Operational Check Of Control Panel Button (Function Code 13) - Brother HL-4140CN Service Manual

1.4.5

Operational check of control panel button (Function code 13)

<Function>
This function allows you to check if the buttons on the control panel work properly.
<Operating procedure>
(1) Press the
the maintenance mode. Then, press the OK button. The printer displays "00" on the
LCD.
(2) Press the buttons in the order designated in the illustration shown below. The LCD shows
the corresponding number in decimal notation each time a button is pressed.
Check that the displayed number is correct by referring to the illustration below. If a
button is pressed out of order, the printer displays the "INVALID OPERATE" on the LCD.
Press the Cancel button, and the press the correct buttons.
(3) After the last number button is pressed, the printer returns to the initial state of the
maintenance mode.
Memo:
To terminate this operation, press the Cancel button. The printer returns to the initial state
of the maintenance mode.
or button to display "MAINTENANCE 13" on the LCD in the initial state of
1 2
4
5
6
Fig. 5-4
3
7
5-9
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