Check Lcd Operation (Function Code: 12) - Brother HL-L5000D Service Manual

1.3.4 Check LCD operation (function code: 12)

<Function>
This function is used to check that the LCD on the control panel is operating normally.
<Operating Procedure>
Non touch panel models
(1) Press the [▲] or [▼] key in the initial
state of maintenance mode to display
"MAINTENANCE 12" on the LCD, and
press the [OK] key.
(2) Each press of the [Go] key cycles
through the displays as shown in the
figure below.
(3) When you press the [X] key, the
machine returns to the initial state of
maintenance mode, regardless of the
display status.
■ LCD
<Non touch panel models>
<Display 1>
Back light:
LCD:
<Display 2>
Back light:
LCD:
<Display 3>
Back light:
LCD:
<Display 4>
Back light:
LCD:
OFF
Displays all dots
OFF
Displays 16 frames
in a line
OFF
Displays no dots
ON (white)
Hides all dots
Touch panel models
(1) Press the [1], and then the [2] key in
the initial state of maintenance mode.
(2) Each press of the [˄] key cycles
through the displays as shown in
5-5. Also, pressing the [˅] key returns
the LCD display to the previous state.
Pressing the [˄] key at the end of
display returns the display to Display
1.
(3) When you press the [X] key, the
machine returns to the initial state of
maintenance mode, regardless of the
display status.
Display 1
Display 2
Display 3
Display 4
Fig. 5-4
5-10
Fig.
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