HL-3450CN SERVICE MANUAL
4-63
2.5
High-voltage Power Supply Unit
(1)
Outputs and Function
No.
Function
Power Supply (P/S)
P/S Name
Approx. Output Voltage
1
Charging
CHV (-)
(4.6KV) 600µA
2
First transfer
CBV (-)
200V
a
900V
3 Developing Y, M
DBV (-A)
200V
a
400V
bias
C, K
DBV (-B)
200V
a
400V
4
Second transfer
THV (+)
400V
a
3,000V
5
Transfer roller cleaning
THV (-)
600V
6 Paper
discharging
ACV (
a
)
4.9KV
DCV
(+)
400V
7 Drum
cleaning
FCBV
200V
a
1,000V
(2)
Layout of Connector Pin Assignment
See Fig.4-42 below;
ACV
THV
T801
AC
CHV
CBV ZD1
DBV
(C)
DBV
(M)
DBV
(Y)
DBVM/C
CHV
THVT
THVR
VREF
FCBV
DBVK/Y
DBV
(K)
M
D400
D405
T401
T702
D401
D404
IC701
E
E
ZD701
D401
D201
D802
D502
D301
BCN1
1
17
18
2
D202
D001
IC001
D503
IP101
N38
N38
IP001
D302
D402
D203
D201
HC201
T201
VR201
D208
3
D204
D200
D502
HC401
D303
IC201
VR301
D403
IC102
IC101
D102
D103
3
D501
VR101
C101
D301
E
HC101
D004
D204
D101
3
VR701
VR001
D703
IC801
D701
D707
D701
D803
HC801
HC801
IC801
S
S
D803
D802
BCN2
1
D805
D801
D805
D801
T802
D802
D803
D804
T801
C805
VR802
D705
T701
D704
3
D703
D805
3
D001
D708
T101
ZD003
ZD002
ZD001
D305
D304
T301
T501
D308
E D504
D508
D506
Fig. 4-41
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 ...