Send Communication Log Information To Telephone Line (Function Code 87); Reset Irregular Power Supply Detection Counter Of Low-Voltage Power Supply Pcb (Function Code 88); Quit Maintenance Mode (Function Code 99) - Brother DCP-7090 Service Manual

1.3.29 Send communication log information to telephone line
(Function code 87)
<Function>
This function is used to send the error list to service personnel at a remote service station
when a fax communication problem has occurred in the user's machine. Receiving the error
list allows the service personnel to analyze the problem current in the user's machine.
<Operating Procedure>
• Service side
(1) Make a call from the service side equipment to the user side equipment.
• User side
(2) Press the [8] and [7] in this order in the initial state of maintenance mode. "SENDING
P.01" is displayed on the LCD and sending error list starts. When the error list is sent, the
machine returns to the ready state.
• Service side
(3) Once the user side equipment started sending the error list, press the [Start].
"Send or Receive? / 1.Send 2.Receive" is displayed on the LCD.
(4) Press the [2]. Receiving the error list starts.
1.3.30 Reset irregular power supply detection counter of low-voltage power
supply PCB (Function code 88)
<Function>
This function is used to reset the corresponding counter after the low-voltage power supply
PCB ASSY is replaced. The number of times the part has been replaced is increased by one.
<Operating Procedure>
(1) Press the [8] twice in the initial state of maintenance mode. For models without keypad,
press the [▲] or [▼] to display "MAINTENANCE 88" on the LCD and press the [OK].
"Reset- LVPS" is displayed on the LCD.
(2) Press the [Start] or [Mono Start].
(3) "Reset-LVPS OK?" is displayed on the LCD. Press the [Start] or [Mono Start] to reset the
number of times that irregular power supply errors occurred and "Reset-LVPS" is
displayed on the LCD.
(4) Press the [X] or [Stop], and the machine returns to the initial state of maintenance mode.

1.3.31 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 [9] twice in the initial state of maintenance mode. For models without keypad,
press the [▲] or [▼] to display "MAINTENANCE 99" on the LCD and press the [OK]. The
machine quits the maintenance mode and returns to the ready state.
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