Oki C7500n Maintenance Manual page 111

Message Cause
Service Call Option unit for different
110: Error model detected.
~
116: Error
110: Envelope
Feeder
111: Duplex unit
112: 2nd Tray
113: 3rd Tray
114: 4th Tray
115: 5th Tray
116: Finisher
Service Call PU unit fan motor error.
120: Error
Service Call High-voltage power
121: Error supply I/F error.
Service Call Low-voltage power
122: Error supply fan error.
Low-voltage power
supply temperature error.
Service Call Improper environment
123: Error humidity detected by
sensor.
Service Call Improper environment
124: Error temperature detected
by sensor.
Service Call Error detected at MT
125: Error home position.
Turn power Sensor dew error.
OFF and wait
126: Dew
error
Service Call Temperature rise
130: Error detected at LED head.
Service Call Same unit not detected
131: Y Head upon power ON or
132: M Head opening cover.
133: C Head
134: K Head
Service Call Error detected at
140: Y ID proper ID position.
141: M ID
142: C ID
143: K ID
Service Call When a fuse could not
150: Y be disconnected in the
151: M ID unit.
152: C
153: K
Service Call When belt unit fuse
154: Error cannot be disconnected.
Service Call When fuser unit fuse
155: Error cannot be disconnected.
41955801TH Rev.8
Table 5-1-1 Operator Alarm (3/6)
Error Description
Is a proper option unit for the printer set?
1) Is fan in PU unit operating?
2) Error reoccurs after replacing fan motor.
Is cable between PU board andhigh-
voltage power LSI connected properly?
1) Is fan in low-voltage power supply unit
operating?
2) Error reoccurs after replacing fan motor.
1) Is error message displayed?
2) Does error reoccur?
1) Is error message displayed?
2) Does error reoccur?
1) Is error message displayed?
2) Does error reoccur?
Sensor dew error detected.
1) Is error message displayed?
2) Does error reoccur?
1) Is error message displayed?
2) Is LED head properly set?
3) Does error reoccur?
1) Is error message displayed?
2) Does error reoccur?
Is ID unit set properly?
Is belt unit set properly?
Is fuser unit set properly?
Oki Data CONFIDENTIAL
Solutions
Yes Set proper option unit.
No Check connections and turn power
ON. If error is not recovered, replace
the unit.
No Replace fan motor.
Yes Replace engine control board.
Yes Replace engine control board.
No Connect properly.
Yes Replace high-voltage power supply.
Check improper connections for
high-voltage.
No Replace fan motor.
Yes Replace low-voltage power supply.
Yes Replace low-voltage power supply.
Yes Turn ON power again.
Yes Replace humidity sensor.
Yes Turn ON power again.
Yes Replace humidity sensor.
Yes Turn ON power again.
Yes Replace MT.
Turn ON power after a while.
Yes Leave alone for 30 min.
Yes Turn power OFF. Leave for 30 min.,
Yes then turn power ON. Replace LED
head.
Yes Confirm that LED head is set properly.
No Turn power ON again.
Yes Replace LED head assembly.
Yes Turn power ON again.
Yes Replace drum assembly.
Yes Check cable connections and replace
engine board.
Yes Check cable connections and replace
engine board.
Yes Check cable connections and replace
engine board.
111 /