Kyocera FS-6020 - Engine;High Voltage PWB

FS-6020
2-3-3
2-3-2 Engine/high voltage PWB
Engine/high voltage PWB
<Engine circuit section>
<High voltage circuit section>
ZCROSS
HEATON
OPSDI/OPSDO
OPSEL0-3
THVDR,
TSEL1-2
RHVDR
EEDIO
EECLK
MHVDR,
MSEL1-2
SHVDR,
SHVSEL
OPSCLK
OPRDYN
MIDDRN, FEDDRN,REGDRN, MPFSOL
ERASER
SCKN, EGSI
SBSY, SDIR, EGIRN, PDMASKN,
EGSO
POLDYN
POLON, OUTPEN
HANDSN, FDPFULN, EXIT
CAS0-2, PAPVOL1-2
TNEMP
REGPAP
MOTONN
MOTORDYN
THERM
HTEMPN
THDEAD
FANDRN, PFANDRN
5 V DC, 24 V DC
CPU
(U1)
Developing bias
output circuit
Transfer bias
output circuit
Main charger
output circuit
Separation bias
output circuit
Developing roller
Transfer roller
Main charger
Separation
charger brush
Paper
feeder
(optional)
Duplexer
(optional)
Switch
sensor
Main
motor
Fixing
thermistor
Fixing
heater lamp
Power
source
PWB
Toner sensor
Fan motor
Clutch
solenoid
Reset
circuit
(U2)
Main PWB
Eraser lamp
Laser
scanner
unit
Fixing heater
lamp ON -
Runaway prevention -
Fixing thermistor
disconnection
detection circuit
EEPROM
circuit
(U3)
Registration
sensor
Figure 2-3-3 Engine/high voltage PWB block diagram
The engine/high voltage PWB consists mainly of CPU (U1) and it is primarily divided into the engine circuit section that
controls the entire hardware such as the process and paper conveying mechanism and the high voltage circuit section that
generates various high voltages to output during the process operation.