NOTICE: you should have lexm's toner cartridges with chip in your printer, then you can refill our toner powder in them
Compatible with C3426 C3426dw MC3426 MC3426adw C3326dw MC3224adwe MC3326adwe C3224dw MC3224dwe Resetting the supply usage counters [the chip from the previous toner cartridge]:From the control panel, navigate to: Settings > Device > Maintenance > Config Menu > Supply Usage And Counters For non-touch-screen printer models, press to navigate through the settings. Select the supply counter that you want to reset.