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I believe an Australia-only model. Though there're similar-looking, though differently coloured, one availible elsewhere as the HL-22xx series.
It's a cheap ($30 new in 2012) monochrome, laser printer, that I've got a lot of use out of.
I've always bought generics.
models I've found that work fine:
Works with CUPS just fine if you install brother-brgenml1.