Oki 4M User Manual
Page 16
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Figure 2-1 Block Diagram (OKIPAGE 4m)
EEPROM
Parallel
I/F
LED head
Main motor
Electromagnetic
clutch
Sensors
TEMP
TR-VSEN
TR-ISEN
Reset
circuit
10 MHz
MSM65917
(nX-8 core)
Address
latch
EPROM
(52 KByte)
OE
CS
A8 ~ A15
AD0 ~ AD7
A0 ~ A7
D0 ~ D3
A0 ~ A10
D0 ~ D7
D-RAM
(512 KByte)
D-RAM
(2 MByte)
Driver
High-voltage power I/F
LED
HEAT ON
5V
5V
OVL
CN
Parallel
I/F
Parallel
I/F
LED head
Main motor
Electromagnetic
clutch
LS07
Driver
Main motor
Electromagnetic
clutch
LED head
Driver
Driver
AC output ON/OFF
Switching
power supply
<Power Supply Unit>
<Main Control Board>
<High-voltage Power Supply Board>
LED
Thermistor
EP cartridge
Heater
(Halogen lamp)
AC
(120 V/230 V)
Manual feed sensor
Paper sensor
Outlet sensor
Toner sensor
Cover open switch
LED
Sensors
TEMP
High-voltage
power I/F
TR-VSEN
TR-ISEN
HEAT ON
+24 V +5 V
0VL 0VP
M
High voltage
power
supply
option
Driver IC
Mac I/F
(Option RAM-PCB)