20 Multipack XL cartridges compatible with Brother LC-121 LC-123 (8x BK + per 4x C / M / Y) for Brother DCP-J752DW MFC-J870DW J6920DW J4110DW J4410DW J4510DW J4610DW J4710DW (Electronics)
When I gave these cartridges for the first time in my printer, they were not recognized. Luckily I had since the originals from Brother. I wrote the company and told them my problem, they wrote back immediately, I should turn the printer off and then