Operational Check Of Control Panel Buttons (Function Code: 13) - Brother FAX-2840 Service Manual

1.3.8 Operational check of control panel buttons (Function code: 13)

<Function>
This function is used to check that the buttons on the control panel are operating normally.
<Operating Procedure>
(1) Press the [1] and [3] buttons in this order in the initial state of the maintenance mode.
"00" appears on the LCD.
(2) Press the buttons in the order designated in the illustration shown below.
The LCD shows the corresponding number in decimal notation each time a button is
pressed. Check that the displayed number is correct by referring to the illustration below.
When the buttons are pressed in an incorrect order, a warning beep goes off and
"INVALID OPERATE" appears on the LCD at the same time. Press the [Stop/Exit]
button, and then press the correct buttons.
(3) When button operation is normal, the machine beeps for one second and returns to the
initial state of maintenance mode when the last button is pressed.
Memo:
• When the [Stop/Exit] button is pressed during button operation, the machine beeps for
one second and returns to the initial state of the maintenance mode.
MFC-7240 / 7290 / FAX-2950
1 2
5 6
9 10
13 14
17
3 4
8
7
12
11
20
15 16
25
Fig. 5-5
18 19
27
30
22
33
24
21
36
23
26
5-13
39
28 29
31 32
40
34 35
37 38
Confidential