Document feeder scan has black lines

[PaddyM41]

Scanning from document feeder has two black lines the length of page. ONLY with Document Feeder - scanning from glass is fine.   Dirty roller somewhere?  Fairly new printer/scanner - document feeder hardly used.

[Andr-1611]

Hello PaddyM41,
Welcome to the HP Support Community!

you have to do that (only the small glass surface):

But while we're at it, let's do it properly:

😉

Kind Regards
Andr-1611

If my post resolved your problem please mark this post as an "Accepted Solution".
Or click on the YES button to reply that the response was helpful and/or to say “Thank You”.

[DanyAvi]

Accepted Solution".

[PaddyM41]

Not quite fixed - but the two black lines are now just one, so obviously on the right track!   Thank you.   Being a new (6 months old) printer/scanner, I had not realised that it had two scan glasses.  Thank you again.   I'll keep at it.

[Andr-1611 · Accepted solution]

Scan a blank A4 and upload here.

Save as jpg, 300 dpi, unchanged upload here, click on the icon "Insert photos", "Set format = Large", original size.

I'll take a close look at it.

[PaddyM41]

Andre-611 - All fixed!    Scan output from doc feeder now pristine again.   Thanks.    Had a really close look at the 'small' scanner glass - saw a slight mark of smething that I removed with spectacles glass cleaner on a soft lint-free cloth.  Excellent tip!   Thanks again!

[Andr-1611]

@PaddyM41 

Thanks for your feedback.

You are very welcome. I am pleased that I was able to help you.

Kind Regards
Andr-1611