These printers use the TN810 Magenta cartridge:
Click On a Printer to View it's Cartridges
          Brother HL L-9410 CDN
          Brother HL L-9430 CDN
          Brother HL L-9470 CDN
          Brother MFC L-9610 CDN
          Brother MFC L-9630 CDN
          Brother MFC L-9670 CDN