Hi @Jon51,
Please see
Edit:
And yes, there is a driver for the printer in the AUR:
$ pamac search L2540
[...]
brother-dcpl2540dw-cups 3.2.0_1-4 AUR
Brother DCP-L2540DW CUPS drivers.
[...]
…so it can be easily installed with:
pamac build brother-dcpl2540dw-cups
But anything more than that, I’d recommend the above mentioned wiki article.
Also have a look here: