Scanner Paints a Vertical Black Line

[nhmartens]

First, the only option on the drop down menu is shown above.  I actually have the HP ScanJet pro 2500 [n] scanner so I hope this discussion still applies.

When I scan a document using the feeder it puts a black line down the entire page (approximately 1 5/8 " from the left edge of the paper).  I have included images showing the problem.

Image #1:

Part of the top of the page showing the vertical line.  It extends from the very top to the very bottom of the page:

Image #2:

 The feeder under the hood.  The left side of the image is the left edge of the page:

Image #3:

Tthe underside of the feeder.  The top edge of the image is the left side of the page.

I hope it's just a matter of cleaning something with a little isopropyl alcohol but I can't see any movable or rotating part that can draw a line down the length of the page (like a roller). 

I would really appreciate any ideas along with detailed instructions (e.g. what needs to be disassembled) on how to access the part required to apply the alcohol.

Thanks.

[nhmartens]

Should have added one more piece of information.  The line does NOT appear when I bypass the feeder and place the paper on the glass top directly.  So I KNOW it's the feeder mechanism.

Thank you.

[Repairatrooper · Accepted solution]

You have debris or Mark on the glass. Clean the glass suits thoroughly with a dampened lint free cloth. Use you r finger nail to lose any stubborn remains. This is not a mechanical issue or you would see it when scanning from the flat glass. Use a flashlight to check for scratches on the glass.

[nhmartens]

Sorry, for the long delay.

OK.  you get the gold star this month.  It not only took a flashlight but a magnifying glass to see it.  Once I wiped the offender away, my line disappeared.  Thank you very much.