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Hp 9055mfp front door's open error msg

Last response: in Computer Peripherals
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August 3, 2010 7:16:26 PM

Hi, everybody.

There's a message on the screen - "close front door". All doors are closed. Input checks 25-2, 25-3, 25-7 gives LOW level, i.e. closed. But 25-4 (Front door open/close detection SW signal) is HIGH. Can anybody explain, what is it?
August 4, 2010 12:56:18 AM

Sounds like the front doors aren't latched. Either that, or the sensor is malfunctioning.
August 4, 2010 6:47:39 PM

aford10 said:
Sounds like the front doors aren't latched. Either that, or the sensor is malfunctioning.

Doors are latched for sure. I suspect +24V distribution now. Have no block diagrams, so in a trouble. Thanks
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