Acquisition Of White Level Data And Cis Scanner Area Setting (Function Code 55); Output Of Scanning Clock (Function Code 59); Acquisition Of White Level Data And Cis Scanner Area Setting; Output Of Scanning Clock - Brother MFC4820C Service Manual

7.5.10 Acquisition of White Level Data and CIS Scanner Area Setting (Function code 55)

Function
This function allows the equipment to obtain white level data for the CIS scanner and save it
together with the CIS scanner area into the EEPROM on the driver PCB.
Operating Procedure
(1) Press the 5 key twice in the initial stage of the maintenance mode.
The "WHITE LEVEL1" will appear on the LCD.
The equipment automatically obtains white level data.
(2) If this operation completes normally, the equipment returns to the initial stage of the
maintenance mode.
If any error is noted, the "SCANNER ERROR" appears on the LCD. To return the equipment
to the initial stage of the maintenance mode, press the Stop/Exit key.

7.5.11 Output of Scanning Clock (Function code 59)

Function
This function is designed for debugging at the factory. Do not disturb it in maintenance.
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