Review on 🖨️ Uniwork Black Toner Cartridge Replacement for Dell E310dw P7RMX PVTHG 593-BBKD E310 E514 E515 - Compatible with E310DW E515DW E514DW E515DN Printers - Includes 4 Cartridges by John Roby

I was hesitant to buy them as they appeared to be genuine because you can get four cartridges for less than a brand name price. Pulled mine out, pocketed one of these and it went back to printing. I can't tell any difference from the original. I have printed over 800 pages so far and the quality is the same as the first page and the same as the original cartridge. Others say it prints fewer sheets than the original. Even if that happens, you will still come out on top as there are 3 rounds left. I would definitely buy them again.