Oki MC560 MFP CX2032, Service & Troubleshooting Manual

Page: 27 / 91

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Is cable between PU board and
high-voltage power unit connected
properly? No
Yes
Connect properly.
Check improper connections for HV.
Service call
121:Error High-voltage power
supply I/F error.
Is there no improperly
connections? No Replace high-voltage power supply.
Is fan in low-voltage power supply
unit operating?
No
Yes
Check connections for connector of
fan.
Replace low-voltage power supply.
Service call
122:Error Low-voltage power
supply fan error. Low-
voltage power supply
temperature
error.
Is fan connector connected
properly?
No
Yes
Replace fan motor.
Replace low-voltage power supply.
Service call
123:Error Abnormal environment
humidity / Not connected
humidity sensor. Does error reoccur? Yes Power OFF/ON Replace the operator
panel PCB (PRP)
Service call
124:Error Abnormal environment
temperature. Does error reoccur? Yes Power OFF/ON. Replace the
operator
panel PCB(PRF)
Condensation is likely to occur
when machine is moved from cold
to warm environments. Allow
printer to come to temperature for a
few hours. Yes Turn on the printer again after it is
allowed to stabilize in the
environment.
Service call
126:Error Condensation in the
printer was detected.
Does the error reoccur?
Yes
Replace the operator panel PCB
(PRP)
Is fan connector connected
properly? No
Yes
Connect properly again.
Replace fan motor
Service call
127:Error Error detected at the
fuser unit cooling fan.
Does error reoccur? No Replace PU PCB (PRF)
Is LED head properly set? No Install the LED head unit properly.
Is the LED head fuse blown out?
Yes Check the LED head fuse.
Change the fuse.
Service call
131 ~ 134 Error LED head fault detected.
131 = Yellow
132 = Magenta
133 = Cyan
134 = K (Black)
Does error reoccur? Yes Replace the LED head unit.
Is ID unit set properly? No Reset ID unit. Service call
140 ~ 142 Error Error detected at ID
position Up / Down
140= Y, 141= M, 142 = C
Does error reoccur? Yes Replace ID Up/Down sensor.
Is ID unit setting proper?
No
Reset ID unit. Service call
150 ~ 153 Error ID unit fuse cannot be
disconnected.
150 = Y, 151 = M,
152 = C, 153 = K
Does error reoccur?
Yes
After checking connections of cable
between PRT board and PU PCB,
replace PRT PCB.
Service call
154:Error Belt unit fuse cannot be
disconnected. Is belt unit setting proper?
Does error reoccur? No
Yes Reset belt unit.
Check cable connections. replace PU
PCB(PRF)
Service call
155:Error
Fuser unit fuse cannot
be disconnected. Is fuser unit set properly?
Does error reoccur? No
Yes
After cleaning fuser connector, reset
Check cable connections
and replace PU PCB (PRF)