4-1-3 Error Solution
Display
Solution
60, 62, 68
1. Measure the resistance of the AC connector on the Fuser. Normal resistance is 2-4 ohms
for 110V, 6-8 ohms for 220V.
2. Check if the fuser lamp works properly.
3. Measure the resistance at Q7 on the engine board. If abnormal, replace U503,CN502,
70
1. Make sure that paper is loaded in the cassette.
2. Replace U555 sensor (photo interrupter).
3. Replace U7 on controller board.
71
1. Make sure that paper is loaded in the cassette.
2. Check for pick-up unit. If it is heavily worn, replace it with new one.
3. Replace U554 sensor.
4. Check if the feed clutch works properly.
5. If abnormal, replace the feed clutch or Q3 on the Engine board .
72, 73
1. Make sure that the paper being used meets the specification.
2. Check if there is a paper jam in the fuser.
3. Replace U554 on the engine board or exits ensor on the frame.
4. Check the fuser roller for any dirt. If dirty, clean the roller.
95
1. Check for CN11,CN6 on the Controller board.
2. Replace U5,OSC1 on the Engine board.
3. Replace LSU.
Troubleshooting
4-2
4-2 Abnormal Image Printing and Defective Roller
If abnormal image prints periodically, check the parts shown below.
No
Roller
Abnormal image period
Kind of abnormal image
1
OPC Drum
95.6mm
White spot/Black spot
2
Charge Roller
38.5mm
Black spot
3
Supply Roller
45.3mm
Horizontal density band
4
Develop Roller
47.1mm
Horizontal density band
5
Transfer Roller
56.1mm
Black side contamination/transfer fault
6
Heat Roller
69.3mm
Black spot and fuser ghost
7
Pressure Roller
72.5mm
Black side contamination
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