The RF640 (which we have) is a VS without an onboard (contour) cutter and with dual cmyk cartridges. The head is more expensive but it is much faster and has a better media handling system... with certain limitations. It takes longer to load and reload the media- my solution, as we use 90% one media,
was to add a separate roller system behind the OEM one- when we need to print a different media it goes on this one and feeds over the OEM
media (see picts). Routine maintenance is easier- only one head/dock to clean but the wiper/scraper a bit harder to do a good clean on. Gene