Maintenance Mode; How To Enter The Maintenance Mode; How To Enter The End User-Accessible Maintenance Mode - Brother HL-4140CN Service Manual

1.

MAINTENANCE MODE

The maintenance mode is exclusively designed for the checking, setting and adjustments of
the printer by using the buttons on the control panel. You can perform operational checks of
sensors, perform a print test, display the log information or error codes, and modify the worker
switch (WSW).
1.1

How to Enter the Maintenance Mode

<Operating procedure>
(1) Press the OK button and then the Go button while the printer is in the ready state. Next,
press the
Note:
To enter the maintenance mode, you must press the Go button within 2 seconds after
pressing the OK button. Also, you need to press the
pressing the Go button.
(2) The printer displays "
the initial state of the maintenance mode, a mode in which the printer is ready to accept
entry from the buttons.
(3) To select one of the maintenance-mode functions listed in the
button to display any function code on the LCD. Then press the OK button.
1.2 How to Enter the End User-accessible Maintenance
Mode
Basically, the maintenance-mode functions listed in the
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 the
80, 82 and 91)
<Operating procedure>
(1) Press the OK, Go and OK buttons in this order when the printer is in the ready state.
"0" appears on the LCD.
(2) Press the
press the OK button.
When each of the user-accessible functions is completed, the printer automatically returns to
the ready state. As for the codes
Cancel button to switch the printer return to the ready state.
button four times to enter the maintenance mode.
next page. (codes
or button to display the desired maintenance code on the LCD. Then
12, 25, 28, 45, 66, 68, 71, 72, 75, 80
button within 2 seconds after
" on the LCD, indicating that it is placed in
next page
09, 12, 25, 28, 45, 66, 68, 71, 72, 75, 77,
5-1
next page, press the
should be accessed by
and 82, press the
Confidential
or