CHAPTER 8 TROUBLESHOOTING
8-24
Error Code
Name of Part
Developer Clutch (DCLC)
D3
Confirm the connection of Connector.
Is the connection proper between ECN16 of IOD2 and Clutch (DCLC) ?
Is the harness of Clutch (DCLC) broken ?
Check the voltage at DCLC ON-N.
Complete
Is D3 Error cleared ?
Connect the connector properly.
YES
NO
NO
YES
Replace current MCTL PWB with a new one.
Complete
Is D3 Error cleared ?
Replace IOD2 PWB with a new one.
Replace the clutch (DCLC) with a new clutch.
Is D3 Error cleared ?
YES
YES
NO
YES
YES
Complete
Re-check
NO
NO
Connect the harness.
Does the voltage drop ( ) between ECN16-3 and ECN2-6?
Does the voltage jump ( ) between ECN1-1 and ECN2-8 ?
NO
+24V
MCTL
12CN
1
DCL(C)ON-P
IOD2
ECN1 ECN16
DCLC
+24V-1
DCL(C)ON-P
1
3
ECN2
3
6
8
PGND
SGND
+24V-1
1
14
15
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 ...