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2.1.2. Engine Control Block Diagram
LCD I/F
Printer Main
Control Board
Sleep Circuit
Pickup Solenoid
Paper JAM Sensor
M
Paper Feed Motor
Feeder
Board
Motor
Driver
M
Feeder
Board
Pickup Solenoid
Paper JAM Sensor
Option Feeder 1
Option
Feeder
I/F
ADU JAM Sensor Circuit
ADU JAM Sensor
ADU Detection Switch
ADU Detection Sensor Circuit
Printing Control Lines
Serial Communication Lines
IC1
CPU
IC2
DRAM
(16M bit)
Motor
Driver
X3 (12.288 MHz)
S1
Test
IC4
Flash ROM
(4M bit)
Video Image Data (Y, M, C, K), Clock (Y, M, C, K)
Data Transfer Control Signals
Power Supply
Board
Front/Side Door
Interlock Switch
Interlock Switch
IH Power
Supply Board
IH Coil Unit
Voltage Regulator
with Reset Output
with Reset Output
IH Power Control Lines
A/D Convertor Control Lines ( Serial )
NSLP
3.3V
5V
24V
Power Supply Fan
Power Supply Fan
Motor Control Circuit
Fuser Fan
Fuser Fan
Motor Control Circuit
Sub Fuser Fan
Sub Fuser Fan
Motor Control Circuit
Front Door/Right Cover
Open Detection Switch
Open Detection Switch
Door Switch
I/F Circuit
Laser Scanning
Unit
Laser Beam Detection
Signal I/F Circuit
Video I/F Circuit
Polygon Motor
I/F Circuit
LSU Safety
Interlock Switch
Interlock Switch
Optional 3rd paper Feeder
Optional 2nd Paper Feeder
X2
(Color Mode :
9.541567 MHz)
X1
(Monochrome Mode :
11.955543 MHz)
EEPROM
Tem./Humidity Sensor Circuit
Tem./Humidity Sensor
Fuser Unit I/F Circuit
Heat Roller Rotation Detection Sensor
Thermistor 1, 2
Fuser JAM Detection Sensor
Fuser Unit
Solenoid I/F Circuit
Paper Full/Jam
Sensor Circuit
Paper Full/Jam
Sensor Circuit
Exit Tray Paper Full Sensor
Rotation Switching Solenoid
(ADU Switchback Solenoid)
(ADU Switchback Solenoid)
Paper Jam Sensor
Paper Exit Block
Color Registration Circuit
WTC/Acc. Unit Detection Circuit
Waste Toner Full Sensor Circuit
WTC/Acc. Unit Detection Circuit
Waste Toner Full Sensor Circuit
Right Color Registration Sensor
Color Registration Sensor Board
Left Color Registration Sensor
WTC/Acc.Unit Detection Sensor
Waste Toner Full
Sensor Board
Waste Toner
Full Sensor
Print Cartridge I/F Circuit
Color Print Cartridge Virgin Sensor
Color Print Cartridge
Color Print Cartridge Virgin Sensor
Black Print Cartridge
Toner Empty Sensor Circuit
Toner Cartridge
Drive Unit
Drive Unit
(BK)
(Y)
(M)
(C)
Toner Empty Sensor Board
Toner Supply Solenoid Circuit
Toner Cartridge
Holder Unit
Holder Unit
Toner Supply Solenoid
Cam Ratchet Solenoid/
Changer Solenoid/
Acc. Cam Home Position
Sensor Circuits
Changer Solenoid/
Acc. Cam Home Position
Sensor Circuits
Mono/Color Changer Solenoid
Cam Ratchet Solenoid
(Acc. Cam Switching Solenoid)
(Acc. Cam Switching Solenoid)
Acc. Cam Home Position Sensor
Acc. Tension Unit
STD Cassette Paper Empty Sensor
Registration Sensor
Registration Clutch
Paper Feed Unit
MPT Paper Pickup Motor/
MPT Paper Detection Sensor/
MPT Home Position Sensor
Circuits
MPT Paper Detection Sensor/
MPT Home Position Sensor
Circuits
MPT Paper Detection Sensor
MPT Paper Pickup Motor
MPT Home Position Sensor
MPT Paper
Feed Block
Feed Block
STD Pickup Solenoid
Registration Sensor/
Paper Empty/
Registration Clutch/
Pickup Solenoid Circuits
Paper Empty/
Registration Clutch/
Pickup Solenoid Circuits
CMY OPC Home Position Sensor
Black OPC Home Position Sensor
Feed/BK Switching Solenoid
Main Drive Unit
PC/BK Drive Motor and PC/CMY Drive Motor
Black OPC/CMY OPC
Home Position Sensors/
BK Solenoid/BK Motor/
CMY Motor Circuits
Home Position Sensors/
BK Solenoid/BK Motor/
CMY Motor Circuits
STD Paper Size
Detection Circuit
Detection Circuit
STD Cassette
Paper Size
Detection Sensor
Paper Size
Detection Sensor
High Voltage Control Circuit
High Voltage Board
Dev.Bias, STR Bias, FTR Bias etc.
( Engine Control Board )
IC14
(ASIC)
Reg-Thermistor Sensor
KX-CL500 / KX-CL510
10
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