This is awesome! I teach sewing and sometimes showing students how to do things is difficult, like using the needle threader and trying to explain there is a tiny hook that goes through the eye of the needle......
This is a generic manual from Brother whose sole purpose is to just acquaint you with a computerized machine. It's very clear and the pictures are awesome. If you are having difficulty with something, or don't quite understand something, this guide could be really helpful to you.
It doesn't address just one type of machine. For example, to change a needle on one machine model the screw is on the right, on another model the screw is on the left, it shows both examples and how to it.