sides

I have a Lexmark C510 printer that prints fine, except for the fact that it prints small coloured lines all over the sides of the printed page. The lines appear on exactly the same places on every page. There are also some lines printed on different spots closer to the middle of the page. What...

Are most softcover books cut on three sides, or are the sheets usually cut precisely beforehand and then just the one edge trimmed after binding? How about most magazines? Booklets? How widely used are device like http://www.challengemachinery.com/products/cmt330.htm ? What are the...