The original printed font slowly moves down from the top. The genuine ones have less space at the bottom than the fake ones. The fake ones have a lot of space at the bottom. The printed fonts are darker, and the fake packaging box is darker than the genuine one. Whether it is the top or the bottom, the buckle of the real folding page is shorter than that of the fake folding page. This is a very subtle gap, and it seems that the copycat manufacturers are intentional. The genuine inner paper cover is a complete square piece of white cardboard, while the fake one has a gap in the square cardboard. The LOGO in the genuine manual is black, while the fake LOGO is black with a hint of brown. The fake font is heavier, and the position of the index clip is wrong.