Important: A "reset gear" is required for TN350 STARTER CARTRIDGES* (sold separately). This gear is only needed if you are refilling STARTER cartridges for the Brother TN350, since the starter cartridges don't always have this reset gear installed. The printer displays a "toner life end" message if no reset gear is detected. A reset gear must be installed on any used TN-350 starter cartridge in order for the printer to function properly once the cartridge has been refilled and re-installed in the printer. *A starter cartridge is the cartridge that ships free with your printer. If you purchase the cartridge separately to the printer, you will not require this gear

Refilling your toner cartridge with the UNI-KIT takes less than 5 minutes! Printing quality and print yield (pages printed) will be almost 100% the same with your first refill as your original cartridge! We guarantee your satisfaction or your money back!