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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 scanning CIS and those in
"ADF:**," an error code for the second side scanning CIS.
To return the machine to the initial stage of the maintenance mode, press the Stop key.
Error codes Contents
90 Abnormal digital conversion data detected
91 Abnormal digital conversion data detected
92 Abnormal light intensity data detected
93 Abnormal white level data obtained
94 Abnormal black level data obtained
95 Scanner cover is open
9A Failed to adjust the light intensity
9B Failed to obtain white/black level data
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