Brother HL-4150CDN - Operational Check of LCD (Function Code 12)

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Confidential
1.4.4 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 or button to display “MAINTENANCE 12” on the LCD in the initial state of
the maintenance mode. Then, press the OK button.
(2) Each time you press the Go button, the LCD cycles through the displays as shown below.
(3) Press Cancel button in any process of the display cycle. The printer returns to the initial
state of the maintenance mode.
<Display 1>
Backlight
LCD
Data LED
Error LED
: OFF
: Display of all dots
: Green blinking
: Red blinking
<Display 2>
Backlight
LCD
Data LED
Error LED
: OFF
: Display of 16 dots in
2 lines
: Green blinking
: Red blinking
<Display 3>
Backlight
LCD
Data LED
Error LED
: OFF
: Display of no dots
: Green blinking
: Red blinking
<Display 4>
Backlight
LCD
Data LED
Error LED
:
ON
: Display of no dots
: Green blinking
: Red blinking
Fig. 5-3
Display 2
Display 1
Display 4
Display 3