Brother HL-5240 Service Manual page 295

< Functions of each "Service Mode" >
(1) Factory Inspection Mode
This mode is to check each sensor at the assembly line.
< Sensor Inspection Check Procedure >
(1) Print "Print Settings" by clicking the Go button three times. If a failure such as paper
jams occurs, activate each sensor manually when the machine goes into the
inspection mode.
(2) Procedures to go into the factory inspection mode are as follows.
< HL-5240/5250DN >
1. Check that the front cover is open.
2. Turn ON the power switch while the Go button is held.
3. After all LEDs on the panel are lit, only the Status LED goes out.
4. Release the Go button and check that all LEDs are out.
5. Press the Go button once. (If the Go button is pressed, the Status LED is lit.
6. Check that Toner/Drum/Paper LEDs are lighted.
7. Press the Go button once. Each mode starts after 2 seconds. (If the Go
< HL-5270DN/5280DW >
1. Check that the front cover is open.
2. Turn ON the power switch while the Go button is held.
3. The message "USERS MODE" is shown on the LCD panel.
4. Release the Go button and check that the Data LED is out.
5. Press the Go button once. (If the Go button is pressed, the Data LED is lit. If
6. Check that the message "USERS MODE" is shown on the LCD panel with
7. Press the Go button once. Each mode starts after 2 seconds. (If the Go
If the Go button is released, the LED is out.)
button is pressed, the Status LED is lit. If the Go button is released, the LED
is out.)
the Go button is released, the LED is out.)
orange backlight.
button is pressed, the Data LED is lit. If the Go button is released, the LED is
out.)
HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL
7-7 Confidential