Brother TN-421BK is an original black toner cartridge made for compatible Brother color laser printers. It delivers an estimated yield of about 3,000 pages based on ISO/IEC 19798. Verified compatible models include HL-L8260CDW, HL-L8360CDW, MFC-L8690CDW, MFC-L8900CDW, and DCP-L8410CDW. The drum is sold separately, so this item replaces only the toner cartridge. It is a straightforward choice for customers looking for the genuine TN-421BK supply for a supported Brother printer.
Compatibility
HL-L8260CDW
HL-L8360CDW
MFC-L8690CDW
MFC-L8900CDW
DCP-L8410CDW
Frequently asked questions
Is this an original Brother toner cartridge?
Yes. This is the genuine Brother TN-421BK toner cartridge.
Is the drum included?
No. The drum unit is separate; this listing is for the toner cartridge only.
Which printers are compatible?
Verified compatible models are HL-L8260CDW, HL-L8360CDW, MFC-L8690CDW, MFC-L8900CDW, and DCP-L8410CDW.
What yield should I expect?
The expected yield is approximately 3,000 pages, measured in accordance with ISO/IEC 19798.