Brother HL-2600CN Service Manual page 129

3) Press the Go button to implement the SW TEST.
The following display appears on the LCD and the LEDs are all turned off.
Check that the LEDs are turned on and the corresponding number appears as
follows when pressing the buttons on the control panel in order.
X X X X X X X X
1 2 3 4 5 6 7 8
4) Press the Go button to implement the SENSOR TEST.
The following display appears on the LCD.
Check that the display of each sensor is changed to the corresponding character.
ABCDEFGHIJKLMNOP
QRST
Note:
x
For the sensor of 'Q' for HL-2600CN, the display is not changed to 'Q' and stays .
Corresponding button number on the panel
3
6
Corresponding sensor code
V-4
2
1
4
5
7
8