Acquisition Of White/Black Level Data And Cis Scanner Area Setting (Maintenance Mode 55) - Brother MFC-J2320 Service Manual

1.3.17 Acquisition of White/Black Level Data and CIS Scanner Area Setting
(Maintenance mode 55)
< Function >
This procedure allows the machine to obtain white/black level data for the CIS scanner
and save it together with the CIS scanner area 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 STATE 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 "SCANNER AREA SET" on the LCD and obtains white
level data.
(3) After a few seconds, the machine saves the white/black level data and scanning
width correction into the EEPROM and returns to the initial stage of the
maintenance mode.
If any error is detected during this operation, the LCD shows the following
message.
Simplex scanning models "SCANNER ERROR"
Duplex scanning models "ERR FB:**/ADF:**"
Asterisks in "FB:**" show an error code for the first side CIS unit and those in
"ADF:**" show an error code for the second side CIS unit.
Error codes
90
91
92
93
94
95
9A
9B
To return the machine to the initial stage of the maintenance mode, press the X
key.
Abnormal digital conversion data detected
Abnormal digital conversion data detected
Abnormal light intensity data detected
Abnormal white level data obtained
Abnormal black level data obtained
Scanner cover is open
Failed to adjust the light intensity
Failed to obtain white/black level data
Contents
5-34
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