For conducting a brother printer cartridge reset turn on the printer then again turn the machine off and then again turn it on further lift up the cover of the machine further press the “secure print” option and also the “cancel button” then press the + button a list of toner cartridges will appear go through that list and highlight the color that needs a reset then press “ok” in order to reset the color. For conducting the same reset on other colors repeat the same procedures.