Oki MC770 series Maintenance Manual - page 193
45376001TH Rev.1
192 /
Oki Data CONFIDENTIAL
7. Troubleshooting and repair procedure
Duplex unit
Printer main unit
IN
sensor
Cover open
sensor
Front
sensor
Bottom
sensor
DUPLEX clutch
Separator
solenoid
DUPLEX
motor
Printer main unit
3rd TRAY
2nd
paper end
sensor
Hopping
sensor
2nd IN
sensor
2nd paper
size switch
Feed clutch
Feed
transport
motor
SNS03
SNS12
SNS4
CL1
CL2
MO
TO
R
MAIN1
FA
N
DUPLEX
FAN
SNS03
SNS12
PSZ
CL1
Hopping clutch
CL2
M
OTO
R
MAIN1
MAIN2
Board-GOH-11
2nd Tray
(3rd Tray/4th Tray)
Board-GOH-10
FAX Control PCB
FAX LINE
PCB
OPE
COIN
Controller
WLAN
Antenna
DIMM
HDD
HOST
USB
(Front)
HAND
SET
LCD
Speaker
RFID PCB
Finisher Unit
Stapler
CM_ID
Motor
YK_ID
Motor
Stapler Cover SW
KYMC
LED HEAD
Stacker full sensor
ID
FAN
M
HEAT
Low-voltage PCB
Toner sensor
PCB
Environment sensor
PCB
Front sensor PCB
(WR,IN1,IN2)
Hopping
clutch
MPT
clutch
Regist
clutch
1st P.E sensor
HOP sensor
M
ID UP
M
BELT
Paper size SW
M
HOP
AC
Inter Lock SW
High-voltage PCB
Fuser
FAN
Low-voltage
FAN
FAX
TEL
USB
LAN
Unit-CIS
FB
Motor
Rear Cover
SW
Relay PCB
Fuser
Option
Option
Scan sensor
HOP sensor
Regist sensor
Reverse sensor
Cover Open sensor
Paper Set sensor
M
ADF
solenoid
Clutch
Clutch
FB Home Position sensor
PU PCB
ADF Relay
PCB
CU PCB
SU PCB
Option
Duplex unit
2nd Tray unit
3rd Tray unit
4th Tray unit
WLAN
HOST
USB
①
①
⑭
⑰
⑮
⑯
⑱
⑬
⑫
⑪
⑲
⑨
② ⑩ ⑥
⑦
⑤
⑦
⑳
⑳
③
④
⑧
⑳
⑳
㉞
㉓
㉒
7.5.4. (19) Wiring diagram