Brother MFC-9420CN - Operation Check of LCD (Function Code 12); Operation Check of LCD (Function Mode 12)

8-12 Confidential
8.1.4.7 Operation Check of LCD (Function code 12)
 Function
This function allows you to check whether the LCD on the control panel works normally.
 Operating Procedure
(1) Press the 1 and 2 keys in this order in the initial stage of the maintenance mode.
The LCD shows.
(2) Press the Black Start key. Each time you press the Black Start key, the LCD cycles
through the displays shown at right. The Status lamp also changes from orange, red, to
green each time you press the Black Start key.
(3) Press the Stop/Exit key in any process of the above display cycle. The machine beeps
for one second and returns to the initial stage of the maintenance mode.
Fig. 8-5
Black Start ke
y
Black Start ke
y
Black Start ke
y