Payment Run Media defualt printer

I have been asked to change the default printer for payment runs. Most of our companies use a variant enterred on the payment media tab next to the program name, and this is where I normally set it.

However, the Co Code I need to change doesnt use a variant (its blank), so I don't know where the default is set for that Company, and can't find anything obvious in the settings or even in the IMG.

Is there another place to set a default printer if a program variant is not used?

Thanks

Graham