black vertical line printed when scanning from charger only

[Bobbie271]

when scanning a document from the document feeder a vertical line appears at the right side of the scanned page (from top to bottom). This is not the case when the document is put directly on the glass.

So, I suppose that the problem is located on the feed but I don't know how to access it

Thanks for helping

[Valsimot]

Lift the document feeder to access the scanning glass and clean the scanning glass for the feeder.

[Bobbie271]

Already cleaned the glass but not related on it. I explaines that it only happens when charging the documents into the feeder. Putting the docs directly on the glass, the copy is perfect

[Valsimot]

You have 2 glass one for flatbed and one for document feeder, you need to clean the one for document feeder the smaller one on the left side.

[Bobbie271]

Thank you so much for your tip. But can you give some more detail pse? I can't find a second glass!! Have I to open the feeder to encounter it? And how can I open it?  Thanks in advance and sorry that I'm not really confident with these manips!!

Robert

[Valsimot · Accepted solution]

https://hp-officejet-5610.printerdoc.net/en/maintain-your-hp-all-in-one/clean-the-hp-all-in-one/clea... 

[Bobbie271]

Thank you so much, for all your tips and certainly your patience to respond to a real neophyte as me!!

Best and sincere regards

Robert