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Brother International MFC 8890DW Service Manual - Page 401
Operation Check of LCD (Function code 12), <Function>, <Operating Procedure>, Start
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4.7 Operation Check of LCD (Function code 12) This function allows you to check whether the LCD on the control panel works normally. (1) Press the [1] and [2] keys in this order in the initial stage of the maintenance mode. The LCD shows. (2) Press the [Start] button. Each time you press the [Start] button, the LCD cycles through the displays shown at right. The Status lamp also changes from orange, red, to green each time you press the [Start] button. (3) Press the [Stop/Exit] button in any process of the above display cycle. The machine beeps for one second and returns to the initial stage of the maintenance mode. Backlight on Backlight on Backlight off Backlight off Fig. 7-5 7-14 Confidential
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7-14
Confidential
4.7
Operation 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
] keys in this order in the initial stage of the maintenance mode.
The LCD shows.
(2)
Press the [
Start
] button.
Each time you press the [
Start
] button, the LCD cycles through
the displays shown at right.
The Status lamp also changes from orange, red, to green
each time you press the [
Start
] button.
(3)
Press the [
Stop/Exit
] button in any process of the above display cycle.
The machine
beeps for one second and returns to the initial stage of the maintenance mode.
Fig. 7-5
Backlight on
Backlight on
Backlight off
Backlight off