Brother HL-2400C Service Manual page 126

5) Press the Continue button to implement SW TEST.
The LEDs are all off, and then the following display appears. Check that the
corresponding number appears when pressing the buttons on the control panel.
X X X X X X X X
1 2 3 4 5 6 7 8
6) Press the Continue button to implement the SENSOR TEST.
The LEDs are all off, then the following display appears.
X X X X X X X X X X X X X X X
X X X
A B C D E F G H I J K L M N O P
Q R S T
Check that the display of each sensor is
changed to the corresponding character.
<Ex. Toner cartridge (K)>
(Open the cover)
cartridge.) (Close the cover
seconds.) (Open the cover.)
cartridge.) (Close the cover
seconds.) 'D'
Note:
Since the sensors respond only when the cover is closed, be sure to close the cover
before re-installing any items.
The sensors tests, especially the OPC test, require time to respond on the LCD panel.
Operate a sensor in one sense for at least
original condition for reliable operation of these tests.
(Remove the toner
and wait for 20
(Install the toner
and wait for 20
20
V-5
Corresponding button number on the panel
1
4
3
6 7
Corresponding sensor code
A: Front Cover
B: Top Cover
C: Rear Cover (Transfer Unit)
D: Toner Cartridge (K)
E: Toner Cartridge (C)
F: Toner Cartridge (M)
G: Toner Cartridge (Y)
H: OPC Belt Cartridge
I: Fuser Cleaner
J: Fusing Unit
K: Waste Toner
L: Upper Cassette
M: Lower Cassette
N: Upper Cassette Paper
O: Lower Cassette Paper
P: Upper Cassette Media
Q: Lower Cassette Media
R: Paper Sensor 1
S: Paper Sensor 2
T Paper Sensor 3
seconds before restoring it to the
2
5
8