Brother HL-2400C - Page 269

VIII-23
Error Code
Concerned Part Main Motor(MM)
E2
Does the belt cartridge rotate lightly ?
Check the connectors.
Is ECN12 of IOD2 properly connected with connector DM1 ?
Is ECN2 of IOD2 properly connected with DCN9 of IOD1 ?
Is ECN1 of IOD2 properly connected with 12CN of MCTL ?
Check the voltage:+24V-1 and +5V-1.
+24V-1: Is there +24V between MM1-4 and 5, ECN12-4 and 5, ECN2-5 and 8 ?
+5V-1: Is there +5V between MM1-6 and 7, ECN12-6 and 7, ECN2-11 and 12 ?
Is E2 error cleared ?
Is E2 error cleared ?
Finished.
Replace the belt cartridge.
Is E2 error cleared ?
Replace the fuser unit.
Replace developer gear unit and motor.
Is E2 error cleared ?
Replace the main motor.
Replace the MCTL PCB.
MCTL
12CN
7
8
9
10
MMCLK
MMON-N
IOD2
ECN1
ECN2
ECN12
1
2
3
4
5
6
7
8
9
IOD1
5
8
11
12
+24V-1
PGND
+5V-1
SGND
MM1
MM
1
2
3
4
5
6
7
8
9
YES
YES
NO
YES
YES
YES
YES
NO
NO
NO
NO
NO
Does the fuser unit rotate lightly ?
MMREV-N
MMENC
5
8
11
12
7
8
9
10
MMRDY-N
MMON-N
MMCLK
PGND
+24V-1
SGND
+5V-1
MMENC
MMREV-N
YES
NO
YES
Is E2 error cleared ?
YES
NO
Replace the IOD2 PCB.
Replace the IOD1 PCB.
Finished.
Finished.
Finished.
Finished.