Brother laser printers are easily some of the best in the world.
They can run through an amazing number of prints without any real difficulty because of the outstanding quality of their toner cartridges.
They have perfected the way the polymers that they use are produced so that they will come out better on the page when it is all melted together.
Of course, every laser printer, from Brother through HP operates in the same basic way: a laser controls the charge on the rotating drum.
Then one of the four toner cartridges are used to attach its particles to the selected sections of the drum.
This is then repeated with each color until the pattern of the whole page is there in reverse.
Then the paper is applied to the outside, and the toner is melted onto it.
The best part of this is that it gives a very exact, sharply detailed print.
The only restriction on quality is how much toner the Brother cartridges can hold.
It's no good if a print comes out looking funny because one of the colors ran out in the middle of it, so Brother makes its cartridges as big as possible, in order to put that threat off as long as possible.
Since Brother toner cartridges basically use plastic, there's no real risk of the print soaking through to the other side.
It will just stand solidly on the side it is supposed to so that the other side can get its own print.
That way, both sides get to show off an outstanding print.