. control panel
2. devices and printers
3. right click on xerox phaser and select printer properties
4. go to advanced tab
5. select "Print directly to the printer"
6. ok and close all open windows.
Fijate a ver si funca.
Saludos