I found that it is not so easy to install drivers that actually work when Xerox Standard Accounting is setup. If you install a driver normally, when you try to enable accounting either the Apply button will be grayed out or the driver will not 'Keep' the enable choice for Accounting.
With 2nd level engineer David's help we were able to find a solution. Hope this helps someone,
Do not use Smart Start or the Xerox User Interface Drivers
For Win 10:
1) Download and save the Xerox Global Print Driver PCL6, unzip and note where you have saved it. (I always create a folder on the local drive named Xerox)
2) Go to Printers & Scanners and start add Printer Wizard.
Select 'The Printer that I want is not listed"
Select 'Add a local or network printer with manual settings", use an existing port and drop down select the IP of your printer.
3) Select 'Have Disc' and browse to the folder you have the Global Print Driver saved in. Open the UNIV folder and select the UNIVxxxx.inf file.
4) Continue and finish installing driver. When you print a test page the Account Code popup should appear and you are finished.
This is installed exactly the same way as Win 10 , BUT , YOU MUST TURN OFF BI-DIRECTIONAL COMMUNICATION OFF
Don't attempt to print a Test Page at this point: it will fail
Go to Printer Properties/ Configuration tab, and change from Automatic (Recommended) to Off
Now print a Test Print and your Account Code window will open.