Header may be the wrong description. If you open the file in Photoshop and look at the file info, you'll find Creo specific information that the output software looks for.

I believe normal Prinergy one-bit TIFF output has different header information than an industry standard one-bit TIFF. We've encountered this before when when we configure our workflows to drop TIFFs on EVO or Print Console. That's why we developed the Kodak TIFF Catcher Connection kit for folks who want to do this sort of thing.

I suppose we could do the same thing in reverse, take a standard one-bit TIFF and automatically convert it to Kodak format. Just a thought.