The line is from planing a grit on a board, and all the knives have the same knick. I'm not sure if you can offset one knife on that planer or not. I have the first version of that planer, but it's been so long since I've used it that I don't remember the inside details.
The texture on the surface is from chips getting thrown on the board, and being pressed into it by the outfeed roller. There might be something missing, or out of place that should direct the chips up and over the outfeed rollers. They are not from the knives.