Checking the Drum life

You can see the machine’s drum life on the LCD.
1
(For MFC-7340) Press Menu, 4, 3.
(For MFC-7450) Press Menu, 5, 3.
(For MFC-7840N) Press Menu, 6, 3.
2
Press OK.
You can see the remaining percentage of drum life.
3
Press Stop/Exit.