41956001TH Rev.1
145 /
Oki Data CONFIDENTIAL
5
Fuser unit error
•
Do fuser errors occur right after power ON?
(A)
•
Yes Is the heat roller thermister disconnected or generating a short circuit? (See Fig. 6-1)
(Approx. 190k-980k
Ω
in room temperature of 0-43 degrees Celsius.)
•
Yes Replace the fuser unit.
▼
•
No
Is the back-up roller thermister disconnected or generating a short circuit? (See Fig. 6-1)
(Approx. 190k-980k
Ω
in room temperature of 0-43 degrees Celsius.)
•
Yes Replace the fuser unit.
▼
•
No
▼
•
No
Does a fuser unit error occur approx. three minutes after power ON?
•
No
Proceed to (A).
▼
•
Is the heater in the fuser unit turned ON? (Is it hot?)
•
Yes Replace the engine board.
▼
•
No
Replace the fuser unit.
▼
•
No
Is AC voltage output between CN1 connector pin 1 and pin 3 in the low-voltage power unit?
•
No
Replace the low-voltage power unit.
▼
•
Yes
Replace the fuser unit.
Figure 6.1
▼
Back-up roller thermister
Heat roller thermister
Summary of Contents for C9500dxn
Page 48: ...41956001TH Rev 1 48 Oki Data CONFIDENTIAL 3 2 Parts Layout Figure 3 1...
Page 49: ...41956001TH Rev 1 49 Oki Data CONFIDENTIAL Figure 3 2 Top Cover Assy...
Page 50: ...41956001TH Rev 1 50 Oki Data CONFIDENTIAL Figure 3 3 Printer Unit 1 2...
Page 51: ...41956001TH Rev 1 51 Oki Data CONFIDENTIAL Figure 3 4 Printer Unit 2 2...
Page 52: ...41956001TH Rev 1 52 Oki Data CONFIDENTIAL Figure 3 5 Cassette Guide Assy L R...
Page 53: ...41956001TH Rev 1 53 Oki Data CONFIDENTIAL...
Page 54: ...41956001TH Rev 1 54 Oki Data CONFIDENTIAL A B C D E A B C D E Figure 3 6 Duplex Unit...
Page 112: ...41956001TH Rev 1 112 Oki Data CONFIDENTIAL Pattern 5 Pattern 6 Pattern 7...
Page 178: ...41956001TH Rev 1 178 Oki Data CONFIDENTIAL 37 26 33 38 32 39 38 31 34 35 36 27 Figure 8 1 3 3...