Brother MFC640CW Service Manual page 202

MFC640CW
DCP340CW
(1) Press the Menu, Mono Start, Menu, and Mono Start keys in this order.
The "MAINTENANCE 10" appears on the LCD.
(2) To access the function code 10, press the Set key.
To access any other function code, press the
appears. Then press the Set key.
For function code 10, access the desired firmware switch according to the operating procedure
described in Appendix 4.
(3) To make the machine return to the standby state, press the Stop/Exit key. When each of the
user-accessible functions is completed, the machine automatically returns to the standby state.
DCP340CW
and keys
or key several times until the desired code
8- 4
Sto p /Exit ke y
Menu/Set ke y Black Start ke y
Men u ke y
Mono Start ke y
Set ke y
Sto p /Exit ke y
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