1)Press and hold [ON]
2)press and release [E]
3)release [ON]
Press [ON] [C] to stop the selftest.
You will see a screen
similar to the one in the picture.
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If not, it has problems and probably needs service.
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To start the selftest,
1)Press and hold [ON] |
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|
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If your HP executes properly the selftest it is working well. If not, it has problems and probably needs service. | ||