My Brother HL-2140 laser printer still works. Probably because I don’t use it very often. Don’t think I’ve changed the drum. Changed the toner once. Third party toner is in it, looks like that lasts a long time too.
Printed out the thing that shows how much toner is left. The drum won’t need to be replaced anytime soon. The toner might. Just click the button on the printer three times. I’m using Windows though, so I could probably get the info in Windows somewhere.