2F3/2F4-3.0
2-3-3
2-3-2 Engine controller PWB
Figure 2-3-2 Engine controller PWB block diagram
(U15)
(U16)
(U17)
Drum motor
driver IC (U14)
Primary transfer
motor driver IC (U18)
Toner motor
driver circuit
(Q14, Q16)
(Q15, Q17)
(Q20, Q22)
(Q21, Q23)
Eraser driver
circuit (Q13)
(Q12)
(Q11)
(Q10)
Micro
controller
(U8)
Flash
memory
(U9)
Sensor
PWB
Abnormal temperature
detection circuit (U1)
EEPROM
(U12)
Data/Address
multiplex bus
Address bus
Engine controller PWB
Address bus
LED
print
heads
relay
PWB
Engine
relay
PWB
Bias high
voltage
PWB
Reset IC
(U10)
Feed motor
driver IC (U21)
Clutch driver
circuit (Q39)
Controller box
fan motor driver
circuit (Q39)
Controller
box fan
motor
(Q40)
(Q41)
Fuser motor
driver IC (U22)
Fan motor
driver circuit
(Q27)
Analog
switches
(U24, U25)
D-A converter
(U28)
Main
high
voltage
PWB
Feed
motor
Fuser
motor
Developer
drive stop motor
Optional
paper
feeder/
duplexer
Operation
panel
PWB
Main
controller
PWB
Power
supply
PWB
(Q28)
Toner
ID
sensor
(Q8)
(Q9)
LED print heads control
Paper full sensor signal
Toner sensors signals
Fuser heater lamps control
Fuser thermistor signals
Zero cross signal
Sleep signal
Face up/down solenoid control
Main charger control
Transfer charger control
Sensor signals
Exit sensor signal
Sensors/switches signals
+5V
+3.3V
+24V
+24V
EEPROMs control
Clutches
CPU
Cooling
fan motor
(24 ppm
printer
only)
ASIC
(U13)
RESET
RESET
Sleep mode
circuit
Содержание C5020N - FS Color LED Printer
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