Brother MFC990CW Service Manual page 448

Appendix 3. EEPROM Customizing Codes
This appendix provides instructions on how to set up the EEPROM customizing codes for the various
preferences exclusively designed for each destination. The specified customizing code is stored in the
EEPROM mounted on the main PCB. If the main PCB is replaced, therefore, you need to set up the
proper customizing code with the machine in the maintenance mode.
Note: Customizing codes customize firmware for individual models, enabling the common firmware to
be used for various models. A list of EEPROM customizing codes comes with the firmware data
provided by Brother Industries.
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