Display Machine Error Code (Function Code 82); Reset Irregular Power Supply Detection Counter Of Low-Voltage Power Supply Pcb (Function Code 88); Quit Maintenance Mode (Function Code 99) - Brother HL-2290 Service Manual

1.3.20 Display machine error code (Function code 82)

<Function>
This function is used to display the latest error code on the LCD.
<Operating Procedure>
(1) Press the [▲] or [▼] in the initial state of maintenance mode to display "MAINTENANCE
82" on the LCD, and press the [OK]. "MACHINE ERR XXXX" is displayed on the LCD.
(2) Press and hold the [Go] for five seconds, and the machine returns to the initial state of
maintenance mode.
1.3.21 Reset irregular power supply detection counter of low-voltage power
supply PCB (Function code 88)
<Function>
This function is used to reset the number of irregular power supply errors in the main PCB
after replacing the low-voltage power supply PCB.
<Operating Procedure>
(1) Press the [▲] or [▼] in the initial state of maintenance mode to display "MAINTENANCE
88" on the LCD, and press the [OK]. "Reset-LVPS" is displayed on the LCD.
(2) Press the [OK]. "Reset-LVPS OK?" is displayed on the LCD.
(3) Pressing the [Go] resets the number of times that irregular power supply errors occurred
and "Reset-LVPS" is displayed on the LCD.
Press and hold the [Go] for five seconds, and the machine returns to the initial state of
maintenance mode.

1.3.22 Quit maintenance mode (Function code 99)

<Function>
This function is used to quit the maintenance mode, restart the machine, and return it to the
ready state. Also forcefully close the fuser unit error.
<Operating Procedure>
(1) Press the [▲] or [▼] in the initial state of maintenance mode to display "MAINTENANCE
99" on the LCD, and press the [OK]. The machine quits maintenance mode and returns
to the ready state.
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