Bought some of this paper a few weeks ago. Began testing it last eve. There are black marks in straight, mechanical lines across the prints (11 x 14) that are not unlike inkjet printer marks where the rollers of the printer have become contaminated and produce straight, mechanical lines across the print, including the border areas (under the easel leaves). These black marks extend the the entirety of the width of the 11 x 14. They are not always in exactly the same place but generally so. There are several lines, not just one.