Toner Reset Instructions
BROTHER HL-L2440DW, L2370dw PRINTER
BROTHER TN2570XL RESET

1. OPEN COVER
2. PRESS TOGETHER [GO + BACK] BUTTON AND QUICKLY PRESS "BACK" BUTTON
TNR-STR (APPEARS ON SCREEN)
3. PRESS "+" KEY TWICE 
TNR-HC WILL APPEAR ON SCREEN
4. PRESS DOWN ARROW OR "-" KEY TO RESET
CLOSE THE COVER

ALL DONE.