Check Lcd Operation (Function Code 12) - Brother DCP-7090 Service Manual

1.3.6 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>
For models with touch panel
(1) Press the [1], and then the [2] in the initial state of maintenance mode. LCD displays
shown as the chart below.
(2) Press the
By pressing the
the chart. When you press the
the to return to the last LCD display.
Note:
At <Display A-7>, you cannot switch the display to column B even press the
(3) When you press the [X] at the Display A-7 or B-1 to 7, the machine returns to the initial
state of the maintenance mode.
<Display A-1>
all white
<Display A-2>
all black
<Display A-3>
all gray
<Display A-4>
all red
<Display A-5>
all green
<Display A-6>
all blue
<Display A-7>
picture data
to switch the display column A and display column B.
, LCD moves to the next display of the each column according to
at the Display B-7, LCD returns to display B-1. Press
Fig. 5-3
5-11
<Display B-1>
bright point/
down point
<Display B-2>
bright point
<Display B-3>
white gradual
<Display B-4>
red gradual
<Display B-5>
green gradual
<Display B-6>
blue gradual
<Display B-7>
Displays BMP file in the Media by rotation
.
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