CHAPTER 8 TROUBLESHOOTING
8-30
Error Code
Concerned Part
Drum HP Sensor
E3
Is a belt cartridge properly installed ?
Confirm the connection of connector.
Is DCN4 of IOD1 properly connected with a connector of drum HP sensor ?
Check the voltage: +5V-1
Is the v5V between DCN4-1 and 3 ?
Is the v5V between DCN2-1 and 2 ?
Replace a low voltage power supply (LVPS).
Is E3 error cleared ?
Job is complete.
Re-install or replace the belt cartridge.
Is an encoder plate deformed ?
Replace the transfer drum.
Connect them properly
Is E3 error cleared ?
Replace the drum HP sensor.
Replace the MCTL PWB.
Job is complete.
MCTL
1LCN
31
HPSEN-N
IOD1
DCN4
DCN2
DCN1
1
2
3
LVPS
+5V-1
SGND
Relay connector
YES
NO
YES
YES
YES
NO
NO
NO
Does a transfer drum rotate lightly ?
1
2
1
2
31
YES
NO
Is E3 error cleared ?
Is a rotation torque excessive ?
Replace the IOD1 PWB.
ACN1
1
2
3
1
2
3
Drum Encoder Sensor
(EN)
Is E3 error cleared ?
YES
NO
NO
NO
NO
YES
YES
+5V-1
HPSEN-N
SGND
5
7
1
Summary of Contents for HL-3450CN Series
Page 15: ...HL 3450CN SERVICE MANUAL xiii 3 Rating Label For US For Europe 4 Operation Label 5 Jam Label ...
Page 17: ...HL 3450CN SERVICE MANUAL CHAPTER 1 PRODUCT OUTLINE ...
Page 27: ...HL 3450CN SERVICE MANUAL CHAPTER 2 SPECIFICATIONS ...
Page 39: ...CHAPTER 3 INSTALLATION ...
Page 54: ...HL 3450CN SERVICE MANUAL CHAPTER 4 STRUCTURE OF SYSTEM COMPONENTS ...
Page 104: ...HL 3450CN SERVICE MANUAL 4 51 Main PCB Circuit Diagram 1 8 CODE B512137CIR 1 8 LJ8907001 NAME ...
Page 106: ...HL 3450CN SERVICE MANUAL 4 53 Main PCB Circuit Diagram 3 8 CODE B512137CIR 3 8 LJ8907001 NAME ...
Page 108: ...HL 3450CN SERVICE MANUAL 4 55 Main PCB Circuit Diagram 5 8 CODE B512137CIR 5 8 LJ8907001 NAME ...
Page 110: ...HL 3450CN SERVICE MANUAL 4 57 Main PCB Circuit Diagram 7 8 CODE B512137CIR 7 8 LJ8907001 NAME ...
Page 126: ...HL 3450CN SERVICE MANUAL CHAPTER 5 CONTROL PANEL OPERATION ...
Page 173: ...HL 3450CN SERVICE MANUAL CHAPTER 6 PERIODIC MAINTENANCE ...
Page 208: ...CHAPTER 7 DISASSEMBLY RE ASSEMBLY ...
Page 264: ...HL 3450CN SERVICE MANUAL CHAPTER 8 TROUBLESHOOTING ...
Page 310: ...HL 3450CN SERVICE MANUAL 8 47 5 IMAGE FAILURE 1 2 3 4 5 6 7 8 9 a 9 b 10 11 12 13 14 ...
Page 311: ...CHAPTER 8 TROUBLESHOOTING 8 48 15 a 15 b 16 17 18 19 20 21 22 23 24 25 26 27 28 244m m 29 ...