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C. High-Voltage Power Supply
Figure 2-2-10
2 - 16
CHAPTER 2
J701-B2
J701-B4
J701-B3
/TRFCCD
J701-A10
/DEVACD
J701-A7
J701-B7
PR1
TB702
TB703
[T705]
TB706
TB705
[T701]
[T703]
[T706]
[T708]
[T707]
TB704
+24VB
+24VB
+24V
GND
GND
AC Transformer
Drive Circuit
Upper Fixing Roller
Voltage Transformer
Drive Circuit
Upper Fixing
Roller Voltage
Transformer
Discharge
Voltage
Generator Circuit
Discharge
Voltage
Transformer
Discharge Voltage
Transformer Drive
Circuit
Transfer Constant Current
Control Circuit
Transfer Negative
Voltage Transformer
Transfer Negative
Voltage Transformer
Drive Circuit
Transfer Positive Voltage
Transformer Drive Circuit
AC Transformer
Drive Circuit
Developing AC
Transformer
Transfer Positive
Voltage
Transformer
PrimaryAC
Transformer
TB701
DEV
DCHGB
HRLB
/HRLBD
/DCHGUP
/DCHGBD
J701-A2
J701-A4
TONSNS
DEVACCLK
J701-A8
PR1ACCLK
J701-A12
J701-B12
J701-A11
J701-B11
GND
To primary
charging roller
To developing
cylinder
From toner
sensor
To transfer
charging roller
To static charge
eliminator
To upper fixing
roller
+24V
+21.5V
Reference
Voltage
Power Supply
AC Current
detection Circuit
Toner detection
Circuit
Negative Voltage
Generation Circuit
Upper Fixing Roller
Voltage generation
Circuit
TRFCLK
TRFVSNS
TRFVCNT
/TRFNVD
[T702]
AC Transformer
Drive Circuit
Primary DC
Transformer
/PR1DCD
[T704]
DC Transformer
Drive Circuit
/DEVDCD
Developing DC
Transformer
TONANT
Transfer Positive
Voltage Sense Circuit
/PR1ACD
J701-B8
J701-B9
J701-A6
HVTCLK
DENADJ
J701-B10
J701-A9
J701-A3
J701-A1
J701-B1
Image Density
Adjustment Circuit