Vertical lines in the scanned paper can be caused by a few different factors. Here are some possible reasons:
Dust or debris on the scanner glass: If there is dust or debris on the scanner glass, it can cause vertical lines to appear in the scanned image. To fix this issue, try cleaning the scanner glass with a soft cloth and some cleaning solution.
Damaged scanner glass: If the scanner glass is scratched or otherwise damaged, it can cause vertical lines to appear in the scanned image. In this case, you may need to replace the scanner glass.
You can try cleaning the scanner glass if you haven't already. Also there is an article with more information on what may help resolve that issue.
I have my printer scanning images like this, with light discolored vertical lines.
The white areas appear just fine. Any colored areas have these lines.
I'm getting the lines through DADF or through glass. The same exact lines from both
and I can't see any object or dirt that makes these lines
Please can you help me.