Acquisition Of White Level Data (Function Code 55) - Brother DCP-9010CN Service Manual

1.4.16 Acquisition of white level data (Function code 55)

<Function>
This function allows you to acquire the white level of the scanner unit and save it to the
EEPROM of the main PCB.
Note:
When you replace the document scanner unit, be sure to perform this procedure.
<Operating procedure>
(1) Press the 5 button twice in the initial state of the maintenance mode.
(2) "Press START" will appear on the LCD. Press the Start/Black button.
"SCANNER AREA SET" will appear on the LCD.
(3) After a few seconds, the machine saves the magnification compensation setting value,
and beeps for one second and returns to the initial state of the maintenance mode.
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