44292401TH Rev.1
185 /
Oki Data CONFIDENTIAL
TROUBLESHOOTING
18.3.8
0310: Laser malfunction
18.3.9
0500: Fuser warm-up failure
0503: Thermistor resistance failure
Relevant electrical parts
PH unit
Print control board (PRCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (electri-
cal component)
1
Check the cable and connector for proper
connection and correct as necessary.
2
Change PH unit.
3
Change PRCB.
Relevant electrical parts
Fuser unit
Printer control board (PRCB)
DC power supply (DCPU)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electrical
component)
1
Change fuser unit.
2
1.
Main switch is turned ON.
2.
Open the top cover.
3.
Press the following ten keys in this
order.
2
o
6
o
2
o
3
o
7.
4.
Main switch is turned OFF/ON.
3
Change PRCB.
4
Change DCPU.
17.3.8
0310: Laser malfunction
17.3.6
0094: 2nd image transfer pressure/retraction failure
17.3.9
0500: Fuser warm-up failure
0503: Thermistor resistance failure
18.3.6
0094: 2nd image transfer pressure/retraction failure
18.3.7
0300: Polygon motor malfunction
Relevant electrical parts
2nd image transfer retraction position sensor
(PS3)
2nd image transfer pressure/retraction solenoid
(SD4)
Transport motor (M1)
Print control board (PRCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (electri-
cal component)
1
Check the M1 connector for proper connec-
tion and correct as necessary.
2
Check the SD4 connector for proper con-
nection and correct as necessary.
3
Check M1 for proper drive coupling and
correct as necessary.
4
Check SD4 for proper drive coupling and
correct as necessary.
5
Check the PRCB connector for proper con-
nection and correct as necessary.
6
PS3 sensor check
PRCB PJ12-3 (ON)
C-2
7
SD4 operation check
PRCB PJ10-6 (REM)
C-9
8
M1 operation check
PRCB PJ
8
-1 to 6
C-2
9
Change M1.
10
Change SD4.
11
Change PRCB.
Relevant electrical parts
PH unit
Print control board (PRCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (electri-
cal component)
1
Check the cable and connector for proper
connection and correct as necessary.
2
Change PH unit.
3
Change PRCB.
17.3.7
0300: Polygon motor malfunction
Summary of Contents for MC160MFP
Page 1: ...MC160MFP Maintenance Manual 011710A...
Page 18: ...44292401TH Rev 1 17 Oki Data CONFIDENTIAL MC160n Main body THEORY OF OPERATION...
Page 55: ...44292401TH Rev 1 54 Oki Data CONFIDENTIAL Auto Document Feeder Unit THEORY OF OPERARTION...
Page 61: ...44292401TH Rev 1 60 Oki Data CONFIDENTIAL MC160n Main body FIELD SERVICE...
