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Screen Stays Dark - Intermittent

HP Recommended
HP LaserJet Enterprise M806
I haven't gotten an answer yet on this question posted in January, so boosting it.
 
M806 Screen stays dark when coming out of Sleep Mode  

We just installed 3 M806 printers at a customer's site. The onsite IT person is reporting that on all 3 printers, intermittently the printers screens stay dark when coming out of Sleep Mode. The Home button seems to initiate wake up because the fans and motors start up. This was occurring with FutureSmart 3. The firmware has been upgraded to FutureSmart 4 (ver. 4.5.0.1) with no change in behavior. 

 

Seems unlikely that it's a hardware issue, since all 3 brand new printers are doing this. Any ideas?

 
 

UPDATE: I have still not resolved this issue, but I have more information. When the screen goes to sleep and is black, if you shine a flashlight at an angle on it, you can faintly see the HP logo bouncing around the screen, typical of a screen saver. Ether time it is black - when you can wake it up with a touch, or when it won't wake up - you will be able to see the screen saver with a flashlight. 

 

I replaced the Formatter Board on all three printers with no success. Sure would be nice if HP would chime in here and give me some input.  Smiley Frustrated

 

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HP Recommended

Sounds like teh control panel is faulty and may need to be replaced.

 

Check the connections of the control panel to the rest of the printer.  Sometiems its a simple USB connection.  Reseat the connection after a sleep mode incident and see if that helps brighten up the control panel.

 

Replace teh control panel as needed from there.

 

If you have any remaining warranty on the printer this would be a great one to call in and get support for.


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