Oki 6E User Manual
Page 18
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Figure 2-2 OKIPAGE 6ex Block Diagram
PS Board with RAM
LocalTalk I/F (RS422 I/F)
Charge roller
Transfer roller
Developping
roller
Toner supply
roller
Cleaning
roller
Heater
High voltage
generation
circuit
Heater drive
circuit
LED Head
FAN
Drum Motor
Registration Motor
Resident RAM
1M x 16 DRAM
(2MB)
1 Chip CPU
Reset
circuit
Low voltage
generation circuit
AC
transformer
Toner low sensor
Paper out sensor
Outlet sensor
Paper sensor
Inlet sensor 2
Inlet sensor 1
Cover
open
switch
AC IN
+8V -8V 0V +5V +30V
CH TR DB
HEAT ON
Filter circuit
Centronics
parallel I/F
EEPROM
Power Supply
Board
FAN ALM
FAN Driver
M
M
Drum motor &
Registration motor
drive circuit
L6A-
For optional
RAM board
DATA
BUS
32 bit
16 bit
16 bit
Program & Font
ROM
4MB Mask ROM
7407
High Capacity
Second Paper
Feeder (Option)
Multi-Purpose
Feeder (Option)
1MB Memory Board
or
+5V
LSI
Thermistor