Toner Cartridges, Maintenance Kits and Parts

8 Items
Genuine Drum Standard Yield, 20,000 pages
Black Genuine Toner Cartridge High Yield, 6,700 pages
Black Genuine Toner Cartridge Standard Yield, 3,500 pages
Black Genuine Drum Standard Yield, 20,000 pages
Remanufactured Drum Standard Yield, 20,000 pages
The MFC 8640D uses BRT TN540 (BRT TN-540), BRT TN570 (BRT TN-570), XER 6R1424, CTC TN540 toner cartridges. BRT TN540 yields 3500 pages; BRT TN570 yields 6700 pages; XER 6R1424 yields 6700 pages; CTC TN540 yields 3500 pages.
BRT TN540 (BRT TN-540) prints 3500 pages, BRT TN570 (BRT TN-570) prints 6700 pages. Choose BRT TN570 (BRT TN-570) for high-volume printing (lower cost per page); BRT TN540 (BRT TN-540) costs less upfront for occasional use.
The BRT TN570 cartridge has an approximate yield of 6700 pages.
For BRT TN540 you can choose Genuine Brother (BRT TN540 (BRT TN-540)) or a Remanufactured option (CTC TN540) at a lower price per page, same 3500 page yield.
Yes — the MFC 8640D uses a replaceable imaging drum: BRT DR510 (BRT DR-510), XER 6R1425, CTC DR510.
On the MFC 8640D, a "Toner" message can come from either the toner cartridge or the separate drum unit. First reseat the toner cartridge and power-cycle the printer for 30 seconds. If the warning is drum-related, reset the drum counter from the printer menu; when the drum is genuinely worn, install a new XER 6R1425. For toner issues, a fresh BRT TN570 resolves it.