Did you download that file I attached to my last post? It's a Pulsonix PCB file and you should be able to open it by double-clicking it. Alternatively, open it from within Pulsonix.
My paper printout would have been at 600 dpi (default printer setting). I only use 1200 dpi (with the HP Premium Inkjet Transparency setting) when actually creating the artwork on the JetStar film, I have a special setting for the printer in the CAM/Plot output settings. The film will always be superior to ordinary paper, because the latter absorbs the ink. If I used the paper used for printing photographs at 1200 dpi, the printout would probably be about the same as the Jetstar.