I've looked at these posts and wondered if I was understanding correctly.

The OP was on about printing NEGATIVES  -  right.

You say  - but you can scan it to a positive file -   that ties to my thinking that you need a POSITIVE from which to print   [e.g the Massey combine from Rusty]

I had a scanner that produced jpeg files - it would scan the old 35mm colour slides, and also the strips pf negative film that came form the likes of Kodak when you had them processed.

I did hundreds from the days of my youth, now stored on my computer.

Lent it to someone to use, and it has not returned!    Memory of who I lent it  to is also gone and not returned !!