Service Tests and Utilities
7If the test passes, then the following message will appear on the front panel:
DROP DETECTOR
BLOCKED DD: PASS
GHOST DROPS: PASS
WARNING | IF THIS TEST PASSES, DO NOT REPLACE THE DROP | ||||
| DETECTOR. | ||||
| If there is a problem with the Drop Detector then the following | ||||
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| DROP DETECTOR |
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| Blocked DD: Fail |
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| Code: 00XXXX:0000XX |
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In this case, to resolve the problem, try the following:
1Check that the Drop Detector Cable is NOT broken or damaged.
2Check that the Drop Detector cable is correctly connected to the Service Station Cable.
3Check that the Service Station Cable is NOT broken or damaged.
4Remove the Drop Detector and make sure that there are no obstacles inside which are blocking the sensor.
5Replace the Drop Detector Assembly ⇒ Page
6If the test continues to fail, replace the Electronics Module ⇒ Page
WARNING | Only replace one component at a time and try the Service Test |
| again before replacing another component. Using this procedure |
| you will be able to determine exactly which component failed. |
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HP DesignJets 1050C and 1055CM Printers Service Manual |