the original printed font moves down slowly from the top. The space at the bottom of the genuine product is less than that of the fake product. There is a lot of space at the bottom of the fake. The printed font is darker, and the color of the fake packaging box is darker than the genuine one. Whether at the top or at the bottom, the buckle of the real hinge is shorter than that of the fake hinge. This is a very subtle gap, and it seems that the cottage manufacturers are intentional. The cover of genuine inner paper is a complete square white cardboard, while the fake one has a gap on the square cardboard. The LOGO of the genuine manual is black, the fake LOGO is black with a little brown, the fake font is heavier, and the position of the folder index is marked wrong.