Hi due to reasons beyond our control we have had to roll out printers with the drivers installed locally via TCPIP. The default setting is colour and one sided printing.
I have been trying to create a PowerShell command to change to mono and duplex printing.
Get-PrintConfiguration -PrinterName "Post Room 1" returns the following:

I then use this command: Set-PrintConfiguration -PrinterName "Post Room 1" -Color $false -DuplexingMode TwoSidedLongEdge
This should change the config of the driver and yes, Get-PrintConfiguration -PrinterName "Post Room 1" returns the following:

All good, however the driver doesn't reflect:


How do I get the driver to take on the changes that are being reflected in the PowerShell script?