If the ink is compatible, there should be a chip to trick the printer into thinking it's using genuine Brother ink. Every time I print I see this and get a message on the printer. It prints, but it's not a 100% correct replacement.
Inkjet MFP HP Ink Tank Wireless 419, color, A4, black
52 Review
HP 62XL Tri-color High-yield Ink, Compatible with HP ENVY 5540, 5640, 5660, 7640 Series, HP OfficeJet 5740, 8040 Series, HP OfficeJet Mobile 200, 250 Series, Instant Ink Eligible, C2P07AN
12 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