2 - 2
Figure 2-1 OKIPAGE 12i Block Diagram
1MB Memory Board
(Option)
RS232C Interface Board
(Option)
Network Interface Board
(Option: ODA/INT)
or
Program & Font ROM
16MB Mask ROM
(8MB x 2)
Resident RAM
2MB x 2 DRAM
(4MB)
For optional board
Main Control Board
Power Supply
Board
or
DATA
BUS
(32bit)
EEPROM
74LS07
Inlet sensor 1
Inlet sensor 2
Paper sensor
Outlet sensor
Paper out sensor
Toner low sensor
Reset
circuit
Centronics
parallel I/F
1 Chip CPU
Drum motor &
Registration motor
drive circuit
FAN Driver
FAN ALM
HEAT ON
Low voltage
generation circuit
LSI
AC
transformer
High voltage
generation
circuit
Charge roller
Transfer roller
Developping
roller
Toner supply
roller
Cleaning
roller
FAN
LED Head
M
M
Registration Motor
Drum Motor
High Capacity
Second Paper
Feeder (Option)
Multi-Purpose
Feeder (Option)
Operation Panel
+8V -8V 0V +5V +30V
Cover
open
switch
Fusing temperature
control circuit
Heater drive
circuit
Filter circuit
AC IN
Heater
Thermistor
Summary of Contents for OKIPAGE 12i Series
Page 6: ...1 CONFIGURATION...
Page 12: ...1 6 7 Flash memory SIMM...
Page 17: ...2 OPERATION DESCRIPTION...
Page 48: ...3 PARTS REPLACEMENT...
Page 52: ...3 4 Upper cover unit Figure 3 2 Upper cover...
Page 80: ...4 ADJUSTMENT...
Page 88: ...5 PERIODICAL MAINTENANCE...
Page 92: ...6 TROUBLESHOOTING PROCEDURES...
Page 125: ...6 33 Figure 6 5 Contact Power supply sensor board Contact plate for transfer roller...
Page 126: ...7 WIRING DIAGRAM...
Page 140: ...8 PARTS LIST...
Page 144: ...8 4 Figure 8 2 Upper cover unit 1...
Page 168: ...E 1 Appendix E Multi Purpose Feeder Maintenance...
Page 187: ...E 20 5 2 PCB Layout OLEV 11 PCB CN3 CN2 SEN2...
Page 188: ...E 21 6 PARTS LIST Figure 6 1 Multi Purpose Feeder 9 5 7 6 4 1 2 3 8...
Page 190: ...F 1 Appendix F High Capacity Second Paper Feeder Maintenance Manual...
Page 206: ...F 17 5 2 PCB Layout TQSB 2 PCB CONTROLLER MOTOR DRIVER SEN2 SEN1 OSC PU MOTOR...
Page 207: ...F 18 Figure 6 1 High Capacity Second Paper Feeder 1 2 4 3 5 6 PARTS LIST...
Page 210: ...F 21 SECTION1 CABINET CASSETTE ASSEMBLY 5 6 3 25 2 4 7 8 1...
Page 211: ...F 22 SECTION2 MECHANICAL ASSEMBLY 21 9 11 10 12 13 23 22 14 24 15 16 17 19 18 20 A A B B...
Page 213: ...G 1 Appendix G Network Option Board Maintenance...