I have two Brother HL-L2340DW printers, both ran out of toner almost the same day. I took this 4 pack because I figured it would be a while before I got the "famous brand" version. Rather than just capturing the first two, I picked two at random (to make sure there was an immediate possibility of fraud). Having skipped 42 and 107 pages through two (double sided) I can honestly say I'm amazed at the quality. No streaks, stains, fading etc. Very impressive. I will provide an additional review after testing these two toners and update information on the other two.
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