4402-001
Power Service Check
| FRU | Action |
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1 | External Power | Plug the external power supply into an outlet. |
| Supply | Check for + 30 V dc. If voltage is incorrect, replace |
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| the power supply. |
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2 | Printhead Cable | Unplug the printer. Disconnect the printhead cable |
| Paper Feed Motor | and plug in the printer. Look for a symptom |
| Carrier Transport | change. Check the failing part for shorts and |
| Motor | replace as necessary. |
| Operator Panel | Repeat this procedure for the carrier transport |
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| motor, paper feed motor, and operator panel. |
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3 | System Board | If the symptom has not changed, replace the |
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| system board. Go to the “System Board |
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| Removal” on page |
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