Operational Check Of Lcd (Function Code 12) - Brother 09055CDN 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 state of the maintenance mode.
The LCD shows.
(2) Each time you press the Start/Black button, the LCD cycles through the displays as
shown below.
(3) When the Stop/Exit button is pressed regardless of the display, the machine cancels the
operation, beeps for one second and returns to the initial state of the maintenance mode.
Non Touch panel model
.
<Display 1>
Backlight
LCD
Data LED
Error LED
<Display 2>
Backlight
LCD
Data LED
Error LED
<Display 3>
Backlight
LCD
Data LED
Error LED
<Display 4>
Backlight
LCD
Data LED
Error LED
: ON
: Display of all dots ON
: ON
: ON
: ON
: Display of all dots OFF
: ON
: ON
: OFF
: Display of all dots ON
: ON
: ON
: OFF
: Display of all dots OFF
: ON
: ON
5-17
Display 1
Display 2
Display 3
Display 4
Fig. 5-7
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