The RF is a later versions of the RE with improved HD take-up, rear media clamp lever and faster print speeds than its former cousin. Roland has also modified the ink bay from vertical to front-loading horizontal w/ecosol max 2 inks. RF can also be operated from iPad and has test prints in scan direction to save media during cleanings. RE pulls ink from both CMYK carts at one time and RF pulls from one and allows hot swaps while printing from the other.