1.7 PAPER FEED
SC500: Transport motor lock
- Definition - [B]
The transport motor lock signal is detected for more than 3 seconds.
- Possible causes -
• Too much load on the transport unit, fusing unit, transfer roller unit, or
transfer belt cleaning unit
• Transport motor defective or poor connection
• Interface board 2 defective or poor connection (CN806)
• Main control board defective
SC502: 1st tray lift motor abnormal
SC503: 2nd tray lift motor abnormal
SC504: 3rd tray lift motor abnormal
- Definition - [C]
The lift sensor is not activated within 10 seconds after the lift motor starts
turning. The SC message for level C is displayed when this condition is
detected twice.
- Possible causes -
• Lift sensor defective
• Tray lift motor defective or poor connection
• Paper feed interface board defective or poor connection (CN906)
• Main control board defective
SC510: Paper feed motor abnormal
- Definition - [B]
The paper feed motor lock signal is detected for more than 3 seconds.
- Possible causes -
•
Too much load on the paper feed mechanism
•
Paper feed motor defective or poor connection
•
Paper feed interface board defective or poor connection (CN910)
•
Main control board defective
Trouble -
shooting
SM 6-17 A172/A199
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