4026-0XX
Exit Sensor Service Check
| FRU | Action | |
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1 | Engine Board | Disconnect the exit sensor cable from the | |
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| engine board. Check for +4.5 V dc to +5.5 V dc | |
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| at | |
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2 | Exit Sensor | Be sure the exit sensor is snapped in place and | |
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| the cable is firmly connected. | |
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3 | Exit Sensor | Check the flag for damage and free movement | |
| Flag | and replace as necessary. Be sure the exit sen- | |
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| sor spring is properly installed and not discon- | |
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| nected, damaged, or missing. | |
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| Reconnect the exit sensor cable and check the | |
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| voltage at | |
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| press the exit sensor flag. The voltage should | |
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| change as the flag is moved in and out of the | |
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| sensor. If incorrect, replace the exit sensor. | |
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4 | Exit Sensor | Check the continuity of the cable. If incorrect, | |
| Cable | replace the exit sensor cable. | |
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Fan Service Check |
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| FRU | Action |
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1 | Engine Board | Turn the printer power off. Disconnect CN11 |
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| on the engine board. Turn the printer on and |
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| measure the voltage between |
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| mately +24 V dc. If incorrect, replace the |
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| engine board. |
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| If correct, turn the printer off and connect |
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| CN11. Monitor the voltage between ground |
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| and |
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| on the printer. The voltage should go from +24 |
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| V dc with the fan motor off to approximately 0 |
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| V dc when the motor turns on. If incorrect, |
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| replace the fan motor and cable assembly. |
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2 | Fan Motor/ | Be sure the fan is properly installed if the fan |
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| Cable | is noisy. If correct, replace the fan motor |
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| assembly. |
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