Operational Check Of Lcd (Maintenance Mode 12); Operational Check Of Lcd - Brother MFC-J2320 Service Manual

1.3.7 Operational Check of LCD (Maintenance mode 12)

< Function >
This function checks whether the LCD on the control panel works normally.
< Operating Procedure >
(1) Press the 1 and 2 keys in this order in the initial stage of the maintenance mode.
(2) Each time you press the Home key, the LCD cycles through the screens as shown
below.
Pressing the Back key goes back to the immediately preceding screen.
When Screen 13 displays, pressing the Home key switches to Screen 1.
(3) Press the X key in any process of the screen cycle to return the machine to the
initial stage of the maintenance mode.
3.7 inch LCD model

Screen 1
Completely blank
Screen 2
All black
Screen 3
All gray
Screen 4
All red
Screen 5
All green
Screen 6
All blue
Screen 7
White stepwise
Screen 8
Red stepwise
Screen 9
Green stepwise
Screen 10
Blue stepwise
Screen 11
Stroke detection
Screen 12
All gray
Screen 13
Image data
5-19
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