41316401TH Rev.9
110 /
Oki Data CONFIDENTIAL
6
Motor Fan Error
•
Does the low voltage power supply fan run after power-on?
•
No
Is 32V output to the fuse FU502 of the engine board (71K PWB)?
•
No
Is 32V output to the power connector of the engine board (71K PWB)?
32V: Pins 7, 8, 9 and 10
No
Replace the low voltage power unit after checking the cable connection.
▼
•
Yes Replace the engine board.
▼
•
Yes Has the low voltage power supply fan replaced?
Yes End
▼
•
No
Replace the low voltage power supply fan.
▼
•
Yes
Does the engine board fan rotate after power-on?
•
No
Is 32V output to the fuse FU502 of the engine board (71K PWB)?
•
No
Is 32V output to the power connector of the engine board (71K PWB)?
32V: Pins 7, 8, 9 and 10
No
Replace the low voltage power after checking the cable connection.
▼
•
Yes Replace the engine board.
▼
•
Yes Replace the fan of the engine board.
▼
•
Yes
End
Summary of Contents for C7400
Page 14: ...41316401TH Rev 9 14 Oki Data CONFIDENTIAL 2 2 Parts layout Figure 2 1 A B A B B A A B...
Page 15: ...41316401TH Rev 9 15 Oki Data CONFIDENTIAL Top Cover Assy Figure 2 2...
Page 16: ...41316401TH Rev 9 16 Oki Data CONFIDENTIAL Printer Unit 1 2 Figure 2 3 A A...
Page 17: ...41316401TH Rev 9 17 Oki Data CONFIDENTIAL Printer Unit 2 2 Figure 2 4 45...
Page 18: ...41316401TH Rev 9 18 Oki Data CONFIDENTIAL Cassette Guide Assy L R Figure 2 5 A B B A C C C C...
Page 19: ...41316401TH Rev 9 19 Oki Data CONFIDENTIAL Duplex Unit A B D C A B C D E E F G G F Figure 2 6...
