Hi Pam, It seems that as long as the printed page dimensions are spot on you shouldn't have a problem.. I have a printer that prints one direction short 1/8". I never realized it, I thought all along it was the seam allowance with my sewing.. I no longer print patterns on that printer...I always leave a little extra fabric(1/8"- 1/4") on the pieces that have an outside edge that way if the block doesn't measure up I can trim to the correct size when squaring up.
Some of the ladies here use a variety of papers, copy, parchment, freezer, newsprint.. I use the Dollar Tree doodle Pad & cut it down to copy print size.
It's the stitch length that's important. 1.5 is the norm.. too tough for me to rip out so I use 2.0 stitch length. I know, I know I shouldn't be ripping out to begin with but I'm a nut about points & intersections.