We run into the same thing for copying money. It is legal to do it if it is monochrome or reduced or enlarged. We found with money, which I would figure would be the same kind of deal, you have to reduce less than 64% or enlarge more than 155%. Took a bit of messing with it to get it past, but it has to do with R/E and monochrome and you can get around it.
Good luck!