Acquisition Of White/Black Level Data And Cis Scanner Area Setting (Maintenance Mode 55); Acquisition Of White/Black Level Data And Cis Scanner Area Setting - Brother DCP-J552DW 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 "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 machine displays "SCANNER ERROR" on
the LCD.
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