Hp 9055mfp front door's open error msg

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?
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More about 9055mfp front door open error
  1. Sounds like the front doors aren't latched. Either that, or the sensor is malfunctioning.
  2. 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
  3. Here is a link that will give you the service manual hope that helps you http://image1products.com/techdocs.new/
  4. mciros1 said:
    Here is a link that will give you the service manual hope that helps you http://image1products.com/techdocs.new/

    Thanks, amigo. Useful link for me
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