Brother DCP-6690CW, Service Manual, Page: 402 / 506

9-56 Confidential
9.4.27 Equipment Error Code Indication (Function code 82) (User-accessible)
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Function
This function displays an error code of the last error on the LCD.
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Operating Procedure
(1) Press the 8 and 2 keys in this order in the initial stage of the maintenance mode.
The LCD shows the "MACHINE ERROR X X."
(2) To stop this operation and return the machine to the initial stage of the maintenance mode,
press the Stop/Exit key.
9.4.28 Output of Transmission Log to the Telephone Line (Function code 87)
(User-accessible)
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Function
This function outputs the transmission log (that the machine has stored about the latest
transmission) to the telephone line. It allows the service personnel to receive the transmission
log of the user's machine at a remote location and use it for analyzing problems arising in the
user's machine.
This function is applicable to the MFC only.
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Operating Procedure
(1) If the user's machine has a transmission-related problem, call the user's machine at a remote
location from your machine.
(2) If the line is connected, have the user perform the following:
1) Press the Menu , Black Start ( Mono Start ), and 0 keys in this order.
2) Press the 8 and 7 keys in this order.
The above operation makes the user's machine send CNG to your machine for sending
the transmission log.
(3) If you hear the CNG sent from the user's machine, press the Black Start ( Mono Start ) key
of your machine.
Your machine will start to receive the transmission log from the user's machine.