New Era Toner &copy; - (4pk) Toner Reset Gear for use in Brother TN-331, TN-336 (TN331, TN336) Cartridge for HL-L8250CDN, HL-L8350CDW, HL-L8350CDWT, HL-L9200CDW, HL-L9200CDWT, MFC-L8600CDW Type: Toner Reset Gear Part #: TN-331, TN-336 (TN331, TN336) Included: 4 Reset Gears Info: This is for the Starter Cartridges that comes with the printer. You will need 1 "Reset Gear" per cartridge. Image is for reference only... The reset gear will depend on your model number.