The Xerox Phaser 6125N printer is a great piece of work, however it is not supported by default under Linux (Ubuntu 11.04 x64). 

= Getting it to work =

You can how-ever use little trick to adjust the  ''Fuji-Xerox DPC525A'' CUPS ppd in such a way that is also works fine for this printer. As described over here http://ubuntuforums.org/showthread.php?t=1205253. 

= New Features =

This steps how-ever does not alter the ppd file in such a way that it is automatically detected, the attached files have two new features:
1. provide autodetect support for both USB and UTP printing.
1. Set the feeder to 250 pages by default, instead of none.
1. Removed the non-standard and unsupported FXPostCard.

= Download =
For the deb folks:
1. Download [raw-attachment:cups-xerox-phaser-6125n-1.0.0.deb]
1. $ sudo dpkg -i cups-xerox-phaser-6125n-1.0.0.deb

For the non-deb folks:
1. Download [raw-attachment:cups-xerox-phaser-6125n-1.0.0.tar.gz]
1. $ sudo tar -C / -pxzf cups-xerox-phaser-6125n-1.0.0.tar.gz