I don't know how Brother and other printer manufacturers manage to withhold cheaper replacement ink cartridges from consumers. I tried several replacements but the printer didn't accept them. They appear as empty or not inserted at all. I could just throw that stupid printer out the window, it's so frustrating. However, I persevered and found her. They worked for the first time in my Brother MFC-J6920DW. My brother recently emailed me notifying me of a firmware update. I won't install it for fear it will kill those cartridges! Brother and others simply overcharge for replacement ink. If their prices were reasonable, there would be no secondary market. They're just too greedy. I can't promise they will work on your Brother printer but I've had great experiences.
HP 902XL Magenta Ink Cartridge for 🖨️ HP OfficeJet 6900 & Pro 6900 Series, T6M06AN
11 Review
Brother TN436BK Super High Yield Toner, Black - Retail Packaging
11 Review
4-Pack Toner Bank Compatible Replacement for Brother TN760 TN-760 TN730 TN-730 Black Toner Cartridge for MFC-L2710DW DCP-L2550DW HL-L2350DW HL-L2390DW MFC-L2750DW HL-L2395DW HL-L2370DW Printer Ink
11 Review
Cartridge NV Print CE285A for HP LaserJet Pro P1102/P1102w/M1132/M1212nf/M1217, black
13 Review