Acquisition Of White/Black Level Data (Maintenance Mode 55) - Brother MFC-J5335DW Service Manual

1.3.15 Acquisition of White/Black Level Data (Maintenance mode 55)

< Function >
This procedure allows the machine to obtain white/black level data for the CIS scanner
and save it into the EEPROM on the Main PCB.
< Operating Procedure >
(1) Press the 5 key twice in the initial stage of the maintenance mode.
If any error has occurred in the machine, the "ME AF STOP" appears on the LCD.
If no error has occurred in the machine, the machine automatically goes to step
(2).
(2) The machine displays the "Press START" on the LCD. Press the Mono Start key.
(3) The machine displays the "SCANNER AREA SET" on the LCD and obtains white/
black level data.
(4) After a few seconds, the machine saves the white/black level data into the
EEPROM and returns to the initial stage of the maintenance mode.
To return the machine to the initial stage of the maintenance mode, press the X
key.
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