Review on Be Green Ink 50F1H00 501H Toner Cartridge: Compatible Replacement for Lexmark MS Series Printers - High Yield, 1 Black, 5,000 Pages by Andrew Gomez

Ordered two of these toners. The first one worked - it seemed for a relatively short period of time, it's ok, it was cheap. I used a second toner and it didn't work at all. On examination, it was slightly different from the first, and the "chip" appeared to be missing. We tried reusing the chip from a previous toner but it still didn't work. Back to the original toner requirements as we had too many issues with toners from other brands.