If you want to use specific printer settings, when you print from InterformNG2, then you need to change the settings for the printer used in Windows.
You can set the settings for a printer in two manners:
1. You can setup the default printer settings globally for all users.
2. You can also setup the printer settings for the current user.
How to setup the default printer settings for all users
You can setup the default printer settings for all users if you edit the printer settings by selecting the Advanced tab and then setup the default settings:
How to setup printer settings for a specific user
The global settings above can be overwritten per user. If you setup the printer settings via the General tab (and Preferences) , then the settings are only for the current user and that will overwrite the global default settings:
So again: If you have a printer setup for a specific user and you want to use that in InterformNG2, then you need to ensure, that the service is running under the same user as used when this printer setting was done.