Brother 8250P - FAX B/W Laser Printer Service Manual page 148

3.9 CIS Scanner Area Setting
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Function
The equipment sets the CIS scanner area and stores it into the EEPROM.
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Operating Procedure
(1) Press the 5 key twice in the initial stage of the maintenance mode.
The "SCANNER AREA SET," "BLACK LEVEL INIT," and "WHITE LEVEL INIT" will appear on
the LCD in this order.
The equipment checks and sets the area to be scanned.
If no error is noted, the equipment returns to the initial stage of the maintenance mode.
If any error is noted, the "SCANNER ERROR" will appear on the LCD.
equipment to the initial stage of the maintenance mode, press the Stop key.
3.10 EEPROM Customizing
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Function
This function allows you to customize the EEPROM according to language, function settings, and
firmware switch settings. The customizing codes list is given in Appendix 1.
NOTE: If you replace the main PCB, be sure to carry out this procedure.
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Operating Procedure
(1) Press the 7 and 4 keys in this order in the initial stage of the maintenance mode.
The current customizing code (e.g., 1101 in the case of MFC4350 U.S.A. versions) appears.
(2) Enter the desired customizing code (e.g., 0202 in the case of MFC4650 Canadian versions).
The newly entered code appears.
NOTE: If a wrong 4-digit code is entered, the equipment will malfunction.
(3) Press the Start key.
The equipment saves the setting and returns to the initial stage of the maintenance mode.
If you press the Stop key or no keys are pressed for one minute in the above procedure, the
equipment stops the procedure and returns to the initial stage of the maintenance mode.
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To return the