Oki MC160MFP Maintenance Manual page 186

Oki Data CONFIDENTIAL
17.3.6 0094: 2nd image transfer pressure/retraction failure
18.3.6 0094: 2nd image transfer pressure/retraction failure
Relevant electrical parts
2nd image transfer retraction position sensor
(PS3)
2nd image transfer pressure/retraction solenoid
(SD4)
Transport motor (M1)
Step Action
Check the M1 connector for proper connec-
1
tion and correct as necessary.
Check the SD4 connector for proper con-
2
nection and correct as necessary.
Check M1 for proper drive coupling and
3
correct as necessary.
Check SD4 for proper drive coupling and
4
correct as necessary.
Check the PRCB connector for proper con-
5
nection and correct as necessary.
6 PS3 sensor check
7 SD4 operation check
8
M1 operation check
9 Change M1.
10 Change SD4.
11 Change PRCB.
17.3.7 0300: Polygon motor malfunction
18.3.7 0300: Polygon motor malfunction
Relevant electrical parts
PH unit
Step Action
Check the cable and connector for proper
1
connection and correct as necessary.
2 Change PH unit.
3 Change PRCB.
44292401TH Rev.1
Print control board (PRCB)
WIRING DIAGRAM
Location (electri-
Control signal
cal component)
PRCB PJ12-3 (ON) C-2
PRCB PJ10-6 (REM) C-9
PRCB PJ8-1 to 6 C-2
Print control board (PRCB)
WIRING DIAGRAM
Location (electri-
Control signal
cal component)
18.3.8 0310: Laser malfunction
17.3.8 0310: Laser malfunction
Relevant electrical parts
PH unit
Step Action
Check the cable and connector for proper
1
connection and correct as necessary.
2 Change PH unit.
3 Change PRCB.
17.3.9 18.3.9 0500: Fuser warm-up failure 0500: Fuser warm-up failure
0503: Thermistor resistance failure
0503: Thermistor resistance failure
Relevant electrical parts
Fuser unit
Step Action
1 Change fuser unit.
1. Main switch is turned ON.
2. Open the top cover.
3. Press the following ten keys in this
2
order.
2 6 2 3 7.
4. Main switch is turned OFF/ON.
3 Change PRCB.
4 Change DCPU.
TROUBLESHOOTING
Print control board (PRCB)
WIRING DIAGRAM
Location (electri-
Control signal
cal component)
Printer control board (PRCB)
DC power supply (DCPU)
WIRING DIAGRAM
Location (Electrical
Control signal
component)
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