Brother MFC-9130CW Service Manual page 375

1.4.19 Motor reset (Function code 57)
<Function>
If the manufacturer of the machine's motors is unidentified, identification operation is
performed before a warm-up. After the operation is completed, a warm-up is performed.
If the combination of main PCB and/or motors is changed, the motor identification result needs
to be reset. This function allows you to reset the motor identification result.
<Operating procedure>
(1) Press the 5 and 7 keys in this order in the initial state of the maintenance mode.
"RESET MOTOR" is displayed on the LCD.
(2) When you press the Mono Start key, the motor identification result is reset and "PLZ
POWER OFF/ON" is displayed on the LCD.
(3) Turn OFF the power switch of the machine.
Note:
When the power is turned OFF and ON again after the motor identification result is reset,
a motor identification operation is performed.
5-37
Confidential