"Read the fine print!"0.5 starson by jvabsher
Pros: It's cheap and prints OK.
Cons: This is a scam.
Summary: I just ran out of toner on my HL-2270DW and purchased a compatible replacement from Amazon.com for approximately half of what Brother asks for the exact same thing. When I inserted the replacement cartridge the toner light stayed illuminated indicating it was out. Rechecking the installation repeatedly to no avail, I had to resort to calling Brother.
They went through a bunch of, what sounded to me like, canned responses to my questions. And when I nailed them down and insisted on straight answers, they told me they put a proprietary switch inside their cartridges to prevent any other manufacturer's product from working. This also prevents their own product from being removed and reinserted just in case anyone has any bright ideas about refilling the cartridge.
I've had a Brother MFC-7420 that has served me faithfully for many years, and has yet to see its first Brother toner cartridge. I have never considered purchasing or recommending any printer other than Brother for that very reason. But after hearing this from their own mouths (I called twice and got the same story from different people) I will throw this printer in the trash and never buy anything from Brother again.
It wouldn't be so bad if they told you this up front, before you bought the printer; or if any of the multitudes of "compatible" cartridge vendors told you their products wouldn't work. But then I guess they figure that would cut down on their sales.
I'll tell you this... It's cut the hell out of mine!