I'm using scissors to cut the transfers. I don't clean them regularly for sure. Maybe that's the problem. But I don't understand why it only happens on certain designs and not others; I use the same scissors. I'll break out the alcohol swabs. Thanks guys.

No, none of that is going on. There are no outlines on the image.

<t>I am having trouble with a black line appearing at the outside edge (the edge away from the handle) of my transfer paper when I'm pressing my mugs. Funny thing is that it only happens sometimes and then only on particular designs. But when it happens, it happens on a pretty high percentage of my ...