Brother HL-2400C - Page 270

VIII-24
Error Code
Concerned Part
Drum HP Sensor
E3
Is the belt cartridge properly installed ?
Check the connector.
Is DCN5 of IOD1 properly connected to the drum HP sensor ?
Check the voltage: +5V-1
Is the voltage +5V between DCN5-1 and 3 ?
Is the voltage +5V between DCN2-1 and 2 ?
Replace the low voltage power supply (LVPS).
Is E3 error cleared ?
Re-install or replace the belt cartridge.
Is the encoder plate deformed ?
Replace the transfer drum.
Connect them properly
Is E3 error cleared ?
Replace the drum HP sensor.
Replace the MCTL PCB.
MCTL
1LCN
45
HPSEN-N
IOD1
DCN5
DCN2
DCN1
1
2
3
LVPS
+5V-1
SGND
Relay connector
YES
NO
YES
YES
YES
NO
NO
NO
Does the transfer drum rotate lightly ?
1
2
45
YES
NO
Is E3 error cleared ?
Is the rotation torque excessive ?
Replace the IOD1 PCB.
ACN1
1
2
3
1
2
3
Drum PH Sensor
(EN)
Is E3 error cleared ?
YES
NO
NO
NO
NO
YES
YES
+5V-1
HPSEN-N
SGND
Finished.
Finished.