Operational Check Of Lcd (Function Code 12) - Brother DCP-9040CN Service Manual

1.4.7 Operational 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 buttons in this order in the initial stage of the maintenance mode. The
LCD shows.
(2) Press the Black Start button. Each time you press the Black Start button, the LCD cycles
through the displays shown below.
(3) Press the Stop/Exit button in any process of the above display cycle. The machine beeps
for one second and returns to the initial stage of the maintenance mode.
Black Start button
Black Start button
Black Start button
Fig. 5-5
5-12 Confidential