Engine/High Voltage Pwb - Olivetti d-Copia 163MF Service Manual

2-3-2

Engine/high voltage PWB

Registration
clutch
Feed clutch
Toner empty
sensor
Waste toner
full sensor
Eraser lamp
(PWB)
Laser
scanner
unit
Main PWB
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 feeding/conveying mechanism and the high voltage circuit
section that generates various high voltages to output during the process operation.
Y107330-8
Connect
PWB
BUZZ
Buzzer
REGSOLON
FEDSOLON
TONER
TNFULL
ERASERON
PLGON
PLGRDY
PLGCLK
OUTPEN
PLGCLK
RESETN
EGIRN
SDIR
SBSY
PDMASKN
EFSI
EFSO
Figure 2-3-3 Engine/high voltage PWB block diagram
Engine/high voltage PWB
EECLK
EEDIO
RESETN
FANH
FANL
MMOTON
MOTCLK
MMOTRDY
CPU
(U1)
Fuser
temperature
HEAT
abnormal
circuit
SLEEPN
ZCROSS
EXITPAP
24V2
ILOCK
Service Manual
EEPROM
(U2)
Reset IC
(U3)
Registration
sensor
Paper
sensor
THERM
HEATN
Interlock switch
24V1
24V2
5V
Main charger
High
Developing bias
voltage
circuit
Transfer bias
Cooling
fan motor
Main motor
Fuser
thermistor
Power
source
PWB
Exit sensor
2-3-3