Service Checks
Carrier Transport Service Check
| FRU | Action |
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1 | System Board | Check the motor for binds, or loose motor pulley. |
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| Turn the printer off and disconnect N6 from the |
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| system board. Check for motor pins shorted to the |
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| motor housing. If you find a pin shorted to the |
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| housing, replace the motor. If the failure remains, |
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| replace the system board. |
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2 | Carrier Transport | A noisy or chattering motor or a motor that fails to |
| Motor | turn can be caused by: |
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| • An open or short in the motor. |
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| • An open or short in the motor driver on the |
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| system board. |
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| • A bind in the carrier transport mechanism. |
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| With the carrier transport motor cable |
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| disconnected from the system board, check for |
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| zero to ten (0 - 10) ohms between the following |
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| pins on the motor: |
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| |
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| |
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| If the readings are incorrect, replace the motor. |
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3 | Carrier Guide Rod | Clean the carrier rod. |
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| Note: Lubricate the carrier guide rod and the |
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| carrier rod bearing surface with grease P/N |
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| 1329301. |
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4 | Carrier Transport | Check for worn, loose or broken parts. Check for |
| Belt | obstructions blocking carrier movement. |
| Idler Pulley Parts |
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| Carrier Frame | Carrier to carrier frame engagement should be |
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| lubricated with grease P/N 1329301. |
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Diagnostic Information
