LV receipts have their special monogram pattern lined up in a row near the bottom (or top? or both? can't remember lol, but definitely the bottom). I've never tried photocopying my receipts, but I *think* that the monogram design would NOT appear if you do copy it. However, sometimes when the store runs out of their special LV paper, then they just use plain regular paper and tear it in 1/2 after the print job. I have 2 receipts like that, so I know that it CAN happen.