It's a built-in integration: https://www.home-assistant.io/integrations/brother. For me, Home Assistant automatically detected the printer on the network and showed a notification in the app / on the site about a new device being found.

It provides pretty much all the data you'd want... Remaining drum life, toner level, page count, status (sleeping, idle, printing, paper jam, out of paper), and I think a few other things.