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HP Recommended
HP ENVY 7640 e-All-in-One Printer
Microsoft Windows 10 (32-bit)

Automatic Document Feeder (ADF) has recently (about 6 months) become totally inoperative. The printer motherboard  can't detect whether there are documents in the input tray. The HP scan software allows you to select the scanner glass as a default so, to copy a document I have to scan it to my computer, then print the scanned document. I believe the paper sensor within the ADF has failed. How to repair or replace the paper sensor?  

3 REPLIES 3
HP Recommended

I am also having problems with the automatic document feeder on my HP Officejet Pro 6978.  I don't know whether it is a software problem or a broken part.

HP Recommended

Hi @cvneumann,

 

Welcome to the HP Support Community

 

I understand you are facing an issue with your HP Officejet Pro 6978. Not to worry I will help you to get a resolution to resolve the issue.

 

Let's perform a power drain: 

  • With the printer turned on, disconnect the power cord from the rear of the printer and also unplug the power cord from the wall outlet.
  • Remove USB cable, if present.
  • Wait for 2-3 minutes, press and hold the power button on your printer for about 30 seconds to remove any additional charge.
  • Now plug back the power cable straight to a wall outlet without any surge protector or an extension cord (This is important) and then plug back the power cord to the printer.
  • Turn on the printer and wait till warm-up period finishes and the printer is idle

Update the printer firmware 

 

  • Click here to download and install the latest printer firmware from your product
  • Click here to know different methods of updating printer firmware.

If the issue still persists, I'm sending out a private message to assist you with the next course of action. 

 

Please check your Private message icon on the upper right corner of your HP Community profile Next, to your profile Name, you should see a little blue envelope, please click on it or simply click on this link.If the issue persists, then please follow the steps mentioned in this document:

 

Hope this helps! Keep me posted. 

 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!


ANAND_ANDY
I am an HP Employee

HP Recommended

The automatic paper feed seems to be working for the Copy function but not the Scan function.  My printer says it has the most recent firmware.

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