Operational Check Of Lcd (Function Code: 12) - Brother FAX-2840 Service Manual

1.3.7 Operational check of LCD (Function code: 12)

<Function>
This function is used to check that the LCD on the control panel works normally.
<Operating Procedure>
(1) Press the [1] and [2] buttons in this order in the initial state of the maintenance mode.
The LCD appears as in <Display 1> in the table below.
(2) Each press of the [Start] button cycles through the displays as shown below.
(3) When the [Stop/Exit] button is pressed regardless of the display, the operation is
canceled, and the machine beeps for one second and returns to the initial state of the
maintenance mode.
Display 1
Backlight : Not lit
Display 2
Backlight : Not lit
Display 3
Backlight : Not lit
Display 4
Backlight : Lit
Display 5
Backlight : Lit
Display 6
Backlight : Lit
Fig. 5-4
5-12
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