24xx
Power Service Check
| FRU | Action |
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1 | Power Supply | If the carrier does not move to the left after |
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| turning the printer off and then on, be sure the |
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| line cord voltage to the power supply is correct |
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| and the power supply outputs are +40 V dc at |
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| If the voltages are incorrect: |
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| • Check the internal fuse before replacing the |
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| power supply. Generally if F1 is blown, it is |
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| due to a short in the printhead; replace the |
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| printhead and the fuse before powering on |
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| again. |
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| • Be sure the power supply cable from the |
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| power supply to the logic board is not |
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| damaged and correctly installed. |
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2 | Operator Panel | If there is still a power LED problem, check the |
| Operator Panel | operator panel cable continuity and replace the |
| Cable | cable or the operator panel. |
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3 | Carrier Motor | Disconnect the carrier motor from logic board |
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| CN2 and turn the printer off and then on. If the |
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| power LED lights correctly only with the carrier |
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| motor disconnected, replace the carrier motor. |
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4 | Paper Feed Motor | Disconnect the paper feed motor from logic |
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| board CN1 and turn the printer off and then on. |
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| If the power LED lights correctly only with the |
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| paper feed motor disconnected, replace the |
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| paper feed motor. |
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5 | Printhead | Disconnect the printhead cable from the logic |
| Printhead Cables | board and turn the printer on. If the power LED |
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| lights correctly only with the printhead cables |
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| disconnected from the logic board, there is a |
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| short in the printhead or printhead cables. |
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| Disconnect the printhead cable from the logic |
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| board and be sure none of the leads on the |
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| cable are shorted to ground. |
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Diagnostic Information
