How do you reset the toner on a Brother HL-2270DW?
Brother HL-2270DW - Reset Toner Cartridge
1. Ensure the printer is turned off.
2. Open the printer front cover.
3. Hold the Go button while turning the printer on.
4. When the Toner, Drum, and Error LEDs are on and the Ready LED is off, release the GO button.
5. Press the Go button two (2) times.