Detailed Description Of Maintenance-Mode Functions - Brother CB200 Service Manual

4.3 DETAILED DESCRIPTION OF
MAINTENANCE-MODE FUNCTIONS
4.3.1 Setting of the scanning compensation parameters stored in the EEPROM (involving home
positioning of the copyboard screen) [Function code 55]
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Function
The machine performs home-positioning of the copyboard screen (using black HP marks on the
screen) and sets the scanning compensation parameters registered in the EEPROM.
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Operating Procedure
(1) Open the paper compartment cover and hold down the COPY ALL and FEED keys for 15
seconds.
(2) Press the COPY ALL key with the paper compartment cover opened.
The machine checks whether either of the two black HP marks on the copyboard screen is
placed in the home position (i.e. in the scanning position). If neither mark is in the home
position, the machine scrolls up the copyboard screen until either mark comes to the home
position.
After detection of either black HP mark, the machine flashes the PAPER LED and starts
setting the scanning compensation parameters in the EEPROM.
Upon completion of parameter setting, the machine turns the PAPER LED off and returns to
the regular operation mode.
If any error occurs during this procedure, the machine prints out an error code and returns to
the regular operation mode.
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