What causes lines on a scanned document

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vertical line on my scanned document

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‎11-03-2011 10:33 AM

RE: HP Office Jet Pro 8500 wireless; verticle line appears about 1 inch from my left margin on all scanned documents. Any ideas for me? Thanks, T

ShlomiL

‎11-03-2011 12:09 PM - last edited on ‎04-18-2016 03:02 PM by OscarFuentes

Does the same issue appear by placing the original both on the Scanner glass or the top document feeder?

Can you see the same by copying?

From my experience, the issue most likely appear due to dirty or dusty scanner glass, try cleaning it according the steps below and check for any improvement.

Please let me know of any improvement.

Click the Yes button to reply that the response was helpful or to say thanks.
If my post resolve your problem please mark it as an Accepted Solution

‎01-03-2012 02:27 PM

Cleaned and cleaned but vertical line still shows up on scanned documents that went through feeder. Again, vertical line doesn't show up on documents scanned on the glass:(

‎01-03-2012 06:34 PM

Hi, I am having the same type issues, and I came across your question. My problem is totally different now that I have read your issue but knowing or thinking I know how your printer works, maybe I can help.

Your 8500 pulls the paper through the feeder and is only seen by the scanning surface on the far left (when looking at the printer) when it passes under a paper roller. That is the reason that when you place doc's to be scanned on the glass you have no issue with lines. This is the scanning glass that is probably dirty, not the entire glass surface like the above link mentions to clean. And to be exact the problem that you may find is a little spec or dot of whiteout or something of the like that has dried onto the small glass surface. When the doc passes over the spec, it looks as though it is a line on the printed page because the scanner is not moving during this scan procedure (as it does when you place your doc on the scan glass).