Not all printing defauls applying

[Arcath]

I have a server 2012R2 print server sharing a few printers to Windows 7 clients. One of my printers is a MFP, specifically a Konica Minolta Bizhub C280 which I need to apply some settings to. I've used Printing defaults to:

 

• Set the Output to 1-Sided
  
• Set the colour mode to Grayscale
  
• Prompt for a device user to print as
  
• Hold jobs until the user is at the device
  

 

All apart from the last option are applying successfully. Everything just comes out the moment you press print and its causing loads of issues.

 

I really can't see why it would apply some but not all settings from the defaults.