Review on 🖨️ E-Z Ink (TM) Compatible TN221 TN-221 Black Toner Cartridge - High-Quality Replacement for Brother Printers MFC-9130CW HL-3170CDW HL-3140CW HL-3180CDW MFC-9330CDW MFC-9340CDW DCP-9020CDN - 2 Pack, Black by Klassic Duncan

I have recently purchased several sets and they have worked great. I just bought a pack of two replacement black inks. Installed one and my printer made a very noticeable grinding noise. Second installed, same noise. Spent $71 on a Brother ink cartridge, installed and the printer worked great. I have a feeling that any mechanism that spins a reel on two ink cartridges can be of poor quality. In any case, they accepted the return and only had minor inconveniences, but if you hear a strange noise after fitting it could just be the cartridges. does not work as well as the branded cartridge you can get from Brother.