High-Voltage Power Supply - Canon LBP 2460 - B/W Laser Printer Service Manual

CHAPTER 2
C. High-Voltage Power Supply
J701-B5 /HV1FRQ
J701-B7 /HVT1DCD
DC Transformer
Drive Circuit
J701-A6 DENADJ
J701-B8 /DBDCD
J701-A7 /DBACD
J701-A8 /DBFRQ
TONRS
J701-A5
J701-B1 HVTVLTD
HVTS
J701-A1
J701-A2 /HVTRVSD
J701-B2 /HVTCRTD
J701-B4 /DCHGBD
J701-B6 /DCHGUP
J701-B3 /HRLBD
J701-A10 +24VB
J701-B10 +24VB
J701-A9 GND
J701-B9 GND
2 - 18
AC Transformer
Drive Circuit
Image Density
Adjustment
Circuit
AC Transformer
Drive Circuit
Transfer Positive
Voltage Transformer
Drive Circuit
Transfer Positive
Voltage Sense
Circuit
Transfer Negative
Transfer Negative
Voltage Transformer
Voltage Transformer
Drive Circuit
Transfer Constant
Current Control
Circuit
Discharge
Discharge Voltage
Transformer Drive Voltage
Transformer
Circuit
Upper Fixing Roller
Upper Fixing
Voltage Transformer
Roller Voltage
Drive Circuit Transformer
+24V
+24V
Reference
Voltage
Power Supply
Figure 2-2-12
[T702]
Primary AC
Transformer
AC Current
detection Circuit
Primary DC
Generation
Circuit
[T701]
DC Transformer
Developing DC
Generation
Circuit
[T703]
Developing AC
Transformer
Toner detection
Circuit
[T704]
Transfer Positive
Voltage
Transformer
[T705]
Negative Voltage
Generation Circuit
t
[T707]
Discharge
Voltage
Generator Circuit
[T706]
Upper Fixing Roller
Voltage generation
Circuit
+21.5V
HV1 TB701
To primary
charging roller
HVDB TB702
To developing
cylinder
TB703
From toner
sensor
To transfer
charging roller
DCHGB
TB706
To static charge
eliminator
HRLB TB705
To upper fixing
roller
GND TB704