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Oki Data CONFIDENTIAL
44043511TH Rev.2
210 /
Halogen Lamp
Thermistor
Bottom of Fuser Unit
1 2 3 4 5 6
4 3
7 6 5 4 3 2 1
2 1
6 poles
7 poles
Halogen Lamp
7-pole side
Pins 1 & 2: Non contact
Pins 3 & 4: Correction
Pins 5 & 6: Side thermistor
6-pole side
Pins 1 & 2: Lower thermistor
Fuser Unit Error
• Immediately after turning ON the power, does a fuser error occur?
(A)
• YES
Are the three Upper Roller Thermistors down or short-circuited? (See
Figure 7-1.)
At an ambient temperature between 0 and 43˚C: 7-pole side:
Pins 1 & 2 = 4194 to 696.6k
Ω
Pins 3 & 4 = 642.1 to 122.4k
Ω
Pins 5 & 6 = 642.1 to 122.4k
Ω
YES
Replace the fuser unit.
• NO
Is the thermistor on the lower side down or short-circuited? (See Figure 7-1.)
At an ambient temperature between 0 and 43˚C: 6-pole side:
Pins 1 & 2 = 642.1 to 122.4k
Ω
YES
Replace the fuser unit.
• NO
• NO
After turning ON the power, wait 3 minutes. Does a fuser unit Error occur?
NO
Go to (A).
• Is the fuser unit heater ON? (Is it HOT?)
• YES
Replace the engine control PCB.
• NO
Replace the fuser unit.
•NO
Is there an AC voltage output between Pin 1 and Pin 3 of the CN1 connector of the
Low Voltage Power Unit?
NO
Replace the low voltage power unit.
• YES
Replace the fuser unit.
Figure 7-1
Summary of Contents for C910
Page 1: ...Oki Data CONFIDENTIAL Model X Maintenance Manual 032007A...
Page 13: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 12 6 Finisher Unit 5 Tray except for China...
Page 94: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 93 4 2 Parts Layout MAIN ViewA Next page C910 Only...
Page 95: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 94 600dpi 1200dpi Air Flow Air Flow Air flow ViewA...
Page 96: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 95 Printer Unit 120V 230V 1 2 See next page...
Page 97: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 96 Printer Unit 120V 230V 2 2 A A...
Page 98: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 97 Plate Assy Power_120V 230V...
Page 99: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 98 Base Assy 1 2...
Page 100: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 99 Base Assy 2 2 A A...
Page 101: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 100 Side R Assy...
Page 102: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 101 Side F Assy C910 Only...
Page 103: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 102 Duct Drive Assy...
Page 104: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 103 FDR Unit Regist A A C C B B...
Page 105: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 104 FDR Unit MPT A A 2...
Page 106: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 105 Eject Assy...
Page 107: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 106 Plate Top Assy...
Page 108: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 107 Job Offset Assy...
Page 109: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 108 Basket Assy...
Page 119: ...Oki Data CONFIDENTIAL 44043511TH Rev 2 118 Plate Top...