Resetting your Brother TN3170 / TN 550 Toner Starter Cartridge

You will need to reset the flag gear in order to reset the cartridge. The printer displays a ""toner life end"" message when empty, or if no reset gear is detected after refilling.

OEM supplied Brother TN 3170 / TN550 & TN 550 starter cartridges* do not have a reset flag gear installed. A reset gear must be installed in order for the printer to function properly, once the cartridge has been refilled with toner and re installed in the printer.

*A starter cartridge is the cartridge that came free with your printer.

Qty per order: 1