Operational Check Of Lcd (Function Code 12) - Brother DCP-7055 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.
In the case of the model without the numeric keys; Press the
"MAINTENANCE 12" appears on the LCD. Then press the OK button. The LCD shows.
(2) Each time you press the Start 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.
<For models with Backlight>
(For all countries)
MFC-7860DN / 7860DW
DCP-7065DN / 7070DW
HL-2280DW
(Only for China)
MFC-7360 / 7470D
DCP-7055 / 7060D
ModeKey LED: Constantly blinking (only MFC)
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
<For models without Backlight>
(For all countries)
DCP-7057 / 7057E
MFC-7360N / 7362N / 7460DN
(Except for China)
DCP-7055 / 7060D
MFC-7360 / 7470D
When the Start button is pressed,
the LED display cycles in the following order:
Display 1 → Display 2 → Display 3 → Display 1 • • •
Press the Stop button to stop cycling.
ModeKey LED: Constantly blinking (only MFC)
Display 1
Backlight : Not lit
Display 2
Backlight : Not lit
Display 3
Backlight : Not lit
Fig. 5-4
5-12
or button. The
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