Brother HL-L9300CDW Service Manual page 290

(3) Press the *, 2, 8, 6, and 4 keys on the LCD in this
order. The screen shown on the right is displayed on
the LCD and the machine enters the maintenance
mode.
(4) To select one of the maintenance mode functions
shown in
directly enter the function code that you want to use
with the ten-key pad.
1.1.2 How to Enter the End User-accessible Maintenance Mode
Basically, the maintenance-mode functions listed in the next page should be accessed by
service personnel only. However, you can allow end users to access some of these under the
guidance of service personnel by phone, for example. The end user-accessible functions are
shaded in the table given on
41, 45, 61, 66, 68, 71, 72, 77, 80, 82
<Operating procedure>
Model without touch panel
(1) Press the OK, Go and OK keys in this order when the machine is in the ready state.
"0" is displayed on the LCD.
(2) Press the
Then press the OK key.
(3) When each of the maintenance mode functions is completed, the machine automatically
returns to the ready state. As for the codes
the Cancel key to switch the machine return to the ready state.
Model with touch panel
(1) Hold down the Home key for about 5 seconds while
the machine is in the ready state.
The screen shown on the right is displayed on the
LCD.
Memo:
If you cannot find the Home key, press the Toner key, and the Home
key lights up.
(2) Hold down the blank space at the bottom of the LCD
for about 2 seconds. The screen shown on the right is
displayed on the LCD.
(3) Press the *, 0, and # keys on the LCD in this order.
The machine gets ready for the input of a function
code. Enter the function code you want to use.
(4) When each of the maintenance mode functions is
completed, the machine automatically returns to the
ready state.
"1.2 List of Maintenance-mode
"1.2 List of Maintenance-mode
and 91)
or key to display the desired maintenance code on the LCD.
Functions",
Functions". (codes
12, 25, 28, 45, 66, 68, 71, 72, 80
5-2
09, 12, 25, 28,
and 82, press
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