I have a HL-5250DN that's been going since 2005. The paper tray died a few years ago, but at this point I don't print more than a dozen pages a year so I just use the multipurpose feed tray on the front. I think the drum is down to about 30% of its life remaining, but that probably equates to about 10k pages so I don't expect it to give up any time soon.

I have had the Brother MFC-L2710DN for close to 4 years now. I have had not a single problem with it. Super easy to use and maintain. 90% of the time it's completely turned off. Once left it unplugged for 5 months. Turned it back on and worked without a hitch.

I use Brother DCP L-2540 DW

bought for $100 eight years ago -- I took it with me when I moved countries -- still going strong. toner refills available from third parties on Amazon for very cheap.

features

wifi + ethernet

laser monochrome printer with 2-sided duplex printing

flatbed scanner & automatic document feeder for scanner

no duplex for scanning (you will have to manually flip over the source pages if you want to scan the back side too)

HL-L2375DW has been working great for us for a while now. It cost about €125 new and we pay €30 for toner cartridges that do 1400 pages - so about 2¢/page. Wifi, ethernet, duplexing.